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root/public/ibx/trunk/runtime/IBSQL.pas

Comparing ibx/trunk/runtime/IBSQL.pas (file contents):
Revision 43 by tony, Thu Sep 22 17:10:15 2016 UTC vs.
Revision 139 by tony, Wed Jan 24 16:16:29 2018 UTC

#	Line 35 | Line 35 | unit IBSQL;
35
36		{$Mode Delphi}
37
38	–	{$IF FPC_FULLVERSION >= 20700 }
38		{$codepage UTF8}
40	–	{$DEFINE HAS_ANSISTRING_CODEPAGE}
41	–	{$ENDIF}
39
40	<	{ IBSQL param names in dialect 3 quoted format (e.g. :"MyParam") are by default disabled.
40	>	(* Define IBXQUERYSTATS to write to stdout a summary of query execution
41	>	statistics each time a query is executed
42	>
43	>	Define IBXQUERYTIME to write to stdout The local execution time for each
44	>	query
45	>	*)
46
47	<	Dialect 3 quoted format parameter names represent a significant overhead and are of
48	<	limited value - especially for users that use only TIBSQL or TIBCustomDataset
47	<	descendents. They were previously used internally by IBX to simplify SQL generation
48	<	for TTable components in Master/Slave relationships which are linked by
49	<	Dialect 3 names. They were also generated by TStoredProc when the original
50	<	parameter names are quoted.
51	<
52	<	However, for some users they do cause a big processing overhead. The TTable/TStoredProc
53	<	code has been re-written so that they are no required by IBX internally.
54	<	The code to support quoted parameter names is now subject  to conditional compilation.
55	<	To enable support, ALLOWDIALECT3PARAMNAMES should be defined when IBX is compiled.
56	<
57	<	Hint: deleting the space between the brace and the dollar sign below
58	<
59	<	}
60	<
61	<	{ $define ALLOWDIALECT3PARAMNAMES}
62	<
63	<	{$ifndef ALLOWDIALECT3PARAMNAMES}
64	<
65	<	{ Even when dialect 3 quoted format parameter names are not supported, IBX still processes
66	<	parameter names case insensitive. This does result in some additional overhead
67	<	due to a call to "AnsiUpperCase". This can be avoided by undefining
68	<	"UseCaseSensitiveParamName" below.
69	<
70	<	Note: do not define "UseCaseSensitiveParamName" when "ALLOWDIALECT3PARAMNAMES"
71	<	is defined. This will not give a useful result.
72	<	}
73	<	{$define UseCaseSensitiveParamName}
74	<	{$endif}
47	>	{ $DEFINE IBXQUERYSTATS}
48	>	{ $DEFINE IBXQUERYTIME}
49
50		interface
51
#	Line 81 | Line 55 | uses
55		{$ELSE}
56		baseunix, unix,
57		{$ENDIF}
58	<	SysUtils, Classes, IBHeader,
85	<	IBErrorCodes, IBExternals, DB, IB, IBDatabase, IBUtils, IBXConst;
86	<
87	<	const
88	<	sSQLErrorSeparator = ' When Executing: ';
58	>	SysUtils, Classes, IBExternals, IB, IBDatabase, IBUtils;
59
60		type
91	–	TIBSQL = class;
92	–	TIBXSQLDA = class;
93	–
94	–	{ TIBXSQLVAR }
95	–	TIBXSQLVAR = class(TObject)
96	–	private
97	–	FParent: TIBXSQLDA;
98	–	FSQL: TIBSQL;
99	–	FIndex: Integer;
100	–	FCharSetID: integer;
101	–	FModified: Boolean;
102	–	FName: String;
103	–	FUniqueName: boolean;
104	–	FXSQLVAR: PXSQLVAR;       { Point to the PXSQLVAR in the owner object }
105	–
106	–	function AdjustScale(Value: Int64; Scale: Integer): Double;
107	–	function AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
108	–	function AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
109	–	function GetAsBoolean: boolean;
110	–	function GetAsCurrency: Currency;
111	–	function GetAsInt64: Int64;
112	–	function GetAsDateTime: TDateTime;
113	–	function GetAsDouble: Double;
114	–	function GetAsFloat: Float;
115	–	function GetAsLong: Long;
116	–	function GetAsPointer: Pointer;
117	–	function GetAsQuad: TISC_QUAD;
118	–	function GetAsShort: Short;
119	–	function GetAsString: String;
120	–	function GetAsVariant: Variant;
121	–	function GetAsXSQLVAR: PXSQLVAR;
122	–	function GetIsNull: Boolean;
123	–	function GetIsNullable: Boolean;
124	–	function GetSize: Integer;
125	–	function GetSQLType: Integer;
126	–	procedure SetAsBoolean(AValue: boolean);
127	–	procedure SetAsCurrency(Value: Currency);
128	–	procedure SetAsInt64(Value: Int64);
129	–	procedure SetAsDate(Value: TDateTime);
130	–	procedure SetAsLong(Value: Long);
131	–	procedure SetAsTime(Value: TDateTime);
132	–	procedure SetAsDateTime(Value: TDateTime);
133	–	procedure SetAsDouble(Value: Double);
134	–	procedure SetAsFloat(Value: Float);
135	–	procedure SetAsPointer(Value: Pointer);
136	–	procedure SetAsQuad(Value: TISC_QUAD);
137	–	procedure SetAsShort(Value: Short);
138	–	procedure SetAsString(Value: String);
139	–	procedure SetAsVariant(Value: Variant);
140	–	procedure SetAsXSQLVAR(Value: PXSQLVAR);
141	–	procedure SetIsNull(Value: Boolean);
142	–	procedure SetIsNullable(Value: Boolean);
143	–	procedure xSetAsBoolean(AValue: boolean);
144	–	procedure xSetAsCurrency(Value: Currency);
145	–	procedure xSetAsInt64(Value: Int64);
146	–	procedure xSetAsDate(Value: TDateTime);
147	–	procedure xSetAsTime(Value: TDateTime);
148	–	procedure xSetAsDateTime(Value: TDateTime);
149	–	procedure xSetAsDouble(Value: Double);
150	–	procedure xSetAsFloat(Value: Float);
151	–	procedure xSetAsLong(Value: Long);
152	–	procedure xSetAsPointer(Value: Pointer);
153	–	procedure xSetAsQuad(Value: TISC_QUAD);
154	–	procedure xSetAsShort(Value: Short);
155	–	procedure xSetAsString(Value: String);
156	–	procedure xSetAsVariant(Value: Variant);
157	–	procedure xSetAsXSQLVAR(Value: PXSQLVAR);
158	–	procedure xSetIsNull(Value: Boolean);
159	–	procedure xSetIsNullable(Value: Boolean);
160	–	public
161	–	constructor Create(Parent: TIBXSQLDA; Query: TIBSQL);
162	–	procedure Assign(Source: TIBXSQLVAR);
163	–	procedure Clear;
164	–	function GetCharSetID: integer;
165	–	{$IFDEF HAS_ANSISTRING_CODEPAGE}
166	–	function GetCodePage: TSystemCodePage;
167	–	{$ENDIF}
168	–	procedure LoadFromFile(const FileName: String);
169	–	procedure LoadFromStream(Stream: TStream);
170	–	procedure SaveToFile(const FileName: String);
171	–	procedure SaveToStream(Stream: TStream);
172	–	property AsDate: TDateTime read GetAsDateTime write SetAsDate;
173	–	property AsBoolean:boolean read GetAsBoolean write SetAsBoolean;
174	–	property AsTime: TDateTime read GetAsDateTime write SetAsTime;
175	–	property AsDateTime: TDateTime read GetAsDateTime write SetAsDateTime;
176	–	property AsDouble: Double read GetAsDouble write SetAsDouble;
177	–	property AsFloat: Float read GetAsFloat write SetAsFloat;
178	–	property AsCurrency: Currency read GetAsCurrency write SetAsCurrency;
179	–	property AsInt64: Int64 read GetAsInt64 write SetAsInt64;
180	–	property AsInteger: Integer read GetAsLong write SetAsLong;
181	–	property AsLong: Long read GetAsLong write SetAsLong;
182	–	property AsPointer: Pointer read GetAsPointer write SetAsPointer;
183	–	property AsQuad: TISC_QUAD read GetAsQuad write SetAsQuad;
184	–	property AsShort: Short read GetAsShort write SetAsShort;
185	–	property AsString: String read GetAsString write SetAsString;
186	–	property AsVariant: Variant read GetAsVariant write SetAsVariant;
187	–	property AsXSQLVAR: PXSQLVAR read GetAsXSQLVAR write SetAsXSQLVAR;
188	–	property Data: PXSQLVAR read FXSQLVAR write FXSQLVAR;
189	–	property IsNull: Boolean read GetIsNull write SetIsNull;
190	–	property IsNullable: Boolean read GetIsNullable write SetIsNullable;
191	–	property Index: Integer read FIndex;
192	–	property Modified: Boolean read FModified write FModified;
193	–	property Name: String read FName;
194	–	property Size: Integer read GetSize;
195	–	property SQLType: Integer read GetSQLType;
196	–	property Value: Variant read GetAsVariant write SetAsVariant;
197	–	end;
198	–
199	–	TIBXSQLVARArray = Array of TIBXSQLVAR;
200	–
201	–	TIBXSQLDAType = (daInput,daOutput);
202	–
203	–	{ TIBXSQLDA }
204	–
205	–	TIBXSQLDA = class(TObject)
206	–	protected
207	–	FSQL: TIBSQL;
208	–	FCount: Integer;
209	–	FSize: Integer;
210	–	FInputSQLDA: boolean;
211	–	FXSQLDA: PXSQLDA;
212	–	FXSQLVARs: TIBXSQLVARArray; { array of IBXQLVARs }
213	–	FUniqueRelationName: String;
214	–	function GetModified: Boolean;
215	–	function GetRecordSize: Integer;
216	–	function GetXSQLDA: PXSQLDA;
217	–	function GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
218	–	function GetXSQLVARByName(Idx: String): TIBXSQLVAR;
219	–	procedure Initialize;
220	–	procedure SetCount(Value: Integer);
221	–	public
222	–	constructor Create(Query: TIBSQL; sqldaType: TIBXSQLDAType);
223	–	destructor Destroy; override;
224	–	procedure SetParamName(FieldName: String; Idx: Integer; UniqueName: boolean = false);
225	–	function ByName(Idx: String): TIBXSQLVAR;
226	–	property AsXSQLDA: PXSQLDA read GetXSQLDA;
227	–	property Count: Integer read FCount write SetCount;
228	–	property Modified: Boolean read GetModified;
229	–	property RecordSize: Integer read GetRecordSize;
230	–	property Vars[Idx: Integer]: TIBXSQLVAR read GetXSQLVAR; default;
231	–	property UniqueRelationName: String read FUniqueRelationName;
232	–	end;
233	–
61		{ TIBBatch }
62
63		TIBBatch = class(TObject)
64		protected
65		FFilename: String;
66	<	FColumns: TIBXSQLDA;
67	<	FParams: TIBXSQLDA;
66	>	FColumns: IResults;
67	>	FParams: ISQLParams;
68		public
69		procedure ReadyFile; virtual; abstract;
70	<	property Columns: TIBXSQLDA read FColumns;
70	>	property Columns: IResults read FColumns;
71		property Filename: String read FFilename write FFilename;
72	<	property Params: TIBXSQLDA read FParams;
72	>	property Params: ISQLParams read FParams;
73		end;
74
75		TIBBatchInput = class(TIBBatch)
#	Line 328 | Line 155 | type
155		end;
156
157		{ TIBSQL }
331	–	TIBSQLTypes = (SQLUnknown, SQLSelect, SQLInsert,
332	–	SQLUpdate, SQLDelete, SQLDDL,
333	–	SQLGetSegment, SQLPutSegment,
334	–	SQLExecProcedure, SQLStartTransaction,
335	–	SQLCommit, SQLRollback,
336	–	SQLSelectForUpdate, SQLSetGenerator);
158
159		TIBSQL = class(TComponent)
160		private
161	<	FIBLoaded: Boolean;
161	>	FMetaData: IMetaData;
162	>	FSQLParams: ISQLParams;
163	>	FStatement: IStatement;
164		FOnSQLChanged: TNotifyEvent;
165		FUniqueParamNames: Boolean;
166	+	FBOF: boolean;
167	+	FEOF: boolean;
168		function GetFieldCount: integer;
169	+	function GetOpen: Boolean;
170	+	function GetPrepared: Boolean;
171	+	function GetSQLStatementType: TIBSQLStatementTypes;
172		procedure SetUniqueParamNames(AValue: Boolean);
173		protected
174		FBase: TIBBase;
175	<	FBOF,                          { At BOF? }
348	<	FEOF,                          { At EOF? }
349	<	FGoToFirstRecordOnExecute,     { Automatically position record on first record after executing }
350	<	FOpen,                         { Is a cursor open? }
351	<	FPrepared: Boolean;            { Has the query been prepared? }
175	>	FGoToFirstRecordOnExecute: boolean;     { Automatically position record on first record after executing }
176		FRecordCount: Integer;         { How many records have been read so far? }
353	–	FCursor: String;               { Cursor name...}
354	–	FHandle: TISC_STMT_HANDLE;     { Once prepared, this accesses the SQL Query }
177		FOnSQLChanging: TNotifyEvent;  { Call this when the SQL is changing }
178		FSQL: TStrings;                { SQL Query (by user) }
179		FParamCheck: Boolean;          { Check for parameters? (just like TQuery) }
180	<	FProcessedSQL: TStrings;       { SQL Query (pre-processed for param labels) }
181	<	FSQLParams,                    { Any parameters to the query }
360	<	FSQLRecord: TIBXSQLDA;         { The current record }
361	<	FSQLType: TIBSQLTypes;         { Select, update, delete, insert, create, alter, etc...}
180	>	FResults: IResults;            {Single row results from exec}
181	>	FResultSet: IResultSet;        {Multi-row results from open cursor}
182		FGenerateParamNames: Boolean;  { Auto generate param names ?}
183		procedure DoBeforeDatabaseDisconnect(Sender: TObject);
184		function GetDatabase: TIBDatabase;
365	–	function GetDBHandle: PISC_DB_HANDLE;
185		function GetEOF: Boolean;
186	<	function GetFields(const Idx: Integer): TIBXSQLVAR;
186	>	function GetFields(const Idx: Integer): ISQLData;
187		function GetFieldIndex(FieldName: String): Integer;
188		function GetPlan: String;
189		function GetRecordCount: Integer;
190		function GetRowsAffected: Integer;
191	<	function GetSQLParams: TIBXSQLDA;
191	>	function GetSQLParams: ISQLParams;
192		function GetTransaction: TIBTransaction;
374	–	function GetTRHandle: PISC_TR_HANDLE;
375	–	procedure PreprocessSQL;
193		procedure SetDatabase(Value: TIBDatabase);
194		procedure SetSQL(Value: TStrings);
195		procedure SetTransaction(Value: TIBTransaction);
#	Line 384 | Line 201 | type
201		destructor Destroy; override;
202		procedure BatchInput(InputObject: TIBBatchInput);
203		procedure BatchOutput(OutputObject: TIBBatchOutput);
387	–	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
204		procedure CheckClosed;           { raise error if query is not closed. }
205		procedure CheckOpen;             { raise error if query is not open.}
206		procedure CheckValidStatement;   { raise error if statement is invalid.}
207		procedure Close;
392	–	function Current: TIBXSQLDA;
208		procedure ExecQuery;
209	<	function FieldByName(FieldName: String): TIBXSQLVAR;
210	<	function ParamByName(ParamName: String): TIBXSQLVAR;
209	>	function HasField(FieldName: String): boolean;
210	>	function FieldByName(FieldName: String): ISQLData;
211	>	function ParamByName(ParamName: String): ISQLParam;
212		procedure FreeHandle;
213	<	function Next: TIBXSQLDA;
213	>	function Next: boolean;
214		procedure Prepare;
215		function GetUniqueRelationName: String;
216		property Bof: Boolean read FBOF;
401	–	property DBHandle: PISC_DB_HANDLE read GetDBHandle;
217		property Eof: Boolean read GetEOF;
218	<	property Fields[const Idx: Integer]: TIBXSQLVAR read GetFields;
218	>	property Current: IResults read FResults;
219	>	property Fields[const Idx: Integer]: ISQLData read GetFields; default;
220		property FieldIndex[FieldName: String]: Integer read GetFieldIndex;
221		property FieldCount: integer read GetFieldCount;
222	<	property Open: Boolean read FOpen;
223	<	property Params: TIBXSQLDA read GetSQLParams;
222	>	property Open: Boolean read GetOpen;
223	>	property Params: ISQLParams read GetSQLParams;
224		property Plan: String read GetPlan;
225	<	property Prepared: Boolean read FPrepared;
225	>	property Prepared: Boolean read GetPrepared;
226		property RecordCount: Integer read GetRecordCount;
227		property RowsAffected: Integer read GetRowsAffected;
228	<	property SQLType: TIBSQLTypes read FSQLType;
413	<	property TRHandle: PISC_TR_HANDLE read GetTRHandle;
414	<	property Handle: TISC_STMT_HANDLE read FHandle;
228	>	property SQLStatementType: TIBSQLStatementTypes read GetSQLStatementType;
229		property UniqueRelationName: String read GetUniqueRelationName;
230	+	property Statement: IStatement read FStatement;
231	+	property MetaData: IMetaData read FMetaData;
232		published
233		property Database: TIBDatabase read GetDatabase write SetDatabase;
234		property GenerateParamNames: Boolean read FGenerateParamNames write FGenerateParamNames;
#	Line 427 | Line 243 | type
243		property OnSQLChanged: TNotifyEvent read FOnSQLChanged write FOnSQLChanged;
244		end;
245
246	+	procedure IBAlloc(var P; OldSize, NewSize: Integer);
247	+
248		implementation
249
250		uses
251	<	IBIntf, IBBlob, Variants , IBSQLMonitor, IBCodePage;
434	<
435	<	{ TIBXSQLVAR }
436	<	constructor TIBXSQLVAR.Create(Parent: TIBXSQLDA; Query: TIBSQL);
437	<	begin
438	<	inherited Create;
439	<	FParent := Parent;
440	<	FSQL := Query;
441	<	end;
442	<
443	<	procedure TIBXSQLVAR.Assign(Source: TIBXSQLVAR);
444	<	var
445	<	szBuff: PChar;
446	<	s_bhandle, d_bhandle: TISC_BLOB_HANDLE;
447	<	bSourceBlob, bDestBlob: Boolean;
448	<	iSegs: Int64;
449	<	iMaxSeg: Int64;
450	<	iSize: Int64;
451	<	iBlobType: Short;
452	<	begin
453	<	szBuff := nil;
454	<	bSourceBlob := True;
455	<	bDestBlob := True;
456	<	s_bhandle := nil;
457	<	d_bhandle := nil;
458	<	try
459	<	if (Source.IsNull) then
460	<	begin
461	<	IsNull := True;
462	<	exit;
463	<	end
464	<	else
465	<	if (FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) or
466	<	(Source.FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) then
467	<	exit; { arrays not supported }
468	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
469	<	(Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
470	<	begin
471	<	AsXSQLVAR := Source.AsXSQLVAR;
472	<	exit;
473	<	end
474	<	else
475	<	if (Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
476	<	begin
477	<	szBuff := nil;
478	<	IBAlloc(szBuff, 0, Source.FXSQLVAR^.sqllen);
479	<	Move(Source.FXSQLVAR^.sqldata[0], szBuff[0], Source.FXSQLVAR^.sqllen);
480	<	bSourceBlob := False;
481	<	iSize := Source.FXSQLVAR^.sqllen;
482	<	end
483	<	else
484	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
485	<	bDestBlob := False;
486	<
487	<	if bSourceBlob then
488	<	begin
489	<	{ read the blob }
490	<	Source.FSQL.Call(isc_open_blob2(StatusVector, Source.FSQL.DBHandle,
491	<	Source.FSQL.TRHandle, @s_bhandle, PISC_QUAD(Source.FXSQLVAR.sqldata),
492	<	0, nil), True);
493	<	try
494	<	IBBlob.GetBlobInfo(@s_bhandle, iSegs, iMaxSeg, iSize,
495	<	iBlobType);
496	<	szBuff := nil;
497	<	IBAlloc(szBuff, 0, iSize);
498	<	IBBlob.ReadBlob(@s_bhandle, szBuff, iSize);
499	<	finally
500	<	Source.FSQL.Call(isc_close_blob(StatusVector, @s_bhandle), True);
501	<	end;
502	<	end;
503	<
504	<	if bDestBlob then
505	<	begin
506	<	{ write the blob }
507	<	FSQL.Call(isc_create_blob2(StatusVector, FSQL.DBHandle,
508	<	FSQL.TRHandle, @d_bhandle, PISC_QUAD(FXSQLVAR.sqldata),
509	<	0, nil), True);
510	<	try
511	<	IBBlob.WriteBlob(@d_bhandle, szBuff, iSize);
512	<	isNull := false
513	<	finally
514	<	FSQL.Call(isc_close_blob(StatusVector, @d_bhandle), True);
515	<	end;
516	<	end
517	<	else
518	<	begin
519	<	{ just copy the buffer }
520	<	FXSQLVAR.sqltype := SQL_TEXT;
521	<	FXSQLVAR.sqllen := iSize;
522	<	IBAlloc(FXSQLVAR.sqldata, iSize, iSize);
523	<	Move(szBuff[0], FXSQLVAR^.sqldata[0], iSize);
524	<	end;
525	<	finally
526	<	FreeMem(szBuff);
527	<	end;
528	<	end;
529	<
530	<	function TIBXSQLVAR.AdjustScale(Value: Int64; Scale: Integer): Double;
531	<	var
532	<	Scaling : Int64;
533	<	i: Integer;
534	<	Val: Double;
535	<	begin
536	<	Scaling := 1; Val := Value;
537	<	if Scale > 0 then
538	<	begin
539	<	for i := 1 to Scale do
540	<	Scaling := Scaling * 10;
541	<	result := Val * Scaling;
542	<	end
543	<	else
544	<	if Scale < 0 then
545	<	begin
546	<	for i := -1 downto Scale do
547	<	Scaling := Scaling * 10;
548	<	result := Val / Scaling;
549	<	end
550	<	else
551	<	result := Val;
552	<	end;
553	<
554	<	function TIBXSQLVAR.AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
555	<	var
556	<	Scaling : Int64;
557	<	i: Integer;
558	<	Val: Int64;
559	<	begin
560	<	Scaling := 1; Val := Value;
561	<	if Scale > 0 then begin
562	<	for i := 1 to Scale do Scaling := Scaling * 10;
563	<	result := Val * Scaling;
564	<	end else if Scale < 0 then begin
565	<	for i := -1 downto Scale do Scaling := Scaling * 10;
566	<	result := Val div Scaling;
567	<	end else
568	<	result := Val;
569	<	end;
570	<
571	<	function TIBXSQLVAR.AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
572	<	var
573	<	Scaling : Int64;
574	<	i : Integer;
575	<	FractionText, PadText, CurrText: string;
576	<	begin
577	<	Result := 0;
578	<	Scaling := 1;
579	<	if Scale > 0 then
580	<	begin
581	<	for i := 1 to Scale do
582	<	Scaling := Scaling * 10;
583	<	result := Value * Scaling;
584	<	end
585	<	else
586	<	if Scale < 0 then
587	<	begin
588	<	for i := -1 downto Scale do
589	<	Scaling := Scaling * 10;
590	<	FractionText := IntToStr(abs(Value mod Scaling));
591	<	for i := Length(FractionText) to -Scale -1 do
592	<	PadText := '0' + PadText;
593	<	if Value < 0 then
594	<	CurrText := '-' + IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText
595	<	else
596	<	CurrText := IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText;
597	<	try
598	<	result := StrToCurr(CurrText);
599	<	except
600	<	on E: Exception do
601	<	IBError(ibxeInvalidDataConversion, [nil]);
602	<	end;
603	<	end
604	<	else
605	<	result := Value;
606	<	end;
607	<
608	<	function TIBXSQLVAR.GetAsBoolean: boolean;
609	<	begin
610	<	result := false;
611	<	if not IsNull then
612	<	begin
613	<	if FXSQLVAR^.sqltype and (not 1) = SQL_BOOLEAN then
614	<	result := PByte(FXSQLVAR^.sqldata)^ = ISC_TRUE
615	<	else
616	<	IBError(ibxeInvalidDataConversion, [nil]);
617	<	end
618	<	end;
619	<
620	<	function TIBXSQLVAR.GetAsCurrency: Currency;
621	<	begin
622	<	result := 0;
623	<	if FSQL.Database.SQLDialect < 3 then
624	<	result := GetAsDouble
625	<	else begin
626	<	if not IsNull then
627	<	case FXSQLVAR^.sqltype and (not 1) of
628	<	SQL_TEXT, SQL_VARYING: begin
629	<	try
630	<	result := StrtoCurr(AsString);
631	<	except
632	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
633	<	end;
634	<	end;
635	<	SQL_SHORT:
636	<	result := AdjustScaleToCurrency(Int64(PShort(FXSQLVAR^.sqldata)^),
637	<	FXSQLVAR^.sqlscale);
638	<	SQL_LONG:
639	<	result := AdjustScaleToCurrency(Int64(PLong(FXSQLVAR^.sqldata)^),
640	<	FXSQLVAR^.sqlscale);
641	<	SQL_INT64:
642	<	result := AdjustScaleToCurrency(PInt64(FXSQLVAR^.sqldata)^,
643	<	FXSQLVAR^.sqlscale);
644	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
645	<	result := Trunc(AsDouble);
646	<	else
647	<	IBError(ibxeInvalidDataConversion, [nil]);
648	<	end;
649	<	end;
650	<	end;
651	<
652	<	function TIBXSQLVAR.GetAsInt64: Int64;
653	<	begin
654	<	result := 0;
655	<	if not IsNull then
656	<	case FXSQLVAR^.sqltype and (not 1) of
657	<	SQL_TEXT, SQL_VARYING: begin
658	<	try
659	<	result := StrToInt64(AsString);
660	<	except
661	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
662	<	end;
663	<	end;
664	<	SQL_SHORT:
665	<	result := AdjustScaleToInt64(Int64(PShort(FXSQLVAR^.sqldata)^),
666	<	FXSQLVAR^.sqlscale);
667	<	SQL_LONG:
668	<	result := AdjustScaleToInt64(Int64(PLong(FXSQLVAR^.sqldata)^),
669	<	FXSQLVAR^.sqlscale);
670	<	SQL_INT64:
671	<	result := AdjustScaleToInt64(PInt64(FXSQLVAR^.sqldata)^,
672	<	FXSQLVAR^.sqlscale);
673	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
674	<	result := Trunc(AsDouble);
675	<	else
676	<	IBError(ibxeInvalidDataConversion, [nil]);
677	<	end;
678	<	end;
679	<
680	<	function TIBXSQLVAR.GetAsDateTime: TDateTime;
681	<	var
682	<	tm_date: TCTimeStructure;
683	<	msecs: word;
684	<	begin
685	<	result := 0;
686	<	if not IsNull then
687	<	case FXSQLVAR^.sqltype and (not 1) of
688	<	SQL_TEXT, SQL_VARYING: begin
689	<	try
690	<	result := StrToDate(AsString);
691	<	except
692	<	on E: EConvertError do IBError(ibxeInvalidDataConversion, [nil]);
693	<	end;
694	<	end;
695	<	SQL_TYPE_DATE: begin
696	<	isc_decode_sql_date(PISC_DATE(FXSQLVAR^.sqldata), @tm_date);
697	<	try
698	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
699	<	Word(tm_date.tm_mday));
700	<	except
701	<	on E: EConvertError do begin
702	<	IBError(ibxeInvalidDataConversion, [nil]);
703	<	end;
704	<	end;
705	<	end;
706	<	SQL_TYPE_TIME: begin
707	<	isc_decode_sql_time(PISC_TIME(FXSQLVAR^.sqldata), @tm_date);
708	<	try
709	<	msecs :=  (PISC_TIME(FXSQLVAR^.sqldata)^ mod 10000) div 10;
710	<	result := EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
711	<	Word(tm_date.tm_sec), msecs)
712	<	except
713	<	on E: EConvertError do begin
714	<	IBError(ibxeInvalidDataConversion, [nil]);
715	<	end;
716	<	end;
717	<	end;
718	<	SQL_TIMESTAMP: begin
719	<	isc_decode_date(PISC_QUAD(FXSQLVAR^.sqldata), @tm_date);
720	<	try
721	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
722	<	Word(tm_date.tm_mday));
723	<	msecs := (PISC_TIMESTAMP(FXSQLVAR^.sqldata)^.timestamp_time mod 10000) div 10;
724	<	if result >= 0 then
725	<	result := result + EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
726	<	Word(tm_date.tm_sec), msecs)
727	<	else
728	<	result := result - EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
729	<	Word(tm_date.tm_sec), msecs)
730	<	except
731	<	on E: EConvertError do begin
732	<	IBError(ibxeInvalidDataConversion, [nil]);
733	<	end;
734	<	end;
735	<	end;
736	<	else
737	<	IBError(ibxeInvalidDataConversion, [nil]);
738	<	end;
739	<	end;
740	<
741	<	function TIBXSQLVAR.GetAsDouble: Double;
742	<	begin
743	<	result := 0;
744	<	if not IsNull then begin
745	<	case FXSQLVAR^.sqltype and (not 1) of
746	<	SQL_TEXT, SQL_VARYING: begin
747	<	try
748	<	result := StrToFloat(AsString);
749	<	except
750	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
751	<	end;
752	<	end;
753	<	SQL_SHORT:
754	<	result := AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
755	<	FXSQLVAR^.sqlscale);
756	<	SQL_LONG:
757	<	result := AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
758	<	FXSQLVAR^.sqlscale);
759	<	SQL_INT64:
760	<	result := AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale);
761	<	SQL_FLOAT:
762	<	result := PFloat(FXSQLVAR^.sqldata)^;
763	<	SQL_DOUBLE, SQL_D_FLOAT:
764	<	result := PDouble(FXSQLVAR^.sqldata)^;
765	<	else
766	<	IBError(ibxeInvalidDataConversion, [nil]);
767	<	end;
768	<	if  FXSQLVAR^.sqlscale <> 0 then
769	<	result :=
770	<	StrToFloat(FloatToStrF(result, fffixed, 15,
771	<	Abs(FXSQLVAR^.sqlscale) ));
772	<	end;
773	<	end;
774	<
775	<	function TIBXSQLVAR.GetAsFloat: Float;
776	<	begin
777	<	result := 0;
778	<	try
779	<	result := AsDouble;
780	<	except
781	<	on E: EOverflow do
782	<	IBError(ibxeInvalidDataConversion, [nil]);
783	<	end;
784	<	end;
785	<
786	<	function TIBXSQLVAR.GetAsLong: Long;
787	<	begin
788	<	result := 0;
789	<	if not IsNull then
790	<	case FXSQLVAR^.sqltype and (not 1) of
791	<	SQL_TEXT, SQL_VARYING: begin
792	<	try
793	<	result := StrToInt(AsString);
794	<	except
795	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
796	<	end;
797	<	end;
798	<	SQL_SHORT:
799	<	result := Trunc(AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
800	<	FXSQLVAR^.sqlscale));
801	<	SQL_LONG:
802	<	result := Trunc(AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
803	<	FXSQLVAR^.sqlscale));
804	<	SQL_INT64:
805	<	result := Trunc(AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale));
806	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
807	<	result := Trunc(AsDouble);
808	<	else
809	<	IBError(ibxeInvalidDataConversion, [nil]);
810	<	end;
811	<	end;
812	<
813	<	function TIBXSQLVAR.GetAsPointer: Pointer;
814	<	begin
815	<	if not IsNull then
816	<	result := FXSQLVAR^.sqldata
817	<	else
818	<	result := nil;
819	<	end;
820	<
821	<	function TIBXSQLVAR.GetAsQuad: TISC_QUAD;
822	<	begin
823	<	result.gds_quad_high := 0;
824	<	result.gds_quad_low := 0;
825	<	if not IsNull then
826	<	case FXSQLVAR^.sqltype and (not 1) of
827	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD:
828	<	result := PISC_QUAD(FXSQLVAR^.sqldata)^;
829	<	else
830	<	IBError(ibxeInvalidDataConversion, [nil]);
831	<	end;
832	<	end;
833	<
834	<	function TIBXSQLVAR.GetAsShort: Short;
835	<	begin
836	<	result := 0;
837	<	try
838	<	result := AsLong;
839	<	except
840	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
841	<	end;
842	<	end;
843	<
844	<
845	<	function TIBXSQLVAR.GetAsString: String;
846	<	var
847	<	sz: PChar;
848	<	str_len: Integer;
849	<	ss: TStringStream;
850	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
851	<	rs: RawByteString;
852	<	{$ENDIF}
853	<	begin
854	<	result := '';
855	<	{ Check null, if so return a default string }
856	<	if not IsNull then
857	<	case FXSQLVar^.sqltype and (not 1) of
858	<	SQL_ARRAY:
859	<	result := '(Array)'; {do not localize}
860	<	SQL_BLOB: begin
861	<	ss := TStringStream.Create('');
862	<	try
863	<	SaveToStream(ss);
864	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
865	<	rs := ss.DataString;
866	<	SetCodePage(rs,GetCodePage,false);
867	<	result := rs;
868	<	{$ELSE}
869	<	result := ss.DataString;
870	<	{$ENDIF}
871	<	finally
872	<	ss.Free;
873	<	end;
874	<	end;
875	<	SQL_TEXT, SQL_VARYING: begin
876	<	sz := FXSQLVAR^.sqldata;
877	<	if (FXSQLVar^.sqltype and (not 1) = SQL_TEXT) then
878	<	str_len := FXSQLVar^.sqllen
879	<	else begin
880	<	str_len := isc_vax_integer(FXSQLVar^.sqldata, 2);
881	<	Inc(sz, 2);
882	<	end;
883	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
884	<	SetString(rs, sz, str_len);
885	<	SetCodePage(rs,GetCodePage,false);
886	<	result := rs;
887	<	{$ELSE}
888	<	SetString(result, sz, str_len);
889	<	{$ENDIF}
890	<	if ((FXSQLVar^.sqltype and (not 1)) = SQL_TEXT) then
891	<	result := TrimRight(result);
892	<	end;
893	<	SQL_TYPE_DATE:
894	<	case FSQL.Database.SQLDialect of
895	<	1 : result := DateTimeToStr(AsDateTime);
896	<	3 : result := DateToStr(AsDateTime);
897	<	end;
898	<	SQL_TYPE_TIME :
899	<	result := TimeToStr(AsDateTime);
900	<	SQL_TIMESTAMP:
901	<	result := DateTimeToStr(AsDateTime);
902	<	SQL_SHORT, SQL_LONG:
903	<	if FXSQLVAR^.sqlscale = 0 then
904	<	result := IntToStr(AsLong)
905	<	else if FXSQLVAR^.sqlscale >= (-4) then
906	<	result := CurrToStr(AsCurrency)
907	<	else
908	<	result := FloatToStr(AsDouble);
909	<	SQL_INT64:
910	<	if FXSQLVAR^.sqlscale = 0 then
911	<	result := IntToStr(AsInt64)
912	<	else if FXSQLVAR^.sqlscale >= (-4) then
913	<	result := CurrToStr(AsCurrency)
914	<	else
915	<	result := FloatToStr(AsDouble);
916	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
917	<	result := FloatToStr(AsDouble);
918	<	else
919	<	IBError(ibxeInvalidDataConversion, [nil]);
920	<	end;
921	<	end;
922	<
923	<	function TIBXSQLVAR.GetAsVariant: Variant;
924	<	begin
925	<	if IsNull then
926	<	result := NULL
927	<	{ Check null, if so return a default string }
928	<	else case FXSQLVar^.sqltype and (not 1) of
929	<	SQL_ARRAY:
930	<	result := '(Array)'; {do not localize}
931	<	SQL_BLOB:
932	<	result := '(Blob)'; {do not localize}
933	<	SQL_TEXT, SQL_VARYING:
934	<	result := AsString;
935	<	SQL_TIMESTAMP, SQL_TYPE_DATE, SQL_TYPE_TIME:
936	<	result := AsDateTime;
937	<	SQL_SHORT, SQL_LONG:
938	<	if FXSQLVAR^.sqlscale = 0 then
939	<	result := AsLong
940	<	else if FXSQLVAR^.sqlscale >= (-4) then
941	<	result := AsCurrency
942	<	else
943	<	result := AsDouble;
944	<	SQL_INT64:
945	<	if FXSQLVAR^.sqlscale = 0 then
946	<	result := AsInt64
947	<	else if FXSQLVAR^.sqlscale >= (-4) then
948	<	result := AsCurrency
949	<	else
950	<	result := AsDouble;
951	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
952	<	result := AsDouble;
953	<	SQL_BOOLEAN:
954	<	result := AsBoolean;
955	<	else
956	<	IBError(ibxeInvalidDataConversion, [nil]);
957	<	end;
958	<	end;
959	<
960	<	function TIBXSQLVAR.GetAsXSQLVAR: PXSQLVAR;
961	<	begin
962	<	result := FXSQLVAR;
963	<	end;
964	<
965	<	function TIBXSQLVAR.GetIsNull: Boolean;
966	<	begin
967	<	result := IsNullable and (FXSQLVAR^.sqlind^ = -1);
968	<	end;
969	<
970	<	function TIBXSQLVAR.GetIsNullable: Boolean;
971	<	begin
972	<	result := (FXSQLVAR^.sqltype and 1 = 1);
973	<	end;
974	<
975	<	procedure TIBXSQLVAR.LoadFromFile(const FileName: String);
976	<	var
977	<	fs: TFileStream;
978	<	begin
979	<	fs := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
980	<	try
981	<	LoadFromStream(fs);
982	<	finally
983	<	fs.Free;
984	<	end;
985	<	end;
986	<
987	<	procedure TIBXSQLVAR.LoadFromStream(Stream: TStream);
988	<	var
989	<	bs: TIBBlobStream;
990	<	begin
991	<	bs := TIBBlobStream.Create;
992	<	try
993	<	bs.Mode := bmWrite;
994	<	bs.Database := FSQL.Database;
995	<	bs.Transaction := FSQL.Transaction;
996	<	Stream.Seek(0, soFromBeginning);
997	<	bs.LoadFromStream(Stream);
998	<	bs.Finalize;
999	<	AsQuad := bs.BlobID;
1000	<	finally
1001	<	bs.Free;
1002	<	end;
1003	<	end;
1004	<
1005	<	procedure TIBXSQLVAR.SaveToFile(const FileName: String);
1006	<	var
1007	<	fs: TFileStream;
1008	<	begin
1009	<	fs := TFileStream.Create(FileName, fmCreate or fmShareExclusive);
1010	<	try
1011	<	SaveToStream(fs);
1012	<	finally
1013	<	fs.Free;
1014	<	end;
1015	<	end;
1016	<
1017	<	procedure TIBXSQLVAR.SaveToStream(Stream: TStream);
1018	<	var
1019	<	bs: TIBBlobStream;
1020	<	begin
1021	<	bs := TIBBlobStream.Create;
1022	<	try
1023	<	bs.Mode := bmRead;
1024	<	bs.Database := FSQL.Database;
1025	<	bs.Transaction := FSQL.Transaction;
1026	<	bs.BlobID := AsQuad;
1027	<	bs.SaveToStream(Stream);
1028	<	finally
1029	<	bs.Free;
1030	<	end;
1031	<	end;
1032	<
1033	<	function TIBXSQLVAR.GetSize: Integer;
1034	<	begin
1035	<	result := FXSQLVAR^.sqllen;
1036	<	end;
1037	<
1038	<	function TIBXSQLVAR.GetSQLType: Integer;
1039	<	begin
1040	<	result := FXSQLVAR^.sqltype and (not 1);
1041	<	end;
1042	<
1043	<	procedure TIBXSQLVAR.SetAsBoolean(AValue: boolean);
1044	<	var
1045	<	i: Integer;
1046	<	begin
1047	<	if FUniqueName then
1048	<	xSetAsBoolean(AValue)
1049	<	else
1050	<	for i := 0 to FParent.FCount - 1 do
1051	<	if FParent[i].FName = FName then
1052	<	FParent[i].xSetAsBoolean(AValue);
1053	<	end;
1054	<
1055	<	procedure TIBXSQLVAR.xSetAsCurrency(Value: Currency);
1056	<	begin
1057	<	if IsNullable then
1058	<	IsNull := False;
1059	<	FXSQLVAR^.sqltype := SQL_INT64 or (FXSQLVAR^.sqltype and 1);
1060	<	FXSQLVAR^.sqlscale := -4;
1061	<	FXSQLVAR^.sqllen := SizeOf(Int64);
1062	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1063	<	PCurrency(FXSQLVAR^.sqldata)^ := Value;
1064	<	FModified := True;
1065	<	end;
1066	<
1067	<	procedure TIBXSQLVAR.SetAsCurrency(Value: Currency);
1068	<	var
1069	<	i: Integer;
1070	<	begin
1071	<	if FSQL.Database.SQLDialect < 3 then
1072	<	AsDouble := Value
1073	<	else
1074	<	begin
1075	<
1076	<	if FUniqueName then
1077	<	xSetAsCurrency(Value)
1078	<	else
1079	<	for i := 0 to FParent.FCount - 1 do
1080	<	if FParent[i].FName = FName then
1081	<	FParent[i].xSetAsCurrency(Value);
1082	<	end;
1083	<	end;
1084	<
1085	<	procedure TIBXSQLVAR.xSetAsInt64(Value: Int64);
1086	<	begin
1087	<	if IsNullable then
1088	<	IsNull := False;
1089	<
1090	<	FXSQLVAR^.sqltype := SQL_INT64 or (FXSQLVAR^.sqltype and 1);
1091	<	FXSQLVAR^.sqlscale := 0;
1092	<	FXSQLVAR^.sqllen := SizeOf(Int64);
1093	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1094	<	PInt64(FXSQLVAR^.sqldata)^ := Value;
1095	<	FModified := True;
1096	<	end;
1097	<
1098	<	procedure TIBXSQLVAR.SetAsInt64(Value: Int64);
1099	<	var
1100	<	i: Integer;
1101	<	begin
1102	<	if FUniqueName then
1103	<	xSetAsInt64(Value)
1104	<	else
1105	<	for i := 0 to FParent.FCount - 1 do
1106	<	if FParent[i].FName = FName then
1107	<	FParent[i].xSetAsInt64(Value);
1108	<	end;
1109	<
1110	<	procedure TIBXSQLVAR.xSetAsDate(Value: TDateTime);
1111	<	var
1112	<	tm_date: TCTimeStructure;
1113	<	Yr, Mn, Dy: Word;
1114	<	begin
1115	<	if IsNullable then
1116	<	IsNull := False;
1117	<
1118	<	FXSQLVAR^.sqltype := SQL_TYPE_DATE or (FXSQLVAR^.sqltype and 1);
1119	<	DecodeDate(Value, Yr, Mn, Dy);
1120	<	with tm_date do begin
1121	<	tm_sec := 0;
1122	<	tm_min := 0;
1123	<	tm_hour := 0;
1124	<	tm_mday := Dy;
1125	<	tm_mon := Mn - 1;
1126	<	tm_year := Yr - 1900;
1127	<	end;
1128	<	FXSQLVAR^.sqllen := SizeOf(ISC_DATE);
1129	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1130	<	isc_encode_sql_date(@tm_date, PISC_DATE(FXSQLVAR^.sqldata));
1131	<	FModified := True;
1132	<	end;
1133	<
1134	<	procedure TIBXSQLVAR.SetAsDate(Value: TDateTime);
1135	<	var
1136	<	i: Integer;
1137	<	begin
1138	<	if FSQL.Database.SQLDialect < 3 then
1139	<	begin
1140	<	AsDateTime := Value;
1141	<	exit;
1142	<	end;
1143	<
1144	<	if FUniqueName then
1145	<	xSetAsDate(Value)
1146	<	else
1147	<	for i := 0 to FParent.FCount - 1 do
1148	<	if FParent[i].FName = FName then
1149	<	FParent[i].xSetAsDate(Value);
1150	<	end;
1151	<
1152	<	procedure TIBXSQLVAR.xSetAsTime(Value: TDateTime);
1153	<	var
1154	<	tm_date: TCTimeStructure;
1155	<	Hr, Mt, S, Ms: Word;
1156	<	begin
1157	<	if IsNullable then
1158	<	IsNull := False;
1159	<
1160	<	FXSQLVAR^.sqltype := SQL_TYPE_TIME or (FXSQLVAR^.sqltype and 1);
1161	<	DecodeTime(Value, Hr, Mt, S, Ms);
1162	<	with tm_date do begin
1163	<	tm_sec := S;
1164	<	tm_min := Mt;
1165	<	tm_hour := Hr;
1166	<	tm_mday := 0;
1167	<	tm_mon := 0;
1168	<	tm_year := 0;
1169	<	end;
1170	<	FXSQLVAR^.sqllen := SizeOf(ISC_TIME);
1171	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1172	<	isc_encode_sql_time(@tm_date, PISC_TIME(FXSQLVAR^.sqldata));
1173	<	if Ms > 0 then
1174	<	Inc(PISC_TIME(FXSQLVAR^.sqldata)^,Ms*10);
1175	<	FModified := True;
1176	<	end;
1177	<
1178	<	procedure TIBXSQLVAR.SetAsTime(Value: TDateTime);
1179	<	var
1180	<	i: Integer;
1181	<	begin
1182	<	if FSQL.Database.SQLDialect < 3 then
1183	<	begin
1184	<	AsDateTime := Value;
1185	<	exit;
1186	<	end;
1187	<
1188	<	if FUniqueName then
1189	<	xSetAsTime(Value)
1190	<	else
1191	<	for i := 0 to FParent.FCount - 1 do
1192	<	if FParent[i].FName = FName then
1193	<	FParent[i].xSetAsTime(Value);
1194	<	end;
1195	<
1196	<	procedure TIBXSQLVAR.xSetAsDateTime(Value: TDateTime);
1197	<	var
1198	<	tm_date: TCTimeStructure;
1199	<	Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
1200	<	begin
1201	<	if IsNullable then
1202	<	IsNull := False;
1203	<
1204	<	FXSQLVAR^.sqltype := SQL_TIMESTAMP or (FXSQLVAR^.sqltype and 1);
1205	<	DecodeDate(Value, Yr, Mn, Dy);
1206	<	DecodeTime(Value, Hr, Mt, S, Ms);
1207	<	with tm_date do begin
1208	<	tm_sec := S;
1209	<	tm_min := Mt;
1210	<	tm_hour := Hr;
1211	<	tm_mday := Dy;
1212	<	tm_mon := Mn - 1;
1213	<	tm_year := Yr - 1900;
1214	<	end;
1215	<	FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1216	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1217	<	isc_encode_date(@tm_date, PISC_QUAD(FXSQLVAR^.sqldata));
1218	<	if Ms > 0 then
1219	<	Inc(PISC_TIMESTAMP(FXSQLVAR^.sqldata)^.timestamp_time,Ms*10);
1220	<	FModified := True;
1221	<	end;
1222	<
1223	<	procedure TIBXSQLVAR.SetAsDateTime(Value: TDateTime);
1224	<	var
1225	<	i: Integer;
1226	<	begin
1227	<	if FUniqueName then
1228	<	xSetAsDateTime(value)
1229	<	else
1230	<	for i := 0 to FParent.FCount - 1 do
1231	<	if FParent[i].FName = FName then
1232	<	FParent[i].xSetAsDateTime(Value);
1233	<	end;
1234	<
1235	<	procedure TIBXSQLVAR.xSetAsDouble(Value: Double);
1236	<	begin
1237	<	if IsNullable then
1238	<	IsNull := False;
1239	<
1240	<	FXSQLVAR^.sqltype := SQL_DOUBLE or (FXSQLVAR^.sqltype and 1);
1241	<	FXSQLVAR^.sqllen := SizeOf(Double);
1242	<	FXSQLVAR^.sqlscale := 0;
1243	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1244	<	PDouble(FXSQLVAR^.sqldata)^ := Value;
1245	<	FModified := True;
1246	<	end;
1247	<
1248	<	procedure TIBXSQLVAR.SetAsDouble(Value: Double);
1249	<	var
1250	<	i: Integer;
1251	<	begin
1252	<	if FUniqueName then
1253	<	xSetAsDouble(Value)
1254	<	else
1255	<	for i := 0 to FParent.FCount - 1 do
1256	<	if FParent[i].FName = FName then
1257	<	FParent[i].xSetAsDouble(Value);
1258	<	end;
1259	<
1260	<	procedure TIBXSQLVAR.xSetAsFloat(Value: Float);
1261	<	begin
1262	<	if IsNullable then
1263	<	IsNull := False;
1264	<
1265	<	FXSQLVAR^.sqltype := SQL_FLOAT or (FXSQLVAR^.sqltype and 1);
1266	<	FXSQLVAR^.sqllen := SizeOf(Float);
1267	<	FXSQLVAR^.sqlscale := 0;
1268	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1269	<	PSingle(FXSQLVAR^.sqldata)^ := Value;
1270	<	FModified := True;
1271	<	end;
1272	<
1273	<	procedure TIBXSQLVAR.SetAsFloat(Value: Float);
1274	<	var
1275	<	i: Integer;
1276	<	begin
1277	<	if FUniqueName then
1278	<	xSetAsFloat(Value)
1279	<	else
1280	<	for i := 0 to FParent.FCount - 1 do
1281	<	if FParent[i].FName = FName then
1282	<	FParent[i].xSetAsFloat(Value);
1283	<	end;
1284	<
1285	<	procedure TIBXSQLVAR.xSetAsLong(Value: Long);
1286	<	begin
1287	<	if IsNullable then
1288	<	IsNull := False;
1289	<
1290	<	FXSQLVAR^.sqltype := SQL_LONG or (FXSQLVAR^.sqltype and 1);
1291	<	FXSQLVAR^.sqllen := SizeOf(Long);
1292	<	FXSQLVAR^.sqlscale := 0;
1293	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1294	<	PLong(FXSQLVAR^.sqldata)^ := Value;
1295	<	FModified := True;
1296	<	end;
1297	<
1298	<	procedure TIBXSQLVAR.SetAsLong(Value: Long);
1299	<	var
1300	<	i: Integer;
1301	<	begin
1302	<	if FUniqueName then
1303	<	xSetAsLong(Value)
1304	<	else
1305	<	for i := 0 to FParent.FCount - 1 do
1306	<	if FParent[i].FName = FName then
1307	<	FParent[i].xSetAsLong(Value);
1308	<	end;
1309	<
1310	<	procedure TIBXSQLVAR.xSetAsPointer(Value: Pointer);
1311	<	begin
1312	<	if IsNullable and (Value = nil) then
1313	<	IsNull := True
1314	<	else begin
1315	<	IsNull := False;
1316	<	FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1317	<	Move(Value^, FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen);
1318	<	end;
1319	<	FModified := True;
1320	<	end;
1321	<
1322	<	procedure TIBXSQLVAR.SetAsPointer(Value: Pointer);
1323	<	var
1324	<	i: Integer;
1325	<	begin
1326	<	if FUniqueName then
1327	<	xSetAsPointer(Value)
1328	<	else
1329	<	for i := 0 to FParent.FCount - 1 do
1330	<	if FParent[i].FName = FName then
1331	<	FParent[i].xSetAsPointer(Value);
1332	<	end;
251	>	Variants, IBSQLMonitor, FBMessages, IBCustomDataSet;
252
253	<	procedure TIBXSQLVAR.xSetAsQuad(Value: TISC_QUAD);
1335	<	begin
1336	<	if IsNullable then
1337	<	IsNull := False;
1338	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
1339	<	(FXSQLVAR^.sqltype and (not 1) <> SQL_ARRAY) then
1340	<	IBError(ibxeInvalidDataConversion, [nil]);
1341	<	FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1342	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1343	<	PISC_QUAD(FXSQLVAR^.sqldata)^ := Value;
1344	<	FModified := True;
1345	<	end;
1346	<
1347	<	procedure TIBXSQLVAR.SetAsQuad(Value: TISC_QUAD);
253	>	procedure IBAlloc(var P; OldSize, NewSize: Integer);
254		var
255		i: Integer;
256		begin
257	<	if FUniqueName then
258	<	xSetAsQuad(Value)
1353	<	else
1354	<	for i := 0 to FParent.FCount - 1 do
1355	<	if FParent[i].FName = FName then
1356	<	FParent[i].xSetAsQuad(Value);
1357	<	end;
1358	<
1359	<	procedure TIBXSQLVAR.xSetAsShort(Value: Short);
1360	<	begin
1361	<	if IsNullable then
1362	<	IsNull := False;
1363	<
1364	<	FXSQLVAR^.sqltype := SQL_SHORT or (FXSQLVAR^.sqltype and 1);
1365	<	FXSQLVAR^.sqllen := SizeOf(Short);
1366	<	FXSQLVAR^.sqlscale := 0;
1367	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1368	<	PShort(FXSQLVAR^.sqldata)^ := Value;
1369	<	FModified := True;
1370	<	end;
1371	<
1372	<	procedure TIBXSQLVAR.SetAsShort(Value: Short);
1373	<	var
1374	<	i: Integer;
1375	<	begin
1376	<	if FUniqueName then
1377	<	xSetAsShort(Value)
1378	<	else
1379	<	for i := 0 to FParent.FCount - 1 do
1380	<	if FParent[i].FName = FName then
1381	<	FParent[i].xSetAsShort(Value);
1382	<	end;
1383	<
1384	<	procedure TIBXSQLVAR.xSetAsString(Value: String);
1385	<	var
1386	<	stype: Integer;
1387	<	ss: TStringStream;
1388	<
1389	<	procedure SetStringValue;
1390	<	var
1391	<	i: Integer;
1392	<	begin
1393	<	if (FXSQLVAR^.sqlname = 'DB_KEY') or {do not localize}
1394	<	(FXSQLVAR^.sqlname = 'RDB$DB_KEY') then {do not localize}
1395	<	Move(Value[1], FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen)
1396	<	else begin
1397	<	FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1398	<	FXSQLVAR^.sqllen := Length(Value);
1399	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen + 1);
1400	<	if (Length(Value) > 0) then
1401	<	Move(Value[1], FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen);
1402	<	end;
1403	<	FModified := True;
1404	<	end;
1405	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
1406	<	var rs: RawByteString;
1407	<	codepage: TSystemCodePage;
1408	<	{$ENDIF}
1409	<	begin
1410	<	if IsNullable then
1411	<	IsNull := False;
1412	<
1413	<	stype := FXSQLVAR^.sqltype and (not 1);
1414	<
1415	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
1416	<	codepage := GetCodePage;
1417	<	if (codepage <> CP_NONE) and (StringCodePage(Value) <> codepage) then
1418	<	begin
1419	<	rs := Value;
1420	<	SetCodePage(rs,codepage,true);
1421	<	Value := rs;
1422	<	end;
1423	<	{$ENDIF}
1424	<
1425	<	if (stype = SQL_TEXT) or (stype = SQL_VARYING) then
1426	<	SetStringValue
1427	<	else begin
1428	<	if (stype = SQL_BLOB) then
1429	<	begin
1430	<	ss := TStringStream.Create(Value);
1431	<	try
1432	<	LoadFromStream(ss);
1433	<	finally
1434	<	ss.Free;
1435	<	end;
1436	<	end
1437	<	else if Value = '' then
1438	<	IsNull := True
1439	<	else if (stype = SQL_TIMESTAMP) or (stype = SQL_TYPE_DATE) or
1440	<	(stype = SQL_TYPE_TIME) then
1441	<	xSetAsDateTime(StrToDateTime(Value))
1442	<	else
1443	<	SetStringValue;
1444	<	end;
1445	<	end;
1446	<
1447	<	procedure TIBXSQLVAR.SetAsString(Value: String);
1448	<	var
1449	<	i: integer;
1450	<	begin
1451	<	if FUniqueName then
1452	<	xSetAsString(Value)
1453	<	else
1454	<	for i := 0 to FParent.FCount - 1 do
1455	<	if FParent[i].FName = FName then
1456	<	FParent[i].xSetAsString(Value);
1457	<	end;
1458	<
1459	<	procedure TIBXSQLVAR.xSetAsVariant(Value: Variant);
1460	<	begin
1461	<	if VarIsNull(Value) then
1462	<	IsNull := True
1463	<	else case VarType(Value) of
1464	<	varEmpty, varNull:
1465	<	IsNull := True;
1466	<	varSmallint, varInteger, varByte,
1467	<	varWord, varShortInt:
1468	<	AsLong := Value;
1469	<	varInt64:
1470	<	AsInt64 := Value;
1471	<	varSingle, varDouble:
1472	<	AsDouble := Value;
1473	<	varCurrency:
1474	<	AsCurrency := Value;
1475	<	varBoolean:
1476	<	AsBoolean := Value;
1477	<	varDate:
1478	<	AsDateTime := Value;
1479	<	varOleStr, varString:
1480	<	AsString := Value;
1481	<	varArray:
1482	<	IBError(ibxeNotSupported, [nil]);
1483	<	varByRef, varDispatch, varError, varUnknown, varVariant:
1484	<	IBError(ibxeNotPermitted, [nil]);
1485	<	end;
1486	<	end;
1487	<
1488	<	procedure TIBXSQLVAR.SetAsVariant(Value: Variant);
1489	<	var
1490	<	i: integer;
1491	<	begin
1492	<	if FUniqueName then
1493	<	xSetAsVariant(Value)
1494	<	else
1495	<	for i := 0 to FParent.FCount - 1 do
1496	<	if FParent[i].FName = FName then
1497	<	FParent[i].xSetAsVariant(Value);
1498	<	end;
1499	<
1500	<	procedure TIBXSQLVAR.xSetAsXSQLVAR(Value: PXSQLVAR);
1501	<	var
1502	<	sqlind: PShort;
1503	<	sqldata: PChar;
1504	<	local_sqllen: Integer;
1505	<	begin
1506	<	sqlind := FXSQLVAR^.sqlind;
1507	<	sqldata := FXSQLVAR^.sqldata;
1508	<	Move(Value^, FXSQLVAR^, SizeOf(TXSQLVAR));
1509	<	FXSQLVAR^.sqlind := sqlind;
1510	<	FXSQLVAR^.sqldata := sqldata;
1511	<	if (Value^.sqltype and 1 = 1) then
1512	<	begin
1513	<	if (FXSQLVAR^.sqlind = nil) then
1514	<	IBAlloc(FXSQLVAR^.sqlind, 0, SizeOf(Short));
1515	<	FXSQLVAR^.sqlind^ := Value^.sqlind^;
1516	<	end
1517	<	else
1518	<	if (FXSQLVAR^.sqlind <> nil) then
1519	<	ReallocMem(FXSQLVAR^.sqlind, 0);
1520	<	if ((FXSQLVAR^.sqltype and (not 1)) = SQL_VARYING) then
1521	<	local_sqllen := FXSQLVAR^.sqllen + 2
1522	<	else
1523	<	local_sqllen := FXSQLVAR^.sqllen;
1524	<	FXSQLVAR^.sqlscale := Value^.sqlscale;
1525	<	IBAlloc(FXSQLVAR^.sqldata, 0, local_sqllen);
1526	<	Move(Value^.sqldata[0], FXSQLVAR^.sqldata[0], local_sqllen);
1527	<	FModified := True;
1528	<	end;
1529	<
1530	<	procedure TIBXSQLVAR.SetAsXSQLVAR(Value: PXSQLVAR);
1531	<	var
1532	<	i: Integer;
1533	<	begin
1534	<	if FUniqueName then
1535	<	xSetAsXSQLVAR(Value)
1536	<	else
1537	<	for i := 0 to FParent.FCount - 1 do
1538	<	if FParent[i].FName = FName then
1539	<	FParent[i].xSetAsXSQLVAR(Value);
1540	<	end;
1541	<
1542	<	procedure TIBXSQLVAR.xSetIsNull(Value: Boolean);
1543	<	begin
1544	<	if Value then
1545	<	begin
1546	<	if not IsNullable then
1547	<	IsNullable := True;
1548	<
1549	<	if Assigned(FXSQLVAR^.sqlind) then
1550	<	FXSQLVAR^.sqlind^ := -1;
1551	<	FModified := True;
1552	<	end
1553	<	else
1554	<	if ((not Value) and IsNullable) then
1555	<	begin
1556	<	if Assigned(FXSQLVAR^.sqlind) then
1557	<	FXSQLVAR^.sqlind^ := 0;
1558	<	FModified := True;
1559	<	end;
1560	<	end;
1561	<
1562	<	procedure TIBXSQLVAR.SetIsNull(Value: Boolean);
1563	<	var
1564	<	i: Integer;
1565	<	begin
1566	<	if FUniqueName then
1567	<	xSetIsNull(Value)
1568	<	else
1569	<	for i := 0 to FParent.FCount - 1 do
1570	<	if FParent[i].FName = FName then
1571	<	FParent[i].xSetIsNull(Value);
1572	<	end;
1573	<
1574	<	procedure TIBXSQLVAR.xSetIsNullable(Value: Boolean);
1575	<	begin
1576	<	if (Value <> IsNullable) then
1577	<	begin
1578	<	if Value then
1579	<	begin
1580	<	FXSQLVAR^.sqltype := FXSQLVAR^.sqltype or 1;
1581	<	IBAlloc(FXSQLVAR^.sqlind, 0, SizeOf(Short));
1582	<	end
1583	<	else
1584	<	begin
1585	<	FXSQLVAR^.sqltype := FXSQLVAR^.sqltype and (not 1);
1586	<	ReallocMem(FXSQLVAR^.sqlind, 0);
1587	<	end;
1588	<	end;
1589	<	end;
1590	<
1591	<	procedure TIBXSQLVAR.SetIsNullable(Value: Boolean);
1592	<	var
1593	<	i: Integer;
1594	<	begin
1595	<	if FUniqueName then
1596	<	xSetIsNullable(Value)
1597	<	else
1598	<	for i := 0 to FParent.FCount - 1 do
1599	<	if FParent[i].FName = FName then
1600	<	FParent[i].xSetIsNullable(Value);
1601	<	end;
1602	<
1603	<	procedure TIBXSQLVAR.xSetAsBoolean(AValue: boolean);
1604	<	begin
1605	<	if IsNullable then
1606	<	IsNull := False;
1607	<
1608	<	FXSQLVAR^.sqltype := SQL_BOOLEAN;
1609	<	FXSQLVAR^.sqllen := 1;
1610	<	FXSQLVAR^.sqlscale := 0;
1611	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1612	<	if AValue then
1613	<	PByte(FXSQLVAR^.sqldata)^ := ISC_TRUE
1614	<	else
1615	<	PByte(FXSQLVAR^.sqldata)^ := ISC_FALSE;
1616	<	FModified := True;
1617	<	end;
1618	<
1619	<	procedure TIBXSQLVAR.Clear;
1620	<	begin
1621	<	IsNull := true;
1622	<	end;
1623	<
1624	<	function TIBXSQLVAR.GetCharSetID: integer;
1625	<	var stype: Integer;
1626	<	begin
1627	<	if FCharSetID = -1 then
1628	<	begin
1629	<	FCharSetID := 0;
1630	<	stype := FXSQLVAR^.sqltype and (not 1);
1631	<	case stype of
1632	<	SQL_TEXT,SQL_VARYING:
1633	<	FCharSetID := FXSQLVAR^.sqlsubtype and $FF;
1634	<
1635	<	SQL_BLOB:
1636	<	if (FXSQLVAR^.sqlsubtype = 1) and (strpas(FXSQLVAR^.relname) <> '') and
1637	<	(strpas(FXSQLVAR^.sqlname) <> '') then
1638	<	FCharSetID := GetBlobCharSetID(FParent.FSQL.Database.Handle,FParent.FSQL.Transaction.Handle,
1639	<	@(FXSQLVAR^.relname),@(FXSQLVAR^.sqlname));
1640	<	end;
1641	<
1642	<	if (FCharSetID > 1) and (FParent.FSQL.Database.DefaultCharSetName <> '')
1643	<	and (FParent.FSQL.Database.DefaultCharSetID > 1) then
1644	<	FCharSetID := FParent.FSQL.Database.DefaultCharSetID;
1645	<	end;
1646	<	Result := FCharSetID;
1647	<	end;
1648	<
1649	<	{$IFDEF HAS_ANSISTRING_CODEPAGE}
1650	<	function TIBXSQLVAR.GetCodePage: TSystemCodePage;
1651	<	begin
1652	<	TFirebirdCharacterSets.CharSetID2CodePage(GetCharSetID,Result);
1653	<	end;
1654	<	{$ENDIF}
1655	<
1656	<
1657	<	{ TIBXSQLDA }
1658	<	constructor TIBXSQLDA.Create(Query: TIBSQL; sqldaType: TIBXSQLDAType);
1659	<	begin
1660	<	inherited Create;
1661	<	FSQL := Query;
1662	<	FSize := 0;
1663	<	FUniqueRelationName := '';
1664	<	FInputSQLDA := sqldaType = daInput;
1665	<	end;
1666	<
1667	<	destructor TIBXSQLDA.Destroy;
1668	<	var
1669	<	i: Integer;
1670	<	begin
1671	<	if FXSQLDA <> nil then
1672	<	begin
1673	<	for i := 0 to FSize - 1 do
1674	<	begin
1675	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqldata);
1676	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqlind);
1677	<	FXSQLVARs[i].Free ;
1678	<	end;
1679	<	FreeMem(FXSQLDA);
1680	<	FXSQLDA := nil;
1681	<	FXSQLVARs := nil;
1682	<	end;
1683	<	inherited Destroy;
1684	<	end;
1685	<
1686	<	procedure TIBXSQLDA.SetParamName(FieldName: String; Idx: Integer;
1687	<	UniqueName: boolean);
1688	<	var
1689	<	fn: string;
1690	<	begin
1691	<	{$ifdef UseCaseSensitiveParamName}
1692	<	FXSQLVARs[Idx].FName := AnsiUpperCase(FieldName);
1693	<	{$else}
1694	<	FXSQLVARs[Idx].FName := FieldName;
1695	<	{$endif}
1696	<	FXSQLVARs[Idx].FIndex := Idx;
1697	<	FXSQLVARs[Idx].FUniqueName :=  UniqueName
1698	<	end;
1699	<
1700	<	function TIBXSQLDA.GetModified: Boolean;
1701	<	var
1702	<	i: Integer;
1703	<	begin
1704	<	result := False;
1705	<	for i := 0 to FCount - 1 do
1706	<	if FXSQLVARs[i].Modified then
1707	<	begin
1708	<	result := True;
1709	<	exit;
1710	<	end;
1711	<	end;
1712	<
1713	<	function TIBXSQLDA.GetRecordSize: Integer;
1714	<	begin
1715	<	result := SizeOf(TIBXSQLDA) + XSQLDA_LENGTH(FSize);
1716	<	end;
1717	<
1718	<	function TIBXSQLDA.GetXSQLDA: PXSQLDA;
1719	<	begin
1720	<	result := FXSQLDA;
1721	<	end;
1722	<
1723	<	function TIBXSQLDA.GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
1724	<	begin
1725	<	if (Idx < 0) or (Idx >= FCount) then
1726	<	IBError(ibxeXSQLDAIndexOutOfRange, [nil]);
1727	<	result := FXSQLVARs[Idx]
1728	<	end;
1729	<
1730	<	function TIBXSQLDA.ByName(Idx: String): TIBXSQLVAR;
1731	<	begin
1732	<	result := GetXSQLVARByName(Idx);
1733	<	if result = nil then
1734	<	IBError(ibxeFieldNotFound, [Idx]);
1735	<	end;
1736	<
1737	<	function TIBXSQLDA.GetXSQLVARByName(Idx: String): TIBXSQLVAR;
1738	<	var
1739	<	s: String;
1740	<	i: Integer;
1741	<	begin
1742	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
1743	<	s := FormatIdentifierValueNC(FSQL.Database.SQLDialect, Idx);
1744	<	{$else}
1745	<	{$ifdef UseCaseSensitiveParamName}
1746	<	s := AnsiUpperCase(Idx);
1747	<	{$else}
1748	<	s := Idx;
1749	<	{$endif}
1750	<	{$endif}
1751	<	for i := 0 to FCount - 1 do
1752	<	if Vars[i].FName = s then
1753	<	begin
1754	<	Result := FXSQLVARs[i];
1755	<	Exit;
1756	<	end;
1757	<	Result := nil;
1758	<	end;
1759	<
1760	<	procedure TIBXSQLDA.Initialize;
1761	<
1762	<	function VarByName(idx: string; limit: integer): TIBXSQLVAR;
1763	<	var
1764	<	k: integer;
1765	<	begin
1766	<	for k := 0 to limit do
1767	<	if FXSQLVARs[k].FName = idx then
1768	<	begin
1769	<	Result := FXSQLVARs[k];
1770	<	Exit;
1771	<	end;
1772	<	Result := nil;
1773	<	end;
1774	<
1775	<	var
1776	<	i, j, j_len: Integer;
1777	<	st: String;
1778	<	bUnique: Boolean;
1779	<	sBaseName: string;
1780	<	begin
1781	<	bUnique := True;
1782	<	if FXSQLDA <> nil then
1783	<	begin
1784	<	for i := 0 to FCount - 1 do
1785	<	begin
1786	<	FXSQLVARs[i].FCharSetID := -1;
1787	<	with FXSQLVARs[i].Data^ do
1788	<	begin
1789	<
1790	<	{First get the unique relation name, if any}
1791	<
1792	<	if bUnique and (strpas(relname) <> '') then
1793	<	begin
1794	<	if FUniqueRelationName = '' then
1795	<	FUniqueRelationName := strpas(relname)
1796	<	else
1797	<	if strpas(relname) <> FUniqueRelationName then
1798	<	begin
1799	<	FUniqueRelationName := '';
1800	<	bUnique := False;
1801	<	end;
1802	<	end;
1803	<
1804	<	{If an output SQLDA then copy the aliasnames to the FName list. Ensure
1805	<	that they are all upper case only and disambiguated.
1806	<	}
1807	<
1808	<	if not FInputSQLDA then
1809	<	begin
1810	<	st := Space2Underscore(AnsiUppercase(strpas(aliasname)));
1811	<	if st = '' then
1812	<	begin
1813	<	sBaseName := 'F_'; {do not localize}
1814	<	aliasname_length := 2;
1815	<	j := 1; j_len := 1;
1816	<	st := sBaseName + IntToStr(j);
1817	<	end
1818	<	else
1819	<	begin
1820	<	j := 0; j_len := 0;
1821	<	sBaseName := st;
1822	<	end;
1823	<
1824	<	{Look for other columns with the same name and make unique}
1825	<
1826	<	while VarByName(st,i-1) <> nil do
1827	<	begin
1828	<	Inc(j);
1829	<	j_len := Length(IntToStr(j));
1830	<	if j_len + Length(sBaseName) > 31 then
1831	<	st := Copy(sBaseName, 1, 31 - j_len) + IntToStr(j)
1832	<	else
1833	<	st := sBaseName + IntToStr(j);
1834	<	end;
1835	<
1836	<	FXSQLVARs[i].FName := st;
1837	<	end;
1838	<
1839	<	{Finally initialise the XSQLVAR}
1840	<
1841	<	FXSQLVARs[i].FIndex := i;
1842	<
1843	<	case sqltype and (not 1) of
1844	<	SQL_TEXT, SQL_TYPE_DATE, SQL_TYPE_TIME, SQL_TIMESTAMP,
1845	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD, SQL_SHORT, SQL_BOOLEAN,
1846	<	SQL_LONG, SQL_INT64, SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT: begin
1847	<	if (sqllen = 0) then
1848	<	{ Make sure you get a valid pointer anyway
1849	<	select '' from foo }
1850	<	IBAlloc(sqldata, 0, 1)
1851	<	else
1852	<	IBAlloc(sqldata, 0, sqllen)
1853	<	end;
1854	<	SQL_VARYING: begin
1855	<	IBAlloc(sqldata, 0, sqllen + 2);
1856	<	end;
1857	<	else
1858	<	IBError(ibxeUnknownSQLDataType, [sqltype and (not 1)])
1859	<	end;
1860	<	if (sqltype and 1 = 1) then
1861	<	IBAlloc(sqlind, 0, SizeOf(Short))
1862	<	else
1863	<	if (sqlind <> nil) then
1864	<	ReallocMem(sqlind, 0);
1865	<	end;
1866	<	end;
1867	<	end;
1868	<	end;
1869	<
1870	<	procedure TIBXSQLDA.SetCount(Value: Integer);
1871	<	var
1872	<	i, OldSize: Integer;
1873	<	p : PXSQLVAR;
1874	<	begin
1875	<	FCount := Value;
1876	<	if FCount = 0 then
1877	<	FUniqueRelationName := ''
1878	<	else
1879	<	begin
1880	<	if FSize > 0 then
1881	<	OldSize := XSQLDA_LENGTH(FSize)
1882	<	else
1883	<	OldSize := 0;
1884	<	if FCount > FSize then
1885	<	begin
1886	<	IBAlloc(FXSQLDA, OldSize, XSQLDA_LENGTH(FCount));
1887	<	SetLength(FXSQLVARs, FCount);
1888	<	FXSQLDA^.version := SQLDA_VERSION1;
1889	<	p := @FXSQLDA^.sqlvar[0];
1890	<	for i := 0 to FCount - 1 do
1891	<	begin
1892	<	if i >= FSize then
1893	<	FXSQLVARs[i] := TIBXSQLVAR.Create(self, FSQL);
1894	<	FXSQLVARs[i].FXSQLVAR := p;
1895	<	p := Pointer(PChar(p) + sizeof(FXSQLDA^.sqlvar));
1896	<	end;
1897	<	FSize := FCount;
1898	<	end;
1899	<	if FSize > 0 then
1900	<	begin
1901	<	FXSQLDA^.sqln := Value;
1902	<	FXSQLDA^.sqld := Value;
1903	<	end;
1904	<	end;
257	>	ReallocMem(Pointer(P), NewSize);
258	>	for i := OldSize to NewSize - 1 do PChar(P)[i] := #0;
259		end;
260
261		{ TIBOutputDelimitedFile }
#	Line 1947 | Line 301 | begin
301		begin
302		for i := 0 to Columns.Count - 1 do
303		if i = 0 then
304	<	st := strpas(Columns[i].Data^.aliasname)
304	>	st := Columns[i].GetAliasname
305		else
306	<	st := st + FColDelimiter + strpas(Columns[i].Data^.aliasname);
306	>	st := st + FColDelimiter + Columns[i].GetAliasname;
307		st := st + FRowDelimiter;
308		{$IFDEF UNIX}
309		if FHandle <> -1 then
#	Line 2140 | Line 494 | begin
494		for i := 0 to Columns.Count - 1 do
495		begin
496		{$IFDEF UNIX}
497	<	BytesWritten := FpWrite(FHandle,Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen);
497	>	BytesWritten := FpWrite(FHandle,Columns[i].GetAsPointer^, Columns[i].GetSize);
498		{$ELSE}
499	<	WriteFile(FHandle, Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen,
499	>	WriteFile(FHandle, Columns[i].GetAsPointer^, Columns[i].GetSize,
500		BytesWritten, nil);
501		{$ENDIF}
502	<	if BytesWritten <> DWORD(Columns[i].Data^.sqllen) then
502	>	if BytesWritten <> DWORD(Columns[i].GetSize) then
503		exit;
504		end;
505		result := True;
#	Line 2180 | Line 534 | begin
534		for i := 0 to Params.Count - 1 do
535		begin
536		{$IFDEF UNIX}
537	<	BytesRead := FpRead(FHandle,Params[i].Data^.sqldata^,Params[i].Data^.sqllen);
537	>	BytesRead := FpRead(FHandle,Params[i].GetAsPointer^,Params[i].GetSize);
538		{$ELSE}
539	<	ReadFile(FHandle, Params[i].Data^.sqldata^, Params[i].Data^.sqllen,
539	>	ReadFile(FHandle, Params[i].GetAsPointer^, Params[i].GetSize,
540		BytesRead, nil);
541		{$ENDIF}
542	<	if BytesRead <> DWORD(Params[i].Data^.sqllen) then
542	>	if BytesRead <> DWORD(Params[i].GetSize) then
543		exit;
544		end;
545		result := True;
#	Line 2212 | Line 566 | end;
566
567		{ TIBSQL }
568		constructor TIBSQL.Create(AOwner: TComponent);
2215	–	var  GUID : TGUID;
569		begin
570		inherited Create(AOwner);
2218	–	FIBLoaded := False;
2219	–	CheckIBLoaded;
2220	–	FIBLoaded := True;
571		FGenerateParamNames := False;
572		FGoToFirstRecordOnExecute := True;
573		FBase := TIBBase.Create(Self);
574		FBase.BeforeDatabaseDisconnect := DoBeforeDatabaseDisconnect;
575		FBase.BeforeTransactionEnd := BeforeTransactionEnd;
2226	–	FBOF := False;
2227	–	FEOF := False;
2228	–	FPrepared := False;
576		FRecordCount := 0;
577		FSQL := TStringList.Create;
578		TStringList(FSQL).OnChanging := SQLChanging;
579		TStringList(FSQL).OnChange := SQLChanged;
2233	–	FProcessedSQL := TStringList.Create;
2234	–	FHandle := nil;
2235	–	FSQLParams := TIBXSQLDA.Create(self,daInput);
2236	–	FSQLRecord := TIBXSQLDA.Create(self,daOutput);
2237	–	FSQLType := SQLUnknown;
580		FParamCheck := True;
2239	–	CreateGuid(GUID);
2240	–	FCursor := GUIDToString(GUID);
581		if AOwner is TIBDatabase then
582		Database := TIBDatabase(AOwner)
583		else
#	Line 2247 | Line 587 | end;
587
588		destructor TIBSQL.Destroy;
589		begin
590	<	if FIBLoaded then
591	<	begin
592	<	if (FOpen) then
2253	<	Close;
2254	<	if (FHandle <> nil) then
2255	<	FreeHandle;
2256	<	FSQL.Free;
2257	<	FProcessedSQL.Free;
2258	<	FBase.Free;
2259	<	FSQLParams.Free;
2260	<	FSQLRecord.Free;
2261	<	end;
590	>	FreeHandle;
591	>	FSQL.Free;
592	>	FBase.Free;
593		inherited Destroy;
594		end;
595
#	Line 2266 | Line 597 | procedure TIBSQL.BatchInput(InputObject:
597		begin
598		if not Prepared then
599		Prepare;
600	<	InputObject.FParams := Self.FSQLParams;
600	>	InputObject.FParams := Self.GetSQLParams;
601		InputObject.ReadyFile;
602	<	if FSQLType in [SQLInsert, SQLUpdate, SQLDelete, SQLExecProcedure] then
602	>	if GetSQLStatementType in [SQLInsert, SQLUpdate, SQLDelete, SQLExecProcedure] then
603		while InputObject.ReadParameters do
604		ExecQuery;
605		end;
#	Line 2278 | Line 609 | begin
609		CheckClosed;
610		if not Prepared then
611		Prepare;
612	<	if FSQLType = SQLSelect then begin
612	>	if GetSQLStatementType = SQLSelect then begin
613		try
614		ExecQuery;
615	<	OutputObject.FColumns := Self.FSQLRecord;
615	>	OutputObject.FColumns := Self.FResults;
616		OutputObject.ReadyFile;
617		if not FGoToFirstRecordOnExecute then
618		Next;
#	Line 2295 | Line 626 | end;
626
627		procedure TIBSQL.CheckClosed;
628		begin
629	<	if FOpen then IBError(ibxeSQLOpen, [nil]);
629	>	if FResultSet <> nil  then IBError(ibxeSQLOpen, [nil]);
630		end;
631
632		procedure TIBSQL.CheckOpen;
633		begin
634	<	if not FOpen then IBError(ibxeSQLClosed, [nil]);
634	>	if FResultSet = nil then IBError(ibxeSQLClosed, [nil]);
635		end;
636
637		procedure TIBSQL.CheckValidStatement;
638		begin
639		FBase.CheckTransaction;
640	<	if (FHandle = nil) then
640	>	if (FStatement = nil) then
641		IBError(ibxeInvalidStatementHandle, [nil]);
642		end;
643
644		procedure TIBSQL.Close;
2314	–	var
2315	–	isc_res: ISC_STATUS;
645		begin
646	<	try
647	<	if (FHandle <> nil) and (SQLType = SQLSelect) and FOpen then begin
648	<	isc_res := Call(
649	<	isc_dsql_free_statement(StatusVector, @FHandle, DSQL_close),
650	<	False);
651	<	if (StatusVector^ = 1) and (isc_res > 0) and
652	<	not CheckStatusVector(
2324	<	[isc_bad_stmt_handle, isc_dsql_cursor_close_err]) then
2325	<	IBDatabaseError;
2326	<	end;
2327	<	finally
2328	<	FEOF := False;
2329	<	FBOF := False;
2330	<	FOpen := False;
2331	<	FRecordCount := 0;
2332	<	end;
646	>	if FResults <> nil then
647	>	FResults.SetRetainInterfaces(false);
648	>	FResultSet := nil;
649	>	FResults := nil;
650	>	FBOF := false;
651	>	FEOF := false;
652	>	FRecordCount := 0;
653		end;
654
655	<	function TIBSQL.Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
655	>	function TIBSQL.GetFieldCount: integer;
656		begin
657	<	result := 0;
658	<	if Transaction <> nil then
2339	<	result := Transaction.Call(ErrCode, RaiseError)
657	>	if FResults <> nil then
658	>	Result := FResults.GetCount
659		else
660	<	if RaiseError and (ErrCode > 0) then
661	<	IBDataBaseError;
660	>	if FMetaData <> nil then
661	>	Result := FMetaData.GetCount
662	>	else
663	>	Result := 0;
664		end;
665
666	<	function TIBSQL.Current: TIBXSQLDA;
666	>	function TIBSQL.GetOpen: Boolean;
667		begin
668	<	result := FSQLRecord;
668	>	Result := FResultSet <> nil;
669		end;
670
671	<	function TIBSQL.GetFieldCount: integer;
671	>	function TIBSQL.GetPrepared: Boolean;
672	>	begin
673	>	Result := (FStatement <> nil) and FStatement.IsPrepared;
674	>	end;
675	>
676	>	function TIBSQL.GetSQLStatementType: TIBSQLStatementTypes;
677		begin
678	<	Result := FSQLRecord.Count
678	>	if FStatement = nil then
679	>	Result := SQLUnknown
680	>	else
681	>	Result := FStatement.GetSQLStatementType;
682		end;
683
684		procedure TIBSQL.SetUniqueParamNames(AValue: Boolean);
#	Line 2361 | Line 690 | end;
690
691		procedure TIBSQL.DoBeforeDatabaseDisconnect(Sender: TObject);
692		begin
693	<	if (FHandle <> nil) then begin
2365	<	Close;
2366	<	FreeHandle;
2367	<	end;
693	>	FreeHandle;
694		end;
695
696		procedure TIBSQL.ExecQuery;
697	+	{$IFDEF IBXQUERYSTATS}
698	+	var
699	+	stats: TPerfCounters;
700	+	{$ENDIF}
701	+	{$IFDEF IBXQUERYTIME}
702		var
703	<	fetch_res: ISC_STATUS;
703	>	tmsecs: comp;
704	>	{$ENDIF}
705		begin
706		CheckClosed;
707		if not Prepared then Prepare;
708		CheckValidStatement;
709	<	case FSQLType of
710	<	SQLSelect: begin
711	<	Call(isc_dsql_execute2(StatusVector,
712	<	TRHandle,
713	<	@FHandle,
714	<	Database.SQLDialect,
715	<	FSQLParams.AsXSQLDA,
716	<	nil), True);
717	<	Call(
718	<	isc_dsql_set_cursor_name(StatusVector, @FHandle, PChar(FCursor), 0),
719	<	True);
720	<	FOpen := True;
721	<	FBOF := True;
722	<	FEOF := False;
723	<	FRecordCount := 0;
724	<	if not (csDesigning in ComponentState) then
725	<	MonitorHook.SQLExecute(Self);
726	<	if FGoToFirstRecordOnExecute then
727	<	Next;
728	<	end;
729	<	SQLExecProcedure: begin
2398	<	fetch_res := Call(isc_dsql_execute2(StatusVector,
2399	<	TRHandle,
2400	<	@FHandle,
2401	<	Database.SQLDialect,
2402	<	FSQLParams.AsXSQLDA,
2403	<	FSQLRecord.AsXSQLDA), True);
2404	<	if not (csDesigning in ComponentState) then
2405	<	MonitorHook.SQLExecute(Self);
2406	<	(*      if (fetch_res <> 0) and (fetch_res <> isc_deadlock) then
2407	<	begin
2408	<	{ Sometimes a prepared stored procedure appears to get
2409	<	off sync on the server ....This code is meant to try
2410	<	to work around the problem simply by "retrying". This
2411	<	need to be reproduced and fixed.
2412	<	}
2413	<	isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
2414	<	PChar(FProcessedSQL.Text), 1, nil);
2415	<	Call(isc_dsql_execute2(StatusVector,
2416	<	TRHandle,
2417	<	@FHandle,
2418	<	Database.SQLDialect,
2419	<	FSQLParams.AsXSQLDA,
2420	<	FSQLRecord.AsXSQLDA), True);
2421	<	end;  *)
2422	<	end
2423	<	else
2424	<	Call(isc_dsql_execute(StatusVector,
2425	<	TRHandle,
2426	<	@FHandle,
2427	<	Database.SQLDialect,
2428	<	FSQLParams.AsXSQLDA), True);
2429	<	if not (csDesigning in ComponentState) then
2430	<	MonitorHook.SQLExecute(Self);
709	>	{$IFDEF IBXQUERYTIME}
710	>	tmsecs := TimeStampToMSecs(DateTimeToTimeStamp(Now));
711	>	{$ENDIF}
712	>	if SQLStatementType = SQLSelect then
713	>	begin
714	>	FResultSet := FStatement.OpenCursor;
715	>	FResults := FResultSet;
716	>	FResults.SetRetainInterfaces(true);
717	>	FBOF := True;
718	>	FEOF := False;
719	>	FRecordCount := 0;
720	>	if not (csDesigning in ComponentState) then
721	>	MonitorHook.SQLExecute(Self);
722	>	if FGoToFirstRecordOnExecute then
723	>	Next;
724	>	end
725	>	else
726	>	begin
727	>	FResults := FStatement.Execute;
728	>	if not (csDesigning in ComponentState) then
729	>	MonitorHook.SQLExecute(Self);
730		end;
731	+	{$IFDEF IBXQUERYTIME}
732	+	writeln('Executing ',FStatement.GetSQLText,
733	+	' Response time= ',Format('%f msecs',[TimeStampToMSecs(DateTimeToTimeStamp(Now)) - tmsecs]));
734	+	{$ENDIF}
735	+	{$IFDEF IBXQUERYSTATS}
736	+	if FStatement.GetPerfStatistics(stats) then
737	+	writeln('Executing ',FStatement.GetSQLText,
738	+	' Elapsed time= ', FormatFloat('#0.000',stats[psRealTime]/1000),' sec');
739	+	{$ENDIF}
740		FBase.DoAfterExecQuery(self);
741	<	//  writeln('Rows Affected = ',RowsAffected);
741	>	end;
742	>
743	>	function TIBSQL.HasField(FieldName: String): boolean;
744	>	begin
745	>	if FResults = nil then
746	>	IBError(ibxeNoFieldAccess,[nil]);
747	>
748	>	Result := FResults.ByName(FieldName) <> nil;
749		end;
750
751		function TIBSQL.GetEOF: Boolean;
752		begin
753	<	result := FEOF or not FOpen;
753	>	result := FEOF or (FResultSet = nil);
754		end;
755
756	<	function TIBSQL.FieldByName(FieldName: String): TIBXSQLVAR;
2442	<	var
2443	<	i: Integer;
756	>	function TIBSQL.FieldByName(FieldName: String): ISQLData;
757		begin
758	<	i := GetFieldIndex(FieldName);
759	<	if (i < 0) then
758	>	if FResults = nil then
759	>	IBError(ibxeNoFieldAccess,[nil]);
760	>
761	>	Result := FResults.ByName(FieldName);
762	>
763	>	if Result = nil then
764		IBError(ibxeFieldNotFound, [FieldName]);
2448	–	result := GetFields(i);
765		end;
766
767	<	function TIBSQL.ParamByName(ParamName: String): TIBXSQLVAR;
767	>	function TIBSQL.ParamByName(ParamName: String): ISQLParam;
768		begin
769		Result := Params.ByName(ParamName);
770		end;
771
772	<	function TIBSQL.GetFields(const Idx: Integer): TIBXSQLVAR;
772	>	function TIBSQL.GetFields(const Idx: Integer): ISQLData;
773		begin
774	<	if (Idx < 0) or (Idx >= FSQLRecord.Count) then
774	>	if FResults = nil then
775	>	IBError(ibxeNoFieldAccess,[nil]);
776	>
777	>	if (Idx < 0) or (Idx >= FResults.GetCount) then
778		IBError(ibxeFieldNotFound, [IntToStr(Idx)]);
779	<	result := FSQLRecord[Idx];
779	>	result := FResults[Idx];
780		end;
781
782		function TIBSQL.GetFieldIndex(FieldName: String): Integer;
783	+	var Field: IColumnMetaData;
784		begin
785	<	if (FSQLRecord.GetXSQLVarByName(FieldName) = nil) then
785	>	if FMetaData = nil then
786	>	IBError(ibxeNoFieldAccess,[nil]);
787	>
788	>	Field := FMetaData.ByName(FieldName);
789	>
790	>	if Field = nil then
791		result := -1
792		else
793	<	result := FSQLRecord.GetXSQLVarByName(FieldName).Index;
793	>	result := Field.GetIndex;
794		end;
795
796	<	function TIBSQL.Next: TIBXSQLDA;
2472	<	var
2473	<	fetch_res: ISC_STATUS;
796	>	function TIBSQL.Next: boolean;
797		begin
798	<	result := nil;
799	<	if not FEOF then begin
798	>	result := false;
799	>	if not FEOF then
800	>	begin
801		CheckOpen;
802	<	{ Go to the next record... }
803	<	fetch_res :=
804	<	Call(isc_dsql_fetch(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.AsXSQLDA), False);
805	<	if (fetch_res = 100) or (CheckStatusVector([isc_dsql_cursor_err])) then begin
806	<	FEOF := True;
807	<	end else if (fetch_res > 0) then begin
808	<	try
809	<	IBDataBaseError;
810	<	except
2487	<	Close;
2488	<	raise;
2489	<	end;
2490	<	end else begin
802	>	try
803	>	Result := FResultSet.FetchNext;
804	>	except
805	>	Close;
806	>	raise;
807	>	end;
808	>
809	>	if Result then
810	>	begin
811		Inc(FRecordCount);
812		FBOF := False;
813	<	result := FSQLRecord;
814	<	end;
813	>	end
814	>	else
815	>	FEOF := true;
816	>
817		if not (csDesigning in ComponentState) then
818		MonitorHook.SQLFetch(Self);
819		end;
820		end;
821
822		procedure TIBSQL.FreeHandle;
2501	–	var
2502	–	isc_res: ISC_STATUS;
823		begin
824	<	try
825	<	{ The following two lines merely set the SQLDA count
826	<	variable FCount to 0, but do not deallocate
827	<	That way the allocations can be reused for
828	<	a new query sring in the same SQL instance }
829	<	FSQLRecord.Count := 0;
830	<	FSQLParams.Count := 0;
831	<	if FHandle <> nil then begin
2512	<	isc_res :=
2513	<	Call(isc_dsql_free_statement(StatusVector, @FHandle, DSQL_drop), False);
2514	<	if (StatusVector^ = 1) and (isc_res > 0) and (isc_res <> isc_bad_stmt_handle) then
2515	<	IBDataBaseError;
2516	<	end;
2517	<	finally
2518	<	FPrepared := False;
2519	<	FHandle := nil;
2520	<	end;
824	>	if FStatement <> nil then
825	>	FStatement.SetRetainInterfaces(false);
826	>	Close;
827	>	FStatement := nil;
828	>	FResults := nil;
829	>	FResultSet := nil;
830	>	FMetaData := nil;
831	>	FSQLParams := nil;
832		end;
833
834		function TIBSQL.GetDatabase: TIBDatabase;
#	Line 2525 | Line 836 | begin
836		result := FBase.Database;
837		end;
838
2528	–	function TIBSQL.GetDBHandle: PISC_DB_HANDLE;
2529	–	begin
2530	–	result := FBase.DBHandle;
2531	–	end;
2532	–
839		function TIBSQL.GetPlan: String;
2534	–	var
2535	–	result_buffer: array[0..16384] of Char;
2536	–	result_length, i: Integer;
2537	–	info_request: Char;
840		begin
841		if (not Prepared) or
842	<	(not (FSQLType in [SQLSelect, SQLSelectForUpdate,
842	>	(not (GetSQLStatementType in [SQLSelect, SQLSelectForUpdate,
843		{TODO: SQLExecProcedure, }
844		SQLUpdate, SQLDelete])) then
845		result := ''
846	<	else begin
847	<	info_request := isc_info_sql_get_plan;
2546	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 2, @info_request,
2547	<	SizeOf(result_buffer), result_buffer), True);
2548	<	if (result_buffer[0] <> isc_info_sql_get_plan) then
2549	<	IBError(ibxeUnknownError, [nil]);
2550	<	result_length := isc_vax_integer(@result_buffer[1], 2);
2551	<	SetString(result, nil, result_length);
2552	<	for i := 1 to result_length do
2553	<	result[i] := result_buffer[i + 2];
2554	<	result := Trim(result);
2555	<	end;
846	>	else
847	>	Result := FStatement.GetPlan;
848		end;
849
850		function TIBSQL.GetRecordCount: Integer;
851		begin
852	<	result := FRecordCount;
852	>	Result := FRecordCount;
853		end;
854
855		function TIBSQL.GetRowsAffected: Integer;
856		var
857	<	info_request: Char;
2566	<	RB: TResultBuffer;
857	>	SelectCount, InsertCount, UpdateCount, DeleteCount: integer;
858		begin
859		if not Prepared then
860	<	result := -1
861	<	else begin
862	<	RB := TResultBuffer.Create;
863	<	try
864	<	info_request := isc_info_sql_records;
2574	<	if isc_dsql_sql_info(StatusVector, @FHandle, 1, @info_request,
2575	<	RB.Size, RB.buffer) > 0 then
2576	<	IBDatabaseError;
2577	<	case SQLType of
2578	<	SQLInsert, SQLUpdate: {Covers Insert or Update as well as individual update}
2579	<	Result := RB.GetValue(isc_info_sql_records, isc_info_req_insert_count)+
2580	<	RB.GetValue(isc_info_sql_records, isc_info_req_update_count);
2581	<	SQLDelete:
2582	<	Result := RB.GetValue(isc_info_sql_records, isc_info_req_delete_count);
2583	<	SQLExecProcedure:
2584	<	Result :=  RB.GetValue(isc_info_sql_records, isc_info_req_insert_count) +
2585	<	RB.GetValue(isc_info_sql_records, isc_info_req_update_count) +
2586	<	RB.GetValue(isc_info_sql_records, isc_info_req_delete_count);
2587	<	else
2588	<	Result := 0;
2589	<	end;
2590	<	finally
2591	<	RB.Free;
2592	<	end;
860	>	Result := -1
861	>	else
862	>	begin
863	>	FStatement.GetRowsAffected(SelectCount, InsertCount, UpdateCount, DeleteCount);
864	>	Result := InsertCount + UpdateCount + DeleteCount;
865		end;
866		end;
867
868	<	function TIBSQL.GetSQLParams: TIBXSQLDA;
868	>	function TIBSQL.GetSQLParams: ISQLParams;
869		begin
870		if not Prepared then
871		Prepare;
872	<	result := FSQLParams;
872	>	result := Statement.SQLParams;
873		end;
874
875		function TIBSQL.GetTransaction: TIBTransaction;
#	Line 2605 | Line 877 | begin
877		result := FBase.Transaction;
878		end;
879
2608	–	function TIBSQL.GetTRHandle: PISC_TR_HANDLE;
2609	–	begin
2610	–	result := FBase.TRHandle;
2611	–	end;
2612	–
2613	–	{
2614	–	Preprocess SQL
2615	–	Using FSQL, process the typed SQL and put the process SQL
2616	–	in FProcessedSQL and parameter names in FSQLParams
2617	–	}
2618	–	procedure TIBSQL.PreprocessSQL;
2619	–	var
2620	–	cCurChar, cNextChar, cQuoteChar: Char;
2621	–	sSQL, sProcessedSQL, sParamName: String;
2622	–	i, iLenSQL, iSQLPos: Integer;
2623	–	iCurState {$ifdef ALLOWDIALECT3PARAMNAMES}, iCurParamState {$endif}: Integer;
2624	–	iParamSuffix: Integer;
2625	–	slNames: TStrings;
2626	–
2627	–	const
2628	–	DefaultState = 0;
2629	–	CommentState = 1;
2630	–	QuoteState = 2;
2631	–	ParamState = 3;
2632	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2633	–	ParamDefaultState = 0;
2634	–	ParamQuoteState = 1;
2635	–	{$endif}
2636	–
2637	–	procedure AddToProcessedSQL(cChar: Char);
2638	–	begin
2639	–	sProcessedSQL[iSQLPos] := cChar;
2640	–	Inc(iSQLPos);
2641	–	end;
2642	–
2643	–	begin
2644	–	sParamName := '';
2645	–	slNames := TStringList.Create;
2646	–	try
2647	–	{ Do some initializations of variables }
2648	–	iParamSuffix := 0;
2649	–	cQuoteChar := '''';
2650	–	sSQL := FSQL.Text;
2651	–	iLenSQL := Length(sSQL);
2652	–	SetString(sProcessedSQL, nil, iLenSQL + 1);
2653	–	i := 1;
2654	–	iSQLPos := 1;
2655	–	iCurState := DefaultState;
2656	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2657	–	iCurParamState := ParamDefaultState;
2658	–	{$endif}
2659	–	{ Now, traverse through the SQL string, character by character,
2660	–	picking out the parameters and formatting correctly for InterBase }
2661	–	while (i <= iLenSQL) do begin
2662	–	{ Get the current token and a look-ahead }
2663	–	cCurChar := sSQL[i];
2664	–	if i = iLenSQL then
2665	–	cNextChar := #0
2666	–	else
2667	–	cNextChar := sSQL[i + 1];
2668	–	{ Now act based on the current state }
2669	–	case iCurState of
2670	–	DefaultState: begin
2671	–	case cCurChar of
2672	–	'''', '"': begin
2673	–	cQuoteChar := cCurChar;
2674	–	iCurState := QuoteState;
2675	–	end;
2676	–	'?', ':': begin
2677	–	iCurState := ParamState;
2678	–	AddToProcessedSQL('?');
2679	–	end;
2680	–	'/': if (cNextChar = '*') then begin
2681	–	AddToProcessedSQL(cCurChar);
2682	–	Inc(i);
2683	–	iCurState := CommentState;
2684	–	end;
2685	–	end;
2686	–	end;
2687	–	CommentState: begin
2688	–	if (cNextChar = #0) then
2689	–	IBError(ibxeSQLParseError, [SEOFInComment])
2690	–	else if (cCurChar = '*') then begin
2691	–	if (cNextChar = '/') then
2692	–	iCurState := DefaultState;
2693	–	end;
2694	–	end;
2695	–	QuoteState: begin
2696	–	if cNextChar = #0 then
2697	–	IBError(ibxeSQLParseError, [SEOFInString])
2698	–	else if (cCurChar = cQuoteChar) then begin
2699	–	if (cNextChar = cQuoteChar) then begin
2700	–	AddToProcessedSQL(cCurChar);
2701	–	Inc(i);
2702	–	end else
2703	–	iCurState := DefaultState;
2704	–	end;
2705	–	end;
2706	–	ParamState:
2707	–	begin
2708	–	{ collect the name of the parameter }
2709	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2710	–	if iCurParamState = ParamDefaultState then
2711	–	begin
2712	–	if cCurChar = '"' then
2713	–	iCurParamState := ParamQuoteState
2714	–	else
2715	–	{$endif}
2716	–	if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
2717	–	sParamName := sParamName + cCurChar
2718	–	else if FGenerateParamNames then
2719	–	begin
2720	–	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
2721	–	Inc(iParamSuffix);
2722	–	iCurState := DefaultState;
2723	–	slNames.AddObject(sParamName,self); //Note local convention
2724	–	//add pointer to self to mark entry
2725	–	sParamName := '';
2726	–	end
2727	–	else
2728	–	IBError(ibxeSQLParseError, [SParamNameExpected]);
2729	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2730	–	end
2731	–	else begin
2732	–	{ determine if Quoted parameter name is finished }
2733	–	if cCurChar = '"' then
2734	–	begin
2735	–	Inc(i);
2736	–	slNames.Add(sParamName);
2737	–	SParamName := '';
2738	–	iCurParamState := ParamDefaultState;
2739	–	iCurState := DefaultState;
2740	–	end
2741	–	else
2742	–	sParamName := sParamName + cCurChar
2743	–	end;
2744	–	{$endif}
2745	–	{ determine if the unquoted parameter name is finished }
2746	–	if {$ifdef ALLOWDIALECT3PARAMNAMES}(iCurParamState <> ParamQuoteState) and {$endif}
2747	–	(iCurState <> DefaultState) then
2748	–	begin
2749	–	if not (cNextChar in ['A'..'Z', 'a'..'z',
2750	–	'0'..'9', '_', '$']) then begin
2751	–	Inc(i);
2752	–	iCurState := DefaultState;
2753	–	slNames.Add(sParamName);
2754	–	sParamName := '';
2755	–	end;
2756	–	end;
2757	–	end;
2758	–	end;
2759	–	if iCurState <> ParamState then
2760	–	AddToProcessedSQL(sSQL[i]);
2761	–	Inc(i);
2762	–	end;
2763	–	AddToProcessedSQL(#0);
2764	–	FSQLParams.Count := slNames.Count;
2765	–	for i := 0 to slNames.Count - 1 do
2766	–	FSQLParams.SetParamName(slNames[i], i,FUniqueParamNames or (slNames.Objects[i] <> nil));
2767	–	FProcessedSQL.Text := sProcessedSQL;
2768	–	finally
2769	–	slNames.Free;
2770	–	end;
2771	–	end;
2772	–
880		procedure TIBSQL.SetDatabase(Value: TIBDatabase);
881		begin
882	+	if Value = FBase.Database then Exit;
883		FBase.Database := Value;
884	+	FreeHandle;
885		end;
886
887		procedure TIBSQL.Prepare;
2779	–	var
2780	–	stmt_len: Integer;
2781	–	res_buffer: array[0..7] of Char;
2782	–	type_item: Char;
888		begin
889		CheckClosed;
890		FBase.CheckDatabase;
891		FBase.CheckTransaction;
892	<	if FPrepared then
892	>	Close;
893	>	if Prepared then
894		exit;
895		if (FSQL.Text = '') then
896		IBError(ibxeEmptyQuery, [nil]);
897	+
898	+	if FStatement <> nil then
899	+	FStatement.Prepare(Transaction.TransactionIntf)
900	+	else
901		if not ParamCheck then
902	<	FProcessedSQL.Text := FSQL.Text
902	>	FStatement := Database.Attachment.Prepare(Transaction.TransactionIntf,SQL.Text)
903		else
904	<	PreprocessSQL;
905	<	if (FProcessedSQL.Text = '') then
906	<	IBError(ibxeEmptyQuery, [nil]);
907	<	try
908	<	Call(isc_dsql_alloc_statement2(StatusVector, DBHandle,
909	<	@FHandle), True);
910	<	Call(isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
911	<	PChar(FProcessedSQL.Text), Database.SQLDialect, nil), True);
912	<	{ After preparing the statement, query the stmt type and possibly
913	<	create a FSQLRecord "holder" }
914	<	{ Get the type of the statement }
2805	<	type_item := isc_info_sql_stmt_type;
2806	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 1, @type_item,
2807	<	SizeOf(res_buffer), res_buffer), True);
2808	<	if (res_buffer[0] <> isc_info_sql_stmt_type) then
2809	<	IBError(ibxeUnknownError, [nil]);
2810	<	stmt_len := isc_vax_integer(@res_buffer[1], 2);
2811	<	FSQLType := TIBSQLTypes(isc_vax_integer(@res_buffer[3], stmt_len));
2812	<	{ Done getting the type }
2813	<	case FSQLType of
2814	<	SQLGetSegment,
2815	<	SQLPutSegment,
2816	<	SQLStartTransaction: begin
2817	<	FreeHandle;
2818	<	IBError(ibxeNotPermitted, [nil]);
2819	<	end;
2820	<	SQLCommit,
2821	<	SQLRollback,
2822	<	SQLDDL, SQLSetGenerator,
2823	<	SQLInsert, SQLUpdate, SQLDelete, SQLSelect, SQLSelectForUpdate,
2824	<	SQLExecProcedure: begin
2825	<	{ We already know how many inputs there are, so... }
2826	<	if (FSQLParams.FXSQLDA <> nil) and
2827	<	(Call(isc_dsql_describe_bind(StatusVector, @FHandle, Database.SQLDialect,
2828	<	FSQLParams.FXSQLDA), False) > 0) then
2829	<	IBDataBaseError;
2830	<	FSQLParams.Initialize;
2831	<	if FSQLType in [SQLSelect, SQLSelectForUpdate,
2832	<	SQLExecProcedure] then begin
2833	<	{ Allocate an initial output descriptor (with one column) }
2834	<	FSQLRecord.Count := 1;
2835	<	{ Using isc_dsql_describe, get the right size for the columns... }
2836	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2837	<	if FSQLRecord.FXSQLDA^.sqld > FSQLRecord.FXSQLDA^.sqln then begin
2838	<	FSQLRecord.Count := FSQLRecord.FXSQLDA^.sqld;
2839	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2840	<	end else if FSQLRecord.FXSQLDA^.sqld = 0 then
2841	<	FSQLRecord.Count := 0;
2842	<	FSQLRecord.Initialize;
2843	<	end;
2844	<	end;
2845	<	end;
2846	<	FPrepared := True;
2847	<	if not (csDesigning in ComponentState) then
904	>	FStatement := Database.Attachment.PrepareWithNamedParameters(
905	>	Transaction.TransactionIntf,
906	>	SQL.Text,
907	>	GenerateParamNames);
908	>	{$IFDEF IBXQUERYSTATS}
909	>	FStatement.EnableStatistics(true);
910	>	{$ENDIF}
911	>	FMetaData := FStatement.GetMetaData;
912	>	FSQLParams := FStatement.GetSQLParams;
913	>	FStatement.SetRetainInterfaces(true);
914	>	if not (csDesigning in ComponentState) then
915		MonitorHook.SQLPrepare(Self);
2849	–	except
2850	–	on E: Exception do begin
2851	–	if (FHandle <> nil) then
2852	–	FreeHandle;
2853	–	if E is EIBInterBaseError then
2854	–	raise EIBInterBaseError.Create(EIBInterBaseError(E).SQLCode,
2855	–	EIBInterBaseError(E).IBErrorCode,
2856	–	EIBInterBaseError(E).Message +
2857	–	sSQLErrorSeparator + FProcessedSQL.Text)
2858	–	else
2859	–	raise;
2860	–	end;
2861	–	end;
916		end;
917
918		function TIBSQL.GetUniqueRelationName: String;
919		begin
920	<	if FPrepared and (FSQLType = SQLSelect) then
921	<	result := FSQLRecord.UniqueRelationName
920	>	if Prepared and (GetSQLStatementType = SQLSelect) then
921	>	result := FMetaData.GetUniqueRelationName
922		else
923		result := '';
924		end;
#	Line 2884 | Line 938 | end;
938
939		procedure TIBSQL.SetTransaction(Value: TIBTransaction);
940		begin
941	+	if FBase.Transaction = Value then Exit;
942	+	FreeHandle;
943		FBase.Transaction := Value;
944		end;
945
#	Line 2891 | Line 947 | procedure TIBSQL.SQLChanging(Sender: TOb
947		begin
948		if Assigned(OnSQLChanging) then
949		OnSQLChanging(Self);
950	<	if FHandle <> nil then FreeHandle;
950	>
951	>	FreeHandle;
952		end;
953
954		procedure TIBSQL.SQLChanged(Sender: TObject);
#	Line 2903 | Line 960 | end;
960		procedure TIBSQL.BeforeTransactionEnd(Sender: TObject;
961		Action: TTransactionAction);
962		begin
963	<	if (FOpen) then
964	<	Close;
963	>	if not (Owner is TIBCustomDataSet) then
964	>	FreeHandle;
965		end;
966
967		end.

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