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

Comparing ibx/trunk/runtime/IBSQL.pas (file contents):
Revision 39 by tony, Tue May 17 08:14:52 2016 UTC vs.
Revision 45 by tony, Tue Dec 6 10:33:46 2016 UTC

#	Line 35 | Line 35 | unit IBSQL;
35
36		{$Mode Delphi}
37
38	–	{$IF FPC_FULLVERSION >= 20700 }
38		{$codepage UTF8}
40	–	{$ENDIF}
41	–
42	–	{ IBSQL param names in dialect 3 quoted format (e.g. :"MyParam") are by default disabled.
43	–
44	–	Dialect 3 quoted format parameter names represent a significant overhead and are of
45	–	limited value - especially for users that use only TIBSQL or TIBCustomDataset
46	–	descendents. They were previously used internally by IBX to simplify SQL generation
47	–	for TTable components in Master/Slave relationships which are linked by
48	–	Dialect 3 names. They were also generated by TStoredProc when the original
49	–	parameter names are quoted.
50	–
51	–	However, for some users they do cause a big processing overhead. The TTable/TStoredProc
52	–	code has been re-written so that they are no required by IBX internally.
53	–	The code to support quoted parameter names is now subject  to conditional compilation.
54	–	To enable support, ALLOWDIALECT3PARAMNAMES should be defined when IBX is compiled.
55	–
56	–	Hint: deleting the space between the brace and the dollar sign below
57	–
58	–	}
59	–
60	–	{ $define ALLOWDIALECT3PARAMNAMES}
61	–
62	–	{$ifndef ALLOWDIALECT3PARAMNAMES}
63	–
64	–	{ Even when dialect 3 quoted format parameter names are not supported, IBX still processes
65	–	parameter names case insensitive. This does result in some additional overhead
66	–	due to a call to "AnsiUpperCase". This can be avoided by undefining
67	–	"UseCaseSensitiveParamName" below.
68	–
69	–	Note: do not define "UseCaseSensitiveParamName" when "ALLOWDIALECT3PARAMNAMES"
70	–	is defined. This will not give a useful result.
71	–	}
72	–	{$define UseCaseSensitiveParamName}
73	–	{$endif}
39
40		interface
41
#	Line 80 | Line 45 | uses
45		{$ELSE}
46		baseunix, unix,
47		{$ENDIF}
48	<	SysUtils, Classes, IBHeader,
84	<	IBErrorCodes, IBExternals, DB, IB, IBDatabase, IBUtils, IBXConst;
85	<
86	<	const
87	<	sSQLErrorSeparator = ' When Executing: ';
48	>	SysUtils, Classes, IBExternals, IB, IBDatabase, IBUtils;
49
50		type
90	–	TIBSQL = class;
91	–	TIBXSQLDA = class;
92	–
93	–	{ TIBXSQLVAR }
94	–	TIBXSQLVAR = class(TObject)
95	–	private
96	–	FParent: TIBXSQLDA;
97	–	FSQL: TIBSQL;
98	–	FIndex: Integer;
99	–	FModified: Boolean;
100	–	FName: String;
101	–	FUniqueName: boolean;
102	–	FXSQLVAR: PXSQLVAR;       { Point to the PXSQLVAR in the owner object }
103	–
104	–	function AdjustScale(Value: Int64; Scale: Integer): Double;
105	–	function AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
106	–	function AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
107	–	function GetAsBoolean: boolean;
108	–	function GetAsCurrency: Currency;
109	–	function GetAsInt64: Int64;
110	–	function GetAsDateTime: TDateTime;
111	–	function GetAsDouble: Double;
112	–	function GetAsFloat: Float;
113	–	function GetAsLong: Long;
114	–	function GetAsPointer: Pointer;
115	–	function GetAsQuad: TISC_QUAD;
116	–	function GetAsShort: Short;
117	–	function GetAsString: String;
118	–	function GetAsVariant: Variant;
119	–	function GetAsXSQLVAR: PXSQLVAR;
120	–	function GetIsNull: Boolean;
121	–	function GetIsNullable: Boolean;
122	–	function GetSize: Integer;
123	–	function GetSQLType: Integer;
124	–	procedure SetAsBoolean(AValue: boolean);
125	–	procedure SetAsCurrency(Value: Currency);
126	–	procedure SetAsInt64(Value: Int64);
127	–	procedure SetAsDate(Value: TDateTime);
128	–	procedure SetAsLong(Value: Long);
129	–	procedure SetAsTime(Value: TDateTime);
130	–	procedure SetAsDateTime(Value: TDateTime);
131	–	procedure SetAsDouble(Value: Double);
132	–	procedure SetAsFloat(Value: Float);
133	–	procedure SetAsPointer(Value: Pointer);
134	–	procedure SetAsQuad(Value: TISC_QUAD);
135	–	procedure SetAsShort(Value: Short);
136	–	procedure SetAsString(Value: String);
137	–	procedure SetAsVariant(Value: Variant);
138	–	procedure SetAsXSQLVAR(Value: PXSQLVAR);
139	–	procedure SetIsNull(Value: Boolean);
140	–	procedure SetIsNullable(Value: Boolean);
141	–	procedure xSetAsBoolean(AValue: boolean);
142	–	procedure xSetAsCurrency(Value: Currency);
143	–	procedure xSetAsInt64(Value: Int64);
144	–	procedure xSetAsDate(Value: TDateTime);
145	–	procedure xSetAsTime(Value: TDateTime);
146	–	procedure xSetAsDateTime(Value: TDateTime);
147	–	procedure xSetAsDouble(Value: Double);
148	–	procedure xSetAsFloat(Value: Float);
149	–	procedure xSetAsLong(Value: Long);
150	–	procedure xSetAsPointer(Value: Pointer);
151	–	procedure xSetAsQuad(Value: TISC_QUAD);
152	–	procedure xSetAsShort(Value: Short);
153	–	procedure xSetAsString(Value: String);
154	–	procedure xSetAsVariant(Value: Variant);
155	–	procedure xSetAsXSQLVAR(Value: PXSQLVAR);
156	–	procedure xSetIsNull(Value: Boolean);
157	–	procedure xSetIsNullable(Value: Boolean);
158	–	public
159	–	constructor Create(Parent: TIBXSQLDA; Query: TIBSQL);
160	–	procedure Assign(Source: TIBXSQLVAR);
161	–	procedure Clear;
162	–	procedure LoadFromFile(const FileName: String);
163	–	procedure LoadFromStream(Stream: TStream);
164	–	procedure SaveToFile(const FileName: String);
165	–	procedure SaveToStream(Stream: TStream);
166	–	property AsDate: TDateTime read GetAsDateTime write SetAsDate;
167	–	property AsBoolean:boolean read GetAsBoolean write SetAsBoolean;
168	–	property AsTime: TDateTime read GetAsDateTime write SetAsTime;
169	–	property AsDateTime: TDateTime read GetAsDateTime write SetAsDateTime;
170	–	property AsDouble: Double read GetAsDouble write SetAsDouble;
171	–	property AsFloat: Float read GetAsFloat write SetAsFloat;
172	–	property AsCurrency: Currency read GetAsCurrency write SetAsCurrency;
173	–	property AsInt64: Int64 read GetAsInt64 write SetAsInt64;
174	–	property AsInteger: Integer read GetAsLong write SetAsLong;
175	–	property AsLong: Long read GetAsLong write SetAsLong;
176	–	property AsPointer: Pointer read GetAsPointer write SetAsPointer;
177	–	property AsQuad: TISC_QUAD read GetAsQuad write SetAsQuad;
178	–	property AsShort: Short read GetAsShort write SetAsShort;
179	–	property AsString: String read GetAsString write SetAsString;
180	–	property AsVariant: Variant read GetAsVariant write SetAsVariant;
181	–	property AsXSQLVAR: PXSQLVAR read GetAsXSQLVAR write SetAsXSQLVAR;
182	–	property Data: PXSQLVAR read FXSQLVAR write FXSQLVAR;
183	–	property IsNull: Boolean read GetIsNull write SetIsNull;
184	–	property IsNullable: Boolean read GetIsNullable write SetIsNullable;
185	–	property Index: Integer read FIndex;
186	–	property Modified: Boolean read FModified write FModified;
187	–	property Name: String read FName;
188	–	property Size: Integer read GetSize;
189	–	property SQLType: Integer read GetSQLType;
190	–	property Value: Variant read GetAsVariant write SetAsVariant;
191	–	end;
192	–
193	–	TIBXSQLVARArray = Array of TIBXSQLVAR;
194	–
195	–	TIBXSQLDAType = (daInput,daOutput);
196	–
197	–	{ TIBXSQLDA }
198	–
199	–	TIBXSQLDA = class(TObject)
200	–	protected
201	–	FSQL: TIBSQL;
202	–	FCount: Integer;
203	–	FSize: Integer;
204	–	FInputSQLDA: boolean;
205	–	FXSQLDA: PXSQLDA;
206	–	FXSQLVARs: TIBXSQLVARArray; { array of IBXQLVARs }
207	–	FUniqueRelationName: String;
208	–	function GetModified: Boolean;
209	–	function GetRecordSize: Integer;
210	–	function GetXSQLDA: PXSQLDA;
211	–	function GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
212	–	function GetXSQLVARByName(Idx: String): TIBXSQLVAR;
213	–	procedure Initialize;
214	–	procedure SetCount(Value: Integer);
215	–	public
216	–	constructor Create(Query: TIBSQL; sqldaType: TIBXSQLDAType);
217	–	destructor Destroy; override;
218	–	procedure SetParamName(FieldName: String; Idx: Integer; UniqueName: boolean = false);
219	–	function ByName(Idx: String): TIBXSQLVAR;
220	–	property AsXSQLDA: PXSQLDA read GetXSQLDA;
221	–	property Count: Integer read FCount write SetCount;
222	–	property Modified: Boolean read GetModified;
223	–	property RecordSize: Integer read GetRecordSize;
224	–	property Vars[Idx: Integer]: TIBXSQLVAR read GetXSQLVAR; default;
225	–	property UniqueRelationName: String read FUniqueRelationName;
226	–	end;
227	–
51		{ TIBBatch }
52
53		TIBBatch = class(TObject)
54		protected
55		FFilename: String;
56	<	FColumns: TIBXSQLDA;
57	<	FParams: TIBXSQLDA;
56	>	FColumns: IResults;
57	>	FParams: ISQLParams;
58		public
59		procedure ReadyFile; virtual; abstract;
60	<	property Columns: TIBXSQLDA read FColumns;
60	>	property Columns: IResults read FColumns;
61		property Filename: String read FFilename write FFilename;
62	<	property Params: TIBXSQLDA read FParams;
62	>	property Params: ISQLParams read FParams;
63		end;
64
65		TIBBatchInput = class(TIBBatch)
#	Line 322 | Line 145 | type
145		end;
146
147		{ TIBSQL }
325	–	TIBSQLTypes = (SQLUnknown, SQLSelect, SQLInsert,
326	–	SQLUpdate, SQLDelete, SQLDDL,
327	–	SQLGetSegment, SQLPutSegment,
328	–	SQLExecProcedure, SQLStartTransaction,
329	–	SQLCommit, SQLRollback,
330	–	SQLSelectForUpdate, SQLSetGenerator);
148
149		TIBSQL = class(TComponent)
150		private
151	<	FIBLoaded: Boolean;
151	>	FMetaData: IMetaData;
152	>	FSQLParams: ISQLParams;
153	>	FStatement: IStatement;
154		FOnSQLChanged: TNotifyEvent;
155		FUniqueParamNames: Boolean;
156	+	FBOF: boolean;
157	+	FEOF: boolean;
158		function GetFieldCount: integer;
159	+	function GetOpen: Boolean;
160	+	function GetPrepared: Boolean;
161	+	function GetSQLStatementType: TIBSQLStatementTypes;
162		procedure SetUniqueParamNames(AValue: Boolean);
163		protected
164		FBase: TIBBase;
165	<	FBOF,                          { At BOF? }
342	<	FEOF,                          { At EOF? }
343	<	FGoToFirstRecordOnExecute,     { Automatically position record on first record after executing }
344	<	FOpen,                         { Is a cursor open? }
345	<	FPrepared: Boolean;            { Has the query been prepared? }
165	>	FGoToFirstRecordOnExecute: boolean;     { Automatically position record on first record after executing }
166		FRecordCount: Integer;         { How many records have been read so far? }
347	–	FCursor: String;               { Cursor name...}
348	–	FHandle: TISC_STMT_HANDLE;     { Once prepared, this accesses the SQL Query }
167		FOnSQLChanging: TNotifyEvent;  { Call this when the SQL is changing }
168		FSQL: TStrings;                { SQL Query (by user) }
169		FParamCheck: Boolean;          { Check for parameters? (just like TQuery) }
170	<	FProcessedSQL: TStrings;       { SQL Query (pre-processed for param labels) }
171	<	FSQLParams,                    { Any parameters to the query }
354	<	FSQLRecord: TIBXSQLDA;         { The current record }
355	<	FSQLType: TIBSQLTypes;         { Select, update, delete, insert, create, alter, etc...}
170	>	FResults: IResults;            {Single row results from exec}
171	>	FResultSet: IResultSet;        {Multi-row results from open cursor}
172		FGenerateParamNames: Boolean;  { Auto generate param names ?}
173		procedure DoBeforeDatabaseDisconnect(Sender: TObject);
174		function GetDatabase: TIBDatabase;
359	–	function GetDBHandle: PISC_DB_HANDLE;
175		function GetEOF: Boolean;
176	<	function GetFields(const Idx: Integer): TIBXSQLVAR;
176	>	function GetFields(const Idx: Integer): ISQLData;
177		function GetFieldIndex(FieldName: String): Integer;
178		function GetPlan: String;
179		function GetRecordCount: Integer;
180		function GetRowsAffected: Integer;
181	<	function GetSQLParams: TIBXSQLDA;
181	>	function GetSQLParams: ISQLParams;
182		function GetTransaction: TIBTransaction;
368	–	function GetTRHandle: PISC_TR_HANDLE;
369	–	procedure PreprocessSQL;
183		procedure SetDatabase(Value: TIBDatabase);
184		procedure SetSQL(Value: TStrings);
185		procedure SetTransaction(Value: TIBTransaction);
#	Line 378 | Line 191 | type
191		destructor Destroy; override;
192		procedure BatchInput(InputObject: TIBBatchInput);
193		procedure BatchOutput(OutputObject: TIBBatchOutput);
381	–	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
194		procedure CheckClosed;           { raise error if query is not closed. }
195		procedure CheckOpen;             { raise error if query is not open.}
196		procedure CheckValidStatement;   { raise error if statement is invalid.}
197		procedure Close;
386	–	function Current: TIBXSQLDA;
198		procedure ExecQuery;
199	<	function FieldByName(FieldName: String): TIBXSQLVAR;
200	<	function ParamByName(ParamName: String): TIBXSQLVAR;
199	>	function HasField(FieldName: String): boolean;
200	>	function FieldByName(FieldName: String): ISQLData;
201	>	function ParamByName(ParamName: String): ISQLParam;
202		procedure FreeHandle;
203	<	function Next: TIBXSQLDA;
203	>	function Next: boolean;
204		procedure Prepare;
205		function GetUniqueRelationName: String;
206		property Bof: Boolean read FBOF;
395	–	property DBHandle: PISC_DB_HANDLE read GetDBHandle;
207		property Eof: Boolean read GetEOF;
208	<	property Fields[const Idx: Integer]: TIBXSQLVAR read GetFields;
208	>	property Current: IResults read FResults;
209	>	property Fields[const Idx: Integer]: ISQLData read GetFields; default;
210		property FieldIndex[FieldName: String]: Integer read GetFieldIndex;
211		property FieldCount: integer read GetFieldCount;
212	<	property Open: Boolean read FOpen;
213	<	property Params: TIBXSQLDA read GetSQLParams;
212	>	property Open: Boolean read GetOpen;
213	>	property Params: ISQLParams read GetSQLParams;
214		property Plan: String read GetPlan;
215	<	property Prepared: Boolean read FPrepared;
215	>	property Prepared: Boolean read GetPrepared;
216		property RecordCount: Integer read GetRecordCount;
217		property RowsAffected: Integer read GetRowsAffected;
218	<	property SQLType: TIBSQLTypes read FSQLType;
407	<	property TRHandle: PISC_TR_HANDLE read GetTRHandle;
408	<	property Handle: TISC_STMT_HANDLE read FHandle;
218	>	property SQLStatementType: TIBSQLStatementTypes read GetSQLStatementType;
219		property UniqueRelationName: String read GetUniqueRelationName;
220	+	property Statement: IStatement read FStatement;
221	+	property MetaData: IMetaData read FMetaData;
222		published
223		property Database: TIBDatabase read GetDatabase write SetDatabase;
224		property GenerateParamNames: Boolean read FGenerateParamNames write FGenerateParamNames;
#	Line 421 | Line 233 | type
233		property OnSQLChanged: TNotifyEvent read FOnSQLChanged write FOnSQLChanged;
234		end;
235
236	+	procedure IBAlloc(var P; OldSize, NewSize: Integer);
237	+
238		implementation
239
240		uses
241	<	IBIntf, IBBlob, Variants , IBSQLMonitor;
428	<
429	<	{ TIBXSQLVAR }
430	<	constructor TIBXSQLVAR.Create(Parent: TIBXSQLDA; Query: TIBSQL);
431	<	begin
432	<	inherited Create;
433	<	FParent := Parent;
434	<	FSQL := Query;
435	<	end;
436	<
437	<	procedure TIBXSQLVAR.Assign(Source: TIBXSQLVAR);
438	<	var
439	<	szBuff: PChar;
440	<	s_bhandle, d_bhandle: TISC_BLOB_HANDLE;
441	<	bSourceBlob, bDestBlob: Boolean;
442	<	iSegs: Int64;
443	<	iMaxSeg: Int64;
444	<	iSize: Int64;
445	<	iBlobType: Short;
446	<	begin
447	<	szBuff := nil;
448	<	bSourceBlob := True;
449	<	bDestBlob := True;
450	<	s_bhandle := nil;
451	<	d_bhandle := nil;
452	<	try
453	<	if (Source.IsNull) then
454	<	begin
455	<	IsNull := True;
456	<	exit;
457	<	end
458	<	else
459	<	if (FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) or
460	<	(Source.FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) then
461	<	exit; { arrays not supported }
462	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
463	<	(Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
464	<	begin
465	<	AsXSQLVAR := Source.AsXSQLVAR;
466	<	exit;
467	<	end
468	<	else
469	<	if (Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
470	<	begin
471	<	szBuff := nil;
472	<	IBAlloc(szBuff, 0, Source.FXSQLVAR^.sqllen);
473	<	Move(Source.FXSQLVAR^.sqldata[0], szBuff[0], Source.FXSQLVAR^.sqllen);
474	<	bSourceBlob := False;
475	<	iSize := Source.FXSQLVAR^.sqllen;
476	<	end
477	<	else
478	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
479	<	bDestBlob := False;
480	<
481	<	if bSourceBlob then
482	<	begin
483	<	{ read the blob }
484	<	Source.FSQL.Call(isc_open_blob2(StatusVector, Source.FSQL.DBHandle,
485	<	Source.FSQL.TRHandle, @s_bhandle, PISC_QUAD(Source.FXSQLVAR.sqldata),
486	<	0, nil), True);
487	<	try
488	<	IBBlob.GetBlobInfo(@s_bhandle, iSegs, iMaxSeg, iSize,
489	<	iBlobType);
490	<	szBuff := nil;
491	<	IBAlloc(szBuff, 0, iSize);
492	<	IBBlob.ReadBlob(@s_bhandle, szBuff, iSize);
493	<	finally
494	<	Source.FSQL.Call(isc_close_blob(StatusVector, @s_bhandle), True);
495	<	end;
496	<	end;
497	<
498	<	if bDestBlob then
499	<	begin
500	<	{ write the blob }
501	<	FSQL.Call(isc_create_blob2(StatusVector, FSQL.DBHandle,
502	<	FSQL.TRHandle, @d_bhandle, PISC_QUAD(FXSQLVAR.sqldata),
503	<	0, nil), True);
504	<	try
505	<	IBBlob.WriteBlob(@d_bhandle, szBuff, iSize);
506	<	isNull := false
507	<	finally
508	<	FSQL.Call(isc_close_blob(StatusVector, @d_bhandle), True);
509	<	end;
510	<	end
511	<	else
512	<	begin
513	<	{ just copy the buffer }
514	<	FXSQLVAR.sqltype := SQL_TEXT;
515	<	FXSQLVAR.sqllen := iSize;
516	<	IBAlloc(FXSQLVAR.sqldata, iSize, iSize);
517	<	Move(szBuff[0], FXSQLVAR^.sqldata[0], iSize);
518	<	end;
519	<	finally
520	<	FreeMem(szBuff);
521	<	end;
522	<	end;
523	<
524	<	function TIBXSQLVAR.AdjustScale(Value: Int64; Scale: Integer): Double;
525	<	var
526	<	Scaling : Int64;
527	<	i: Integer;
528	<	Val: Double;
529	<	begin
530	<	Scaling := 1; Val := Value;
531	<	if Scale > 0 then
532	<	begin
533	<	for i := 1 to Scale do
534	<	Scaling := Scaling * 10;
535	<	result := Val * Scaling;
536	<	end
537	<	else
538	<	if Scale < 0 then
539	<	begin
540	<	for i := -1 downto Scale do
541	<	Scaling := Scaling * 10;
542	<	result := Val / Scaling;
543	<	end
544	<	else
545	<	result := Val;
546	<	end;
547	<
548	<	function TIBXSQLVAR.AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
549	<	var
550	<	Scaling : Int64;
551	<	i: Integer;
552	<	Val: Int64;
553	<	begin
554	<	Scaling := 1; Val := Value;
555	<	if Scale > 0 then begin
556	<	for i := 1 to Scale do Scaling := Scaling * 10;
557	<	result := Val * Scaling;
558	<	end else if Scale < 0 then begin
559	<	for i := -1 downto Scale do Scaling := Scaling * 10;
560	<	result := Val div Scaling;
561	<	end else
562	<	result := Val;
563	<	end;
564	<
565	<	function TIBXSQLVAR.AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
566	<	var
567	<	Scaling : Int64;
568	<	i : Integer;
569	<	FractionText, PadText, CurrText: string;
570	<	begin
571	<	Result := 0;
572	<	Scaling := 1;
573	<	if Scale > 0 then
574	<	begin
575	<	for i := 1 to Scale do
576	<	Scaling := Scaling * 10;
577	<	result := Value * Scaling;
578	<	end
579	<	else
580	<	if Scale < 0 then
581	<	begin
582	<	for i := -1 downto Scale do
583	<	Scaling := Scaling * 10;
584	<	FractionText := IntToStr(abs(Value mod Scaling));
585	<	for i := Length(FractionText) to -Scale -1 do
586	<	PadText := '0' + PadText;
587	<	if Value < 0 then
588	<	CurrText := '-' + IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText
589	<	else
590	<	CurrText := IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText;
591	<	try
592	<	result := StrToCurr(CurrText);
593	<	except
594	<	on E: Exception do
595	<	IBError(ibxeInvalidDataConversion, [nil]);
596	<	end;
597	<	end
598	<	else
599	<	result := Value;
600	<	end;
601	<
602	<	function TIBXSQLVAR.GetAsBoolean: boolean;
603	<	begin
604	<	result := false;
605	<	if not IsNull then
606	<	begin
607	<	if FXSQLVAR^.sqltype and (not 1) = SQL_BOOLEAN then
608	<	result := PByte(FXSQLVAR^.sqldata)^ = ISC_TRUE
609	<	else
610	<	IBError(ibxeInvalidDataConversion, [nil]);
611	<	end
612	<	end;
613	<
614	<	function TIBXSQLVAR.GetAsCurrency: Currency;
615	<	begin
616	<	result := 0;
617	<	if FSQL.Database.SQLDialect < 3 then
618	<	result := GetAsDouble
619	<	else begin
620	<	if not IsNull then
621	<	case FXSQLVAR^.sqltype and (not 1) of
622	<	SQL_TEXT, SQL_VARYING: begin
623	<	try
624	<	result := StrtoCurr(AsString);
625	<	except
626	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
627	<	end;
628	<	end;
629	<	SQL_SHORT:
630	<	result := AdjustScaleToCurrency(Int64(PShort(FXSQLVAR^.sqldata)^),
631	<	FXSQLVAR^.sqlscale);
632	<	SQL_LONG:
633	<	result := AdjustScaleToCurrency(Int64(PLong(FXSQLVAR^.sqldata)^),
634	<	FXSQLVAR^.sqlscale);
635	<	SQL_INT64:
636	<	result := AdjustScaleToCurrency(PInt64(FXSQLVAR^.sqldata)^,
637	<	FXSQLVAR^.sqlscale);
638	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
639	<	result := Trunc(AsDouble);
640	<	else
641	<	IBError(ibxeInvalidDataConversion, [nil]);
642	<	end;
643	<	end;
644	<	end;
645	<
646	<	function TIBXSQLVAR.GetAsInt64: Int64;
647	<	begin
648	<	result := 0;
649	<	if not IsNull then
650	<	case FXSQLVAR^.sqltype and (not 1) of
651	<	SQL_TEXT, SQL_VARYING: begin
652	<	try
653	<	result := StrToInt64(AsString);
654	<	except
655	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
656	<	end;
657	<	end;
658	<	SQL_SHORT:
659	<	result := AdjustScaleToInt64(Int64(PShort(FXSQLVAR^.sqldata)^),
660	<	FXSQLVAR^.sqlscale);
661	<	SQL_LONG:
662	<	result := AdjustScaleToInt64(Int64(PLong(FXSQLVAR^.sqldata)^),
663	<	FXSQLVAR^.sqlscale);
664	<	SQL_INT64:
665	<	result := AdjustScaleToInt64(PInt64(FXSQLVAR^.sqldata)^,
666	<	FXSQLVAR^.sqlscale);
667	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
668	<	result := Trunc(AsDouble);
669	<	else
670	<	IBError(ibxeInvalidDataConversion, [nil]);
671	<	end;
672	<	end;
673	<
674	<	function TIBXSQLVAR.GetAsDateTime: TDateTime;
675	<	var
676	<	tm_date: TCTimeStructure;
677	<	msecs: word;
678	<	begin
679	<	result := 0;
680	<	if not IsNull then
681	<	case FXSQLVAR^.sqltype and (not 1) of
682	<	SQL_TEXT, SQL_VARYING: begin
683	<	try
684	<	result := StrToDate(AsString);
685	<	except
686	<	on E: EConvertError do IBError(ibxeInvalidDataConversion, [nil]);
687	<	end;
688	<	end;
689	<	SQL_TYPE_DATE: begin
690	<	isc_decode_sql_date(PISC_DATE(FXSQLVAR^.sqldata), @tm_date);
691	<	try
692	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
693	<	Word(tm_date.tm_mday));
694	<	except
695	<	on E: EConvertError do begin
696	<	IBError(ibxeInvalidDataConversion, [nil]);
697	<	end;
698	<	end;
699	<	end;
700	<	SQL_TYPE_TIME: begin
701	<	isc_decode_sql_time(PISC_TIME(FXSQLVAR^.sqldata), @tm_date);
702	<	try
703	<	msecs :=  (PISC_TIME(FXSQLVAR^.sqldata)^ mod 10000) div 10;
704	<	result := EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
705	<	Word(tm_date.tm_sec), msecs)
706	<	except
707	<	on E: EConvertError do begin
708	<	IBError(ibxeInvalidDataConversion, [nil]);
709	<	end;
710	<	end;
711	<	end;
712	<	SQL_TIMESTAMP: begin
713	<	isc_decode_date(PISC_QUAD(FXSQLVAR^.sqldata), @tm_date);
714	<	try
715	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
716	<	Word(tm_date.tm_mday));
717	<	msecs := (PISC_TIMESTAMP(FXSQLVAR^.sqldata)^.timestamp_time mod 10000) div 10;
718	<	if result >= 0 then
719	<	result := result + EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
720	<	Word(tm_date.tm_sec), msecs)
721	<	else
722	<	result := result - EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
723	<	Word(tm_date.tm_sec), msecs)
724	<	except
725	<	on E: EConvertError do begin
726	<	IBError(ibxeInvalidDataConversion, [nil]);
727	<	end;
728	<	end;
729	<	end;
730	<	else
731	<	IBError(ibxeInvalidDataConversion, [nil]);
732	<	end;
733	<	end;
734	<
735	<	function TIBXSQLVAR.GetAsDouble: Double;
736	<	begin
737	<	result := 0;
738	<	if not IsNull then begin
739	<	case FXSQLVAR^.sqltype and (not 1) of
740	<	SQL_TEXT, SQL_VARYING: begin
741	<	try
742	<	result := StrToFloat(AsString);
743	<	except
744	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
745	<	end;
746	<	end;
747	<	SQL_SHORT:
748	<	result := AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
749	<	FXSQLVAR^.sqlscale);
750	<	SQL_LONG:
751	<	result := AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
752	<	FXSQLVAR^.sqlscale);
753	<	SQL_INT64:
754	<	result := AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale);
755	<	SQL_FLOAT:
756	<	result := PFloat(FXSQLVAR^.sqldata)^;
757	<	SQL_DOUBLE, SQL_D_FLOAT:
758	<	result := PDouble(FXSQLVAR^.sqldata)^;
759	<	else
760	<	IBError(ibxeInvalidDataConversion, [nil]);
761	<	end;
762	<	if  FXSQLVAR^.sqlscale <> 0 then
763	<	result :=
764	<	StrToFloat(FloatToStrF(result, fffixed, 15,
765	<	Abs(FXSQLVAR^.sqlscale) ));
766	<	end;
767	<	end;
768	<
769	<	function TIBXSQLVAR.GetAsFloat: Float;
770	<	begin
771	<	result := 0;
772	<	try
773	<	result := AsDouble;
774	<	except
775	<	on E: EOverflow do
776	<	IBError(ibxeInvalidDataConversion, [nil]);
777	<	end;
778	<	end;
779	<
780	<	function TIBXSQLVAR.GetAsLong: Long;
781	<	begin
782	<	result := 0;
783	<	if not IsNull then
784	<	case FXSQLVAR^.sqltype and (not 1) of
785	<	SQL_TEXT, SQL_VARYING: begin
786	<	try
787	<	result := StrToInt(AsString);
788	<	except
789	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
790	<	end;
791	<	end;
792	<	SQL_SHORT:
793	<	result := Trunc(AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
794	<	FXSQLVAR^.sqlscale));
795	<	SQL_LONG:
796	<	result := Trunc(AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
797	<	FXSQLVAR^.sqlscale));
798	<	SQL_INT64:
799	<	result := Trunc(AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale));
800	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
801	<	result := Trunc(AsDouble);
802	<	else
803	<	IBError(ibxeInvalidDataConversion, [nil]);
804	<	end;
805	<	end;
806	<
807	<	function TIBXSQLVAR.GetAsPointer: Pointer;
808	<	begin
809	<	if not IsNull then
810	<	result := FXSQLVAR^.sqldata
811	<	else
812	<	result := nil;
813	<	end;
814	<
815	<	function TIBXSQLVAR.GetAsQuad: TISC_QUAD;
816	<	begin
817	<	result.gds_quad_high := 0;
818	<	result.gds_quad_low := 0;
819	<	if not IsNull then
820	<	case FXSQLVAR^.sqltype and (not 1) of
821	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD:
822	<	result := PISC_QUAD(FXSQLVAR^.sqldata)^;
823	<	else
824	<	IBError(ibxeInvalidDataConversion, [nil]);
825	<	end;
826	<	end;
827	<
828	<	function TIBXSQLVAR.GetAsShort: Short;
829	<	begin
830	<	result := 0;
831	<	try
832	<	result := AsLong;
833	<	except
834	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
835	<	end;
836	<	end;
837	<
838	<
839	<	function TIBXSQLVAR.GetAsString: String;
840	<	var
841	<	sz: PChar;
842	<	str_len: Integer;
843	<	ss: TStringStream;
844	<	begin
845	<	result := '';
846	<	{ Check null, if so return a default string }
847	<	if not IsNull then
848	<	case FXSQLVar^.sqltype and (not 1) of
849	<	SQL_ARRAY:
850	<	result := '(Array)'; {do not localize}
851	<	SQL_BLOB: begin
852	<	ss := TStringStream.Create('');
853	<	try
854	<	SaveToStream(ss);
855	<	result := ss.DataString;
856	<	finally
857	<	ss.Free;
858	<	end;
859	<	end;
860	<	SQL_TEXT, SQL_VARYING: begin
861	<	sz := FXSQLVAR^.sqldata;
862	<	if (FXSQLVar^.sqltype and (not 1) = SQL_TEXT) then
863	<	str_len := FXSQLVar^.sqllen
864	<	else begin
865	<	str_len := isc_vax_integer(FXSQLVar^.sqldata, 2);
866	<	Inc(sz, 2);
867	<	end;
868	<	SetString(result, sz, str_len);
869	<	if ((FXSQLVar^.sqltype and (not 1)) = SQL_TEXT) then
870	<	result := TrimRight(result);
871	<	end;
872	<	SQL_TYPE_DATE:
873	<	case FSQL.Database.SQLDialect of
874	<	1 : result := DateTimeToStr(AsDateTime);
875	<	3 : result := DateToStr(AsDateTime);
876	<	end;
877	<	SQL_TYPE_TIME :
878	<	result := TimeToStr(AsDateTime);
879	<	SQL_TIMESTAMP:
880	<	result := DateTimeToStr(AsDateTime);
881	<	SQL_SHORT, SQL_LONG:
882	<	if FXSQLVAR^.sqlscale = 0 then
883	<	result := IntToStr(AsLong)
884	<	else if FXSQLVAR^.sqlscale >= (-4) then
885	<	result := CurrToStr(AsCurrency)
886	<	else
887	<	result := FloatToStr(AsDouble);
888	<	SQL_INT64:
889	<	if FXSQLVAR^.sqlscale = 0 then
890	<	result := IntToStr(AsInt64)
891	<	else if FXSQLVAR^.sqlscale >= (-4) then
892	<	result := CurrToStr(AsCurrency)
893	<	else
894	<	result := FloatToStr(AsDouble);
895	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
896	<	result := FloatToStr(AsDouble);
897	<	else
898	<	IBError(ibxeInvalidDataConversion, [nil]);
899	<	end;
900	<	end;
901	<
902	<	function TIBXSQLVAR.GetAsVariant: Variant;
903	<	begin
904	<	if IsNull then
905	<	result := NULL
906	<	{ Check null, if so return a default string }
907	<	else case FXSQLVar^.sqltype and (not 1) of
908	<	SQL_ARRAY:
909	<	result := '(Array)'; {do not localize}
910	<	SQL_BLOB:
911	<	result := '(Blob)'; {do not localize}
912	<	SQL_TEXT, SQL_VARYING:
913	<	result := AsString;
914	<	SQL_TIMESTAMP, SQL_TYPE_DATE, SQL_TYPE_TIME:
915	<	result := AsDateTime;
916	<	SQL_SHORT, SQL_LONG:
917	<	if FXSQLVAR^.sqlscale = 0 then
918	<	result := AsLong
919	<	else if FXSQLVAR^.sqlscale >= (-4) then
920	<	result := AsCurrency
921	<	else
922	<	result := AsDouble;
923	<	SQL_INT64:
924	<	if FXSQLVAR^.sqlscale = 0 then
925	<	result := AsInt64
926	<	else if FXSQLVAR^.sqlscale >= (-4) then
927	<	result := AsCurrency
928	<	else
929	<	result := AsDouble;
930	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
931	<	result := AsDouble;
932	<	SQL_BOOLEAN:
933	<	result := AsBoolean;
934	<	else
935	<	IBError(ibxeInvalidDataConversion, [nil]);
936	<	end;
937	<	end;
938	<
939	<	function TIBXSQLVAR.GetAsXSQLVAR: PXSQLVAR;
940	<	begin
941	<	result := FXSQLVAR;
942	<	end;
943	<
944	<	function TIBXSQLVAR.GetIsNull: Boolean;
945	<	begin
946	<	result := IsNullable and (FXSQLVAR^.sqlind^ = -1);
947	<	end;
948	<
949	<	function TIBXSQLVAR.GetIsNullable: Boolean;
950	<	begin
951	<	result := (FXSQLVAR^.sqltype and 1 = 1);
952	<	end;
953	<
954	<	procedure TIBXSQLVAR.LoadFromFile(const FileName: String);
955	<	var
956	<	fs: TFileStream;
957	<	begin
958	<	fs := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
959	<	try
960	<	LoadFromStream(fs);
961	<	finally
962	<	fs.Free;
963	<	end;
964	<	end;
965	<
966	<	procedure TIBXSQLVAR.LoadFromStream(Stream: TStream);
967	<	var
968	<	bs: TIBBlobStream;
969	<	begin
970	<	bs := TIBBlobStream.Create;
971	<	try
972	<	bs.Mode := bmWrite;
973	<	bs.Database := FSQL.Database;
974	<	bs.Transaction := FSQL.Transaction;
975	<	Stream.Seek(0, soFromBeginning);
976	<	bs.LoadFromStream(Stream);
977	<	bs.Finalize;
978	<	AsQuad := bs.BlobID;
979	<	finally
980	<	bs.Free;
981	<	end;
982	<	end;
983	<
984	<	procedure TIBXSQLVAR.SaveToFile(const FileName: String);
985	<	var
986	<	fs: TFileStream;
987	<	begin
988	<	fs := TFileStream.Create(FileName, fmCreate or fmShareExclusive);
989	<	try
990	<	SaveToStream(fs);
991	<	finally
992	<	fs.Free;
993	<	end;
994	<	end;
995	<
996	<	procedure TIBXSQLVAR.SaveToStream(Stream: TStream);
997	<	var
998	<	bs: TIBBlobStream;
999	<	begin
1000	<	bs := TIBBlobStream.Create;
1001	<	try
1002	<	bs.Mode := bmRead;
1003	<	bs.Database := FSQL.Database;
1004	<	bs.Transaction := FSQL.Transaction;
1005	<	bs.BlobID := AsQuad;
1006	<	bs.SaveToStream(Stream);
1007	<	finally
1008	<	bs.Free;
1009	<	end;
1010	<	end;
1011	<
1012	<	function TIBXSQLVAR.GetSize: Integer;
1013	<	begin
1014	<	result := FXSQLVAR^.sqllen;
1015	<	end;
1016	<
1017	<	function TIBXSQLVAR.GetSQLType: Integer;
1018	<	begin
1019	<	result := FXSQLVAR^.sqltype and (not 1);
1020	<	end;
1021	<
1022	<	procedure TIBXSQLVAR.SetAsBoolean(AValue: boolean);
1023	<	var
1024	<	i: Integer;
1025	<	begin
1026	<	if FUniqueName then
1027	<	xSetAsBoolean(AValue)
1028	<	else
1029	<	for i := 0 to FParent.FCount - 1 do
1030	<	if FParent[i].FName = FName then
1031	<	FParent[i].xSetAsBoolean(AValue);
1032	<	end;
1033	<
1034	<	procedure TIBXSQLVAR.xSetAsCurrency(Value: Currency);
1035	<	begin
1036	<	if IsNullable then
1037	<	IsNull := False;
1038	<	FXSQLVAR^.sqltype := SQL_INT64 or (FXSQLVAR^.sqltype and 1);
1039	<	FXSQLVAR^.sqlscale := -4;
1040	<	FXSQLVAR^.sqllen := SizeOf(Int64);
1041	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1042	<	PCurrency(FXSQLVAR^.sqldata)^ := Value;
1043	<	FModified := True;
1044	<	end;
1045	<
1046	<	procedure TIBXSQLVAR.SetAsCurrency(Value: Currency);
1047	<	var
1048	<	i: Integer;
1049	<	begin
1050	<	if FSQL.Database.SQLDialect < 3 then
1051	<	AsDouble := Value
1052	<	else
1053	<	begin
1054	<
1055	<	if FUniqueName then
1056	<	xSetAsCurrency(Value)
1057	<	else
1058	<	for i := 0 to FParent.FCount - 1 do
1059	<	if FParent[i].FName = FName then
1060	<	FParent[i].xSetAsCurrency(Value);
1061	<	end;
1062	<	end;
1063	<
1064	<	procedure TIBXSQLVAR.xSetAsInt64(Value: Int64);
1065	<	begin
1066	<	if IsNullable then
1067	<	IsNull := False;
1068	<
1069	<	FXSQLVAR^.sqltype := SQL_INT64 or (FXSQLVAR^.sqltype and 1);
1070	<	FXSQLVAR^.sqlscale := 0;
1071	<	FXSQLVAR^.sqllen := SizeOf(Int64);
1072	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1073	<	PInt64(FXSQLVAR^.sqldata)^ := Value;
1074	<	FModified := True;
1075	<	end;
1076	<
1077	<	procedure TIBXSQLVAR.SetAsInt64(Value: Int64);
1078	<	var
1079	<	i: Integer;
1080	<	begin
1081	<	if FUniqueName then
1082	<	xSetAsInt64(Value)
1083	<	else
1084	<	for i := 0 to FParent.FCount - 1 do
1085	<	if FParent[i].FName = FName then
1086	<	FParent[i].xSetAsInt64(Value);
1087	<	end;
1088	<
1089	<	procedure TIBXSQLVAR.xSetAsDate(Value: TDateTime);
1090	<	var
1091	<	tm_date: TCTimeStructure;
1092	<	Yr, Mn, Dy: Word;
1093	<	begin
1094	<	if IsNullable then
1095	<	IsNull := False;
1096	<
1097	<	FXSQLVAR^.sqltype := SQL_TYPE_DATE or (FXSQLVAR^.sqltype and 1);
1098	<	DecodeDate(Value, Yr, Mn, Dy);
1099	<	with tm_date do begin
1100	<	tm_sec := 0;
1101	<	tm_min := 0;
1102	<	tm_hour := 0;
1103	<	tm_mday := Dy;
1104	<	tm_mon := Mn - 1;
1105	<	tm_year := Yr - 1900;
1106	<	end;
1107	<	FXSQLVAR^.sqllen := SizeOf(ISC_DATE);
1108	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1109	<	isc_encode_sql_date(@tm_date, PISC_DATE(FXSQLVAR^.sqldata));
1110	<	FModified := True;
1111	<	end;
1112	<
1113	<	procedure TIBXSQLVAR.SetAsDate(Value: TDateTime);
1114	<	var
1115	<	i: Integer;
1116	<	begin
1117	<	if FSQL.Database.SQLDialect < 3 then
1118	<	begin
1119	<	AsDateTime := Value;
1120	<	exit;
1121	<	end;
1122	<
1123	<	if FUniqueName then
1124	<	xSetAsDate(Value)
1125	<	else
1126	<	for i := 0 to FParent.FCount - 1 do
1127	<	if FParent[i].FName = FName then
1128	<	FParent[i].xSetAsDate(Value);
1129	<	end;
1130	<
1131	<	procedure TIBXSQLVAR.xSetAsTime(Value: TDateTime);
1132	<	var
1133	<	tm_date: TCTimeStructure;
1134	<	Hr, Mt, S, Ms: Word;
1135	<	begin
1136	<	if IsNullable then
1137	<	IsNull := False;
1138	<
1139	<	FXSQLVAR^.sqltype := SQL_TYPE_TIME or (FXSQLVAR^.sqltype and 1);
1140	<	DecodeTime(Value, Hr, Mt, S, Ms);
1141	<	with tm_date do begin
1142	<	tm_sec := S;
1143	<	tm_min := Mt;
1144	<	tm_hour := Hr;
1145	<	tm_mday := 0;
1146	<	tm_mon := 0;
1147	<	tm_year := 0;
1148	<	end;
1149	<	FXSQLVAR^.sqllen := SizeOf(ISC_TIME);
1150	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1151	<	isc_encode_sql_time(@tm_date, PISC_TIME(FXSQLVAR^.sqldata));
1152	<	if Ms > 0 then
1153	<	Inc(PISC_TIME(FXSQLVAR^.sqldata)^,Ms*10);
1154	<	FModified := True;
1155	<	end;
1156	<
1157	<	procedure TIBXSQLVAR.SetAsTime(Value: TDateTime);
1158	<	var
1159	<	i: Integer;
1160	<	begin
1161	<	if FSQL.Database.SQLDialect < 3 then
1162	<	begin
1163	<	AsDateTime := Value;
1164	<	exit;
1165	<	end;
1166	<
1167	<	if FUniqueName then
1168	<	xSetAsTime(Value)
1169	<	else
1170	<	for i := 0 to FParent.FCount - 1 do
1171	<	if FParent[i].FName = FName then
1172	<	FParent[i].xSetAsTime(Value);
1173	<	end;
1174	<
1175	<	procedure TIBXSQLVAR.xSetAsDateTime(Value: TDateTime);
1176	<	var
1177	<	tm_date: TCTimeStructure;
1178	<	Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
1179	<	begin
1180	<	if IsNullable then
1181	<	IsNull := False;
1182	<
1183	<	FXSQLVAR^.sqltype := SQL_TIMESTAMP or (FXSQLVAR^.sqltype and 1);
1184	<	DecodeDate(Value, Yr, Mn, Dy);
1185	<	DecodeTime(Value, Hr, Mt, S, Ms);
1186	<	with tm_date do begin
1187	<	tm_sec := S;
1188	<	tm_min := Mt;
1189	<	tm_hour := Hr;
1190	<	tm_mday := Dy;
1191	<	tm_mon := Mn - 1;
1192	<	tm_year := Yr - 1900;
1193	<	end;
1194	<	FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1195	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1196	<	isc_encode_date(@tm_date, PISC_QUAD(FXSQLVAR^.sqldata));
1197	<	if Ms > 0 then
1198	<	Inc(PISC_TIMESTAMP(FXSQLVAR^.sqldata)^.timestamp_time,Ms*10);
1199	<	FModified := True;
1200	<	end;
1201	<
1202	<	procedure TIBXSQLVAR.SetAsDateTime(Value: TDateTime);
1203	<	var
1204	<	i: Integer;
1205	<	begin
1206	<	if FUniqueName then
1207	<	xSetAsDateTime(value)
1208	<	else
1209	<	for i := 0 to FParent.FCount - 1 do
1210	<	if FParent[i].FName = FName then
1211	<	FParent[i].xSetAsDateTime(Value);
1212	<	end;
1213	<
1214	<	procedure TIBXSQLVAR.xSetAsDouble(Value: Double);
1215	<	begin
1216	<	if IsNullable then
1217	<	IsNull := False;
1218	<
1219	<	FXSQLVAR^.sqltype := SQL_DOUBLE or (FXSQLVAR^.sqltype and 1);
1220	<	FXSQLVAR^.sqllen := SizeOf(Double);
1221	<	FXSQLVAR^.sqlscale := 0;
1222	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1223	<	PDouble(FXSQLVAR^.sqldata)^ := Value;
1224	<	FModified := True;
1225	<	end;
1226	<
1227	<	procedure TIBXSQLVAR.SetAsDouble(Value: Double);
1228	<	var
1229	<	i: Integer;
1230	<	begin
1231	<	if FUniqueName then
1232	<	xSetAsDouble(Value)
1233	<	else
1234	<	for i := 0 to FParent.FCount - 1 do
1235	<	if FParent[i].FName = FName then
1236	<	FParent[i].xSetAsDouble(Value);
1237	<	end;
1238	<
1239	<	procedure TIBXSQLVAR.xSetAsFloat(Value: Float);
1240	<	begin
1241	<	if IsNullable then
1242	<	IsNull := False;
1243	<
1244	<	FXSQLVAR^.sqltype := SQL_FLOAT or (FXSQLVAR^.sqltype and 1);
1245	<	FXSQLVAR^.sqllen := SizeOf(Float);
1246	<	FXSQLVAR^.sqlscale := 0;
1247	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1248	<	PSingle(FXSQLVAR^.sqldata)^ := Value;
1249	<	FModified := True;
1250	<	end;
1251	<
1252	<	procedure TIBXSQLVAR.SetAsFloat(Value: Float);
1253	<	var
1254	<	i: Integer;
1255	<	begin
1256	<	if FUniqueName then
1257	<	xSetAsFloat(Value)
1258	<	else
1259	<	for i := 0 to FParent.FCount - 1 do
1260	<	if FParent[i].FName = FName then
1261	<	FParent[i].xSetAsFloat(Value);
1262	<	end;
1263	<
1264	<	procedure TIBXSQLVAR.xSetAsLong(Value: Long);
1265	<	begin
1266	<	if IsNullable then
1267	<	IsNull := False;
1268	<
1269	<	FXSQLVAR^.sqltype := SQL_LONG or (FXSQLVAR^.sqltype and 1);
1270	<	FXSQLVAR^.sqllen := SizeOf(Long);
1271	<	FXSQLVAR^.sqlscale := 0;
1272	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1273	<	PLong(FXSQLVAR^.sqldata)^ := Value;
1274	<	FModified := True;
1275	<	end;
1276	<
1277	<	procedure TIBXSQLVAR.SetAsLong(Value: Long);
1278	<	var
1279	<	i: Integer;
1280	<	begin
1281	<	if FUniqueName then
1282	<	xSetAsLong(Value)
1283	<	else
1284	<	for i := 0 to FParent.FCount - 1 do
1285	<	if FParent[i].FName = FName then
1286	<	FParent[i].xSetAsLong(Value);
1287	<	end;
1288	<
1289	<	procedure TIBXSQLVAR.xSetAsPointer(Value: Pointer);
1290	<	begin
1291	<	if IsNullable and (Value = nil) then
1292	<	IsNull := True
1293	<	else begin
1294	<	IsNull := False;
1295	<	FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1296	<	Move(Value^, FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen);
1297	<	end;
1298	<	FModified := True;
1299	<	end;
1300	<
1301	<	procedure TIBXSQLVAR.SetAsPointer(Value: Pointer);
1302	<	var
1303	<	i: Integer;
1304	<	begin
1305	<	if FUniqueName then
1306	<	xSetAsPointer(Value)
1307	<	else
1308	<	for i := 0 to FParent.FCount - 1 do
1309	<	if FParent[i].FName = FName then
1310	<	FParent[i].xSetAsPointer(Value);
1311	<	end;
1312	<
1313	<	procedure TIBXSQLVAR.xSetAsQuad(Value: TISC_QUAD);
1314	<	begin
1315	<	if IsNullable then
1316	<	IsNull := False;
1317	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
1318	<	(FXSQLVAR^.sqltype and (not 1) <> SQL_ARRAY) then
1319	<	IBError(ibxeInvalidDataConversion, [nil]);
1320	<	FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1321	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1322	<	PISC_QUAD(FXSQLVAR^.sqldata)^ := Value;
1323	<	FModified := True;
1324	<	end;
1325	<
1326	<	procedure TIBXSQLVAR.SetAsQuad(Value: TISC_QUAD);
1327	<	var
1328	<	i: Integer;
1329	<	begin
1330	<	if FUniqueName then
1331	<	xSetAsQuad(Value)
1332	<	else
1333	<	for i := 0 to FParent.FCount - 1 do
1334	<	if FParent[i].FName = FName then
1335	<	FParent[i].xSetAsQuad(Value);
1336	<	end;
1337	<
1338	<	procedure TIBXSQLVAR.xSetAsShort(Value: Short);
1339	<	begin
1340	<	if IsNullable then
1341	<	IsNull := False;
1342	<
1343	<	FXSQLVAR^.sqltype := SQL_SHORT or (FXSQLVAR^.sqltype and 1);
1344	<	FXSQLVAR^.sqllen := SizeOf(Short);
1345	<	FXSQLVAR^.sqlscale := 0;
1346	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1347	<	PShort(FXSQLVAR^.sqldata)^ := Value;
1348	<	FModified := True;
1349	<	end;
1350	<
1351	<	procedure TIBXSQLVAR.SetAsShort(Value: Short);
1352	<	var
1353	<	i: Integer;
1354	<	begin
1355	<	if FUniqueName then
1356	<	xSetAsShort(Value)
1357	<	else
1358	<	for i := 0 to FParent.FCount - 1 do
1359	<	if FParent[i].FName = FName then
1360	<	FParent[i].xSetAsShort(Value);
1361	<	end;
1362	<
1363	<	procedure TIBXSQLVAR.xSetAsString(Value: String);
1364	<	var
1365	<	stype: Integer;
1366	<	ss: TStringStream;
1367	<
1368	<	procedure SetStringValue;
1369	<	var
1370	<	i: Integer;
1371	<	begin
1372	<	if (FXSQLVAR^.sqlname = 'DB_KEY') or {do not localize}
1373	<	(FXSQLVAR^.sqlname = 'RDB$DB_KEY') then {do not localize}
1374	<	Move(Value[1], FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen)
1375	<	else begin
1376	<	FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1377	<	FXSQLVAR^.sqllen := Length(Value);
1378	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen + 1);
1379	<	if (Length(Value) > 0) then
1380	<	Move(Value[1], FXSQLVAR^.sqldata^, FXSQLVAR^.sqllen);
1381	<	end;
1382	<	FModified := True;
1383	<	end;
1384	<
1385	<	begin
1386	<	if IsNullable then
1387	<	IsNull := False;
241	>	Variants, IBSQLMonitor, FBMessages, IBCustomDataSet;
242
243	<	stype := FXSQLVAR^.sqltype and (not 1);
1390	<	if (stype = SQL_TEXT) or (stype = SQL_VARYING) then
1391	<	SetStringValue
1392	<	else begin
1393	<	if (stype = SQL_BLOB) then
1394	<	begin
1395	<	ss := TStringStream.Create(Value);
1396	<	try
1397	<	LoadFromStream(ss);
1398	<	finally
1399	<	ss.Free;
1400	<	end;
1401	<	end
1402	<	else if Value = '' then
1403	<	IsNull := True
1404	<	else if (stype = SQL_TIMESTAMP) or (stype = SQL_TYPE_DATE) or
1405	<	(stype = SQL_TYPE_TIME) then
1406	<	xSetAsDateTime(StrToDateTime(Value))
1407	<	else
1408	<	SetStringValue;
1409	<	end;
1410	<	end;
1411	<
1412	<	procedure TIBXSQLVAR.SetAsString(Value: String);
1413	<	var
1414	<	i: integer;
1415	<	begin
1416	<	if FUniqueName then
1417	<	xSetAsString(Value)
1418	<	else
1419	<	for i := 0 to FParent.FCount - 1 do
1420	<	if FParent[i].FName = FName then
1421	<	FParent[i].xSetAsString(Value);
1422	<	end;
1423	<
1424	<	procedure TIBXSQLVAR.xSetAsVariant(Value: Variant);
1425	<	begin
1426	<	if VarIsNull(Value) then
1427	<	IsNull := True
1428	<	else case VarType(Value) of
1429	<	varEmpty, varNull:
1430	<	IsNull := True;
1431	<	varSmallint, varInteger, varByte,
1432	<	varWord, varShortInt:
1433	<	AsLong := Value;
1434	<	varInt64:
1435	<	AsInt64 := Value;
1436	<	varSingle, varDouble:
1437	<	AsDouble := Value;
1438	<	varCurrency:
1439	<	AsCurrency := Value;
1440	<	varBoolean:
1441	<	AsBoolean := Value;
1442	<	varDate:
1443	<	AsDateTime := Value;
1444	<	varOleStr, varString:
1445	<	AsString := Value;
1446	<	varArray:
1447	<	IBError(ibxeNotSupported, [nil]);
1448	<	varByRef, varDispatch, varError, varUnknown, varVariant:
1449	<	IBError(ibxeNotPermitted, [nil]);
1450	<	end;
1451	<	end;
1452	<
1453	<	procedure TIBXSQLVAR.SetAsVariant(Value: Variant);
1454	<	var
1455	<	i: integer;
1456	<	begin
1457	<	if FUniqueName then
1458	<	xSetAsVariant(Value)
1459	<	else
1460	<	for i := 0 to FParent.FCount - 1 do
1461	<	if FParent[i].FName = FName then
1462	<	FParent[i].xSetAsVariant(Value);
1463	<	end;
1464	<
1465	<	procedure TIBXSQLVAR.xSetAsXSQLVAR(Value: PXSQLVAR);
1466	<	var
1467	<	sqlind: PShort;
1468	<	sqldata: PChar;
1469	<	local_sqllen: Integer;
1470	<	begin
1471	<	sqlind := FXSQLVAR^.sqlind;
1472	<	sqldata := FXSQLVAR^.sqldata;
1473	<	Move(Value^, FXSQLVAR^, SizeOf(TXSQLVAR));
1474	<	FXSQLVAR^.sqlind := sqlind;
1475	<	FXSQLVAR^.sqldata := sqldata;
1476	<	if (Value^.sqltype and 1 = 1) then
1477	<	begin
1478	<	if (FXSQLVAR^.sqlind = nil) then
1479	<	IBAlloc(FXSQLVAR^.sqlind, 0, SizeOf(Short));
1480	<	FXSQLVAR^.sqlind^ := Value^.sqlind^;
1481	<	end
1482	<	else
1483	<	if (FXSQLVAR^.sqlind <> nil) then
1484	<	ReallocMem(FXSQLVAR^.sqlind, 0);
1485	<	if ((FXSQLVAR^.sqltype and (not 1)) = SQL_VARYING) then
1486	<	local_sqllen := FXSQLVAR^.sqllen + 2
1487	<	else
1488	<	local_sqllen := FXSQLVAR^.sqllen;
1489	<	FXSQLVAR^.sqlscale := Value^.sqlscale;
1490	<	IBAlloc(FXSQLVAR^.sqldata, 0, local_sqllen);
1491	<	Move(Value^.sqldata[0], FXSQLVAR^.sqldata[0], local_sqllen);
1492	<	FModified := True;
1493	<	end;
1494	<
1495	<	procedure TIBXSQLVAR.SetAsXSQLVAR(Value: PXSQLVAR);
243	>	procedure IBAlloc(var P; OldSize, NewSize: Integer);
244		var
245		i: Integer;
246		begin
247	<	if FUniqueName then
248	<	xSetAsXSQLVAR(Value)
1501	<	else
1502	<	for i := 0 to FParent.FCount - 1 do
1503	<	if FParent[i].FName = FName then
1504	<	FParent[i].xSetAsXSQLVAR(Value);
1505	<	end;
1506	<
1507	<	procedure TIBXSQLVAR.xSetIsNull(Value: Boolean);
1508	<	begin
1509	<	if Value then
1510	<	begin
1511	<	if not IsNullable then
1512	<	IsNullable := True;
1513	<
1514	<	if Assigned(FXSQLVAR^.sqlind) then
1515	<	FXSQLVAR^.sqlind^ := -1;
1516	<	FModified := True;
1517	<	end
1518	<	else
1519	<	if ((not Value) and IsNullable) then
1520	<	begin
1521	<	if Assigned(FXSQLVAR^.sqlind) then
1522	<	FXSQLVAR^.sqlind^ := 0;
1523	<	FModified := True;
1524	<	end;
1525	<	end;
1526	<
1527	<	procedure TIBXSQLVAR.SetIsNull(Value: Boolean);
1528	<	var
1529	<	i: Integer;
1530	<	begin
1531	<	if FUniqueName then
1532	<	xSetIsNull(Value)
1533	<	else
1534	<	for i := 0 to FParent.FCount - 1 do
1535	<	if FParent[i].FName = FName then
1536	<	FParent[i].xSetIsNull(Value);
1537	<	end;
1538	<
1539	<	procedure TIBXSQLVAR.xSetIsNullable(Value: Boolean);
1540	<	begin
1541	<	if (Value <> IsNullable) then
1542	<	begin
1543	<	if Value then
1544	<	begin
1545	<	FXSQLVAR^.sqltype := FXSQLVAR^.sqltype or 1;
1546	<	IBAlloc(FXSQLVAR^.sqlind, 0, SizeOf(Short));
1547	<	end
1548	<	else
1549	<	begin
1550	<	FXSQLVAR^.sqltype := FXSQLVAR^.sqltype and (not 1);
1551	<	ReallocMem(FXSQLVAR^.sqlind, 0);
1552	<	end;
1553	<	end;
1554	<	end;
1555	<
1556	<	procedure TIBXSQLVAR.SetIsNullable(Value: Boolean);
1557	<	var
1558	<	i: Integer;
1559	<	begin
1560	<	if FUniqueName then
1561	<	xSetIsNullable(Value)
1562	<	else
1563	<	for i := 0 to FParent.FCount - 1 do
1564	<	if FParent[i].FName = FName then
1565	<	FParent[i].xSetIsNullable(Value);
1566	<	end;
1567	<
1568	<	procedure TIBXSQLVAR.xSetAsBoolean(AValue: boolean);
1569	<	begin
1570	<	if IsNullable then
1571	<	IsNull := False;
1572	<
1573	<	FXSQLVAR^.sqltype := SQL_BOOLEAN;
1574	<	FXSQLVAR^.sqllen := 1;
1575	<	FXSQLVAR^.sqlscale := 0;
1576	<	IBAlloc(FXSQLVAR^.sqldata, 0, FXSQLVAR^.sqllen);
1577	<	if AValue then
1578	<	PByte(FXSQLVAR^.sqldata)^ := ISC_TRUE
1579	<	else
1580	<	PByte(FXSQLVAR^.sqldata)^ := ISC_FALSE;
1581	<	FModified := True;
1582	<	end;
1583	<
1584	<	procedure TIBXSQLVAR.Clear;
1585	<	begin
1586	<	IsNull := true;
1587	<	end;
1588	<
1589	<
1590	<	{ TIBXSQLDA }
1591	<	constructor TIBXSQLDA.Create(Query: TIBSQL; sqldaType: TIBXSQLDAType);
1592	<	begin
1593	<	inherited Create;
1594	<	FSQL := Query;
1595	<	FSize := 0;
1596	<	FUniqueRelationName := '';
1597	<	FInputSQLDA := sqldaType = daInput;
1598	<	end;
1599	<
1600	<	destructor TIBXSQLDA.Destroy;
1601	<	var
1602	<	i: Integer;
1603	<	begin
1604	<	if FXSQLDA <> nil then
1605	<	begin
1606	<	for i := 0 to FSize - 1 do
1607	<	begin
1608	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqldata);
1609	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqlind);
1610	<	FXSQLVARs[i].Free ;
1611	<	end;
1612	<	FreeMem(FXSQLDA);
1613	<	FXSQLDA := nil;
1614	<	FXSQLVARs := nil;
1615	<	end;
1616	<	inherited Destroy;
1617	<	end;
1618	<
1619	<	procedure TIBXSQLDA.SetParamName(FieldName: String; Idx: Integer;
1620	<	UniqueName: boolean);
1621	<	var
1622	<	fn: string;
1623	<	begin
1624	<	{$ifdef UseCaseSensitiveParamName}
1625	<	FXSQLVARs[Idx].FName := AnsiUpperCase(FieldName);
1626	<	{$else}
1627	<	FXSQLVARs[Idx].FName := FieldName;
1628	<	{$endif}
1629	<	FXSQLVARs[Idx].FIndex := Idx;
1630	<	FXSQLVARs[Idx].FUniqueName :=  UniqueName
1631	<	end;
1632	<
1633	<	function TIBXSQLDA.GetModified: Boolean;
1634	<	var
1635	<	i: Integer;
1636	<	begin
1637	<	result := False;
1638	<	for i := 0 to FCount - 1 do
1639	<	if FXSQLVARs[i].Modified then
1640	<	begin
1641	<	result := True;
1642	<	exit;
1643	<	end;
1644	<	end;
1645	<
1646	<	function TIBXSQLDA.GetRecordSize: Integer;
1647	<	begin
1648	<	result := SizeOf(TIBXSQLDA) + XSQLDA_LENGTH(FSize);
1649	<	end;
1650	<
1651	<	function TIBXSQLDA.GetXSQLDA: PXSQLDA;
1652	<	begin
1653	<	result := FXSQLDA;
1654	<	end;
1655	<
1656	<	function TIBXSQLDA.GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
1657	<	begin
1658	<	if (Idx < 0) or (Idx >= FCount) then
1659	<	IBError(ibxeXSQLDAIndexOutOfRange, [nil]);
1660	<	result := FXSQLVARs[Idx]
1661	<	end;
1662	<
1663	<	function TIBXSQLDA.ByName(Idx: String): TIBXSQLVAR;
1664	<	begin
1665	<	result := GetXSQLVARByName(Idx);
1666	<	if result = nil then
1667	<	IBError(ibxeFieldNotFound, [Idx]);
1668	<	end;
1669	<
1670	<	function TIBXSQLDA.GetXSQLVARByName(Idx: String): TIBXSQLVAR;
1671	<	var
1672	<	s: String;
1673	<	i: Integer;
1674	<	begin
1675	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
1676	<	s := FormatIdentifierValueNC(FSQL.Database.SQLDialect, Idx);
1677	<	{$else}
1678	<	{$ifdef UseCaseSensitiveParamName}
1679	<	s := AnsiUpperCase(Idx);
1680	<	{$else}
1681	<	s := Idx;
1682	<	{$endif}
1683	<	{$endif}
1684	<	for i := 0 to FCount - 1 do
1685	<	if Vars[i].FName = s then
1686	<	begin
1687	<	Result := FXSQLVARs[i];
1688	<	Exit;
1689	<	end;
1690	<	Result := nil;
1691	<	end;
1692	<
1693	<	procedure TIBXSQLDA.Initialize;
1694	<
1695	<	function VarByName(idx: string; limit: integer): TIBXSQLVAR;
1696	<	var
1697	<	k: integer;
1698	<	begin
1699	<	for k := 0 to limit do
1700	<	if FXSQLVARs[k].FName = idx then
1701	<	begin
1702	<	Result := FXSQLVARs[k];
1703	<	Exit;
1704	<	end;
1705	<	Result := nil;
1706	<	end;
1707	<
1708	<	var
1709	<	i, j, j_len: Integer;
1710	<	st: String;
1711	<	bUnique: Boolean;
1712	<	sBaseName: string;
1713	<	begin
1714	<	bUnique := True;
1715	<	if FXSQLDA <> nil then
1716	<	begin
1717	<	for i := 0 to FCount - 1 do
1718	<	begin
1719	<	with FXSQLVARs[i].Data^ do
1720	<	begin
1721	<
1722	<	{First get the unique relation name, if any}
1723	<
1724	<	if bUnique and (strpas(relname) <> '') then
1725	<	begin
1726	<	if FUniqueRelationName = '' then
1727	<	FUniqueRelationName := strpas(relname)
1728	<	else
1729	<	if strpas(relname) <> FUniqueRelationName then
1730	<	begin
1731	<	FUniqueRelationName := '';
1732	<	bUnique := False;
1733	<	end;
1734	<	end;
1735	<
1736	<	{If an output SQLDA then copy the aliasnames to the FName list. Ensure
1737	<	that they are all upper case only and disambiguated.
1738	<	}
1739	<
1740	<	if not FInputSQLDA then
1741	<	begin
1742	<	st := Space2Underscore(AnsiUppercase(strpas(aliasname)));
1743	<	if st = '' then
1744	<	begin
1745	<	sBaseName := 'F_'; {do not localize}
1746	<	aliasname_length := 2;
1747	<	j := 1; j_len := 1;
1748	<	st := sBaseName + IntToStr(j);
1749	<	end
1750	<	else
1751	<	begin
1752	<	j := 0; j_len := 0;
1753	<	sBaseName := st;
1754	<	end;
1755	<
1756	<	{Look for other columns with the same name and make unique}
1757	<
1758	<	while VarByName(st,i-1) <> nil do
1759	<	begin
1760	<	Inc(j);
1761	<	j_len := Length(IntToStr(j));
1762	<	if j_len + Length(sBaseName) > 31 then
1763	<	st := Copy(sBaseName, 1, 31 - j_len) + IntToStr(j)
1764	<	else
1765	<	st := sBaseName + IntToStr(j);
1766	<	end;
1767	<
1768	<	FXSQLVARs[i].FName := st;
1769	<	end;
1770	<
1771	<	{Finally initialise the XSQLVAR}
1772	<
1773	<	FXSQLVARs[i].FIndex := i;
1774	<
1775	<	case sqltype and (not 1) of
1776	<	SQL_TEXT, SQL_TYPE_DATE, SQL_TYPE_TIME, SQL_TIMESTAMP,
1777	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD, SQL_SHORT, SQL_BOOLEAN,
1778	<	SQL_LONG, SQL_INT64, SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT: begin
1779	<	if (sqllen = 0) then
1780	<	{ Make sure you get a valid pointer anyway
1781	<	select '' from foo }
1782	<	IBAlloc(sqldata, 0, 1)
1783	<	else
1784	<	IBAlloc(sqldata, 0, sqllen)
1785	<	end;
1786	<	SQL_VARYING: begin
1787	<	IBAlloc(sqldata, 0, sqllen + 2);
1788	<	end;
1789	<	else
1790	<	IBError(ibxeUnknownSQLDataType, [sqltype and (not 1)])
1791	<	end;
1792	<	if (sqltype and 1 = 1) then
1793	<	IBAlloc(sqlind, 0, SizeOf(Short))
1794	<	else
1795	<	if (sqlind <> nil) then
1796	<	ReallocMem(sqlind, 0);
1797	<	end;
1798	<	end;
1799	<	end;
1800	<	end;
1801	<
1802	<	procedure TIBXSQLDA.SetCount(Value: Integer);
1803	<	var
1804	<	i, OldSize: Integer;
1805	<	p : PXSQLVAR;
1806	<	begin
1807	<	FCount := Value;
1808	<	if FCount = 0 then
1809	<	FUniqueRelationName := ''
1810	<	else
1811	<	begin
1812	<	if FSize > 0 then
1813	<	OldSize := XSQLDA_LENGTH(FSize)
1814	<	else
1815	<	OldSize := 0;
1816	<	if FCount > FSize then
1817	<	begin
1818	<	IBAlloc(FXSQLDA, OldSize, XSQLDA_LENGTH(FCount));
1819	<	SetLength(FXSQLVARs, FCount);
1820	<	FXSQLDA^.version := SQLDA_VERSION1;
1821	<	p := @FXSQLDA^.sqlvar[0];
1822	<	for i := 0 to FCount - 1 do
1823	<	begin
1824	<	if i >= FSize then
1825	<	FXSQLVARs[i] := TIBXSQLVAR.Create(self, FSQL);
1826	<	FXSQLVARs[i].FXSQLVAR := p;
1827	<	p := Pointer(PChar(p) + sizeof(FXSQLDA^.sqlvar));
1828	<	end;
1829	<	FSize := FCount;
1830	<	end;
1831	<	if FSize > 0 then
1832	<	begin
1833	<	FXSQLDA^.sqln := Value;
1834	<	FXSQLDA^.sqld := Value;
1835	<	end;
1836	<	end;
247	>	ReallocMem(Pointer(P), NewSize);
248	>	for i := OldSize to NewSize - 1 do PChar(P)[i] := #0;
249		end;
250
251		{ TIBOutputDelimitedFile }
#	Line 1879 | Line 291 | begin
291		begin
292		for i := 0 to Columns.Count - 1 do
293		if i = 0 then
294	<	st := strpas(Columns[i].Data^.aliasname)
294	>	st := Columns[i].GetAliasname
295		else
296	<	st := st + FColDelimiter + strpas(Columns[i].Data^.aliasname);
296	>	st := st + FColDelimiter + Columns[i].GetAliasname;
297		st := st + FRowDelimiter;
298		{$IFDEF UNIX}
299		if FHandle <> -1 then
#	Line 2072 | Line 484 | begin
484		for i := 0 to Columns.Count - 1 do
485		begin
486		{$IFDEF UNIX}
487	<	BytesWritten := FpWrite(FHandle,Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen);
487	>	BytesWritten := FpWrite(FHandle,Columns[i].GetAsPointer^, Columns[i].GetSize);
488		{$ELSE}
489	<	WriteFile(FHandle, Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen,
489	>	WriteFile(FHandle, Columns[i].GetAsPointer^, Columns[i].GetSize,
490		BytesWritten, nil);
491		{$ENDIF}
492	<	if BytesWritten <> DWORD(Columns[i].Data^.sqllen) then
492	>	if BytesWritten <> DWORD(Columns[i].GetSize) then
493		exit;
494		end;
495		result := True;
#	Line 2112 | Line 524 | begin
524		for i := 0 to Params.Count - 1 do
525		begin
526		{$IFDEF UNIX}
527	<	BytesRead := FpRead(FHandle,Params[i].Data^.sqldata^,Params[i].Data^.sqllen);
527	>	BytesRead := FpRead(FHandle,Params[i].GetAsPointer^,Params[i].GetSize);
528		{$ELSE}
529	<	ReadFile(FHandle, Params[i].Data^.sqldata^, Params[i].Data^.sqllen,
529	>	ReadFile(FHandle, Params[i].GetAsPointer^, Params[i].GetSize,
530		BytesRead, nil);
531		{$ENDIF}
532	<	if BytesRead <> DWORD(Params[i].Data^.sqllen) then
532	>	if BytesRead <> DWORD(Params[i].GetSize) then
533		exit;
534		end;
535		result := True;
#	Line 2144 | Line 556 | end;
556
557		{ TIBSQL }
558		constructor TIBSQL.Create(AOwner: TComponent);
2147	–	var  GUID : TGUID;
559		begin
560		inherited Create(AOwner);
2150	–	FIBLoaded := False;
2151	–	CheckIBLoaded;
2152	–	FIBLoaded := True;
561		FGenerateParamNames := False;
562		FGoToFirstRecordOnExecute := True;
563		FBase := TIBBase.Create(Self);
564		FBase.BeforeDatabaseDisconnect := DoBeforeDatabaseDisconnect;
565		FBase.BeforeTransactionEnd := BeforeTransactionEnd;
2158	–	FBOF := False;
2159	–	FEOF := False;
2160	–	FPrepared := False;
566		FRecordCount := 0;
567		FSQL := TStringList.Create;
568		TStringList(FSQL).OnChanging := SQLChanging;
569		TStringList(FSQL).OnChange := SQLChanged;
2165	–	FProcessedSQL := TStringList.Create;
2166	–	FHandle := nil;
2167	–	FSQLParams := TIBXSQLDA.Create(self,daInput);
2168	–	FSQLRecord := TIBXSQLDA.Create(self,daOutput);
2169	–	FSQLType := SQLUnknown;
570		FParamCheck := True;
2171	–	CreateGuid(GUID);
2172	–	FCursor := GUIDToString(GUID);
571		if AOwner is TIBDatabase then
572		Database := TIBDatabase(AOwner)
573		else
#	Line 2179 | Line 577 | end;
577
578		destructor TIBSQL.Destroy;
579		begin
580	<	if FIBLoaded then
581	<	begin
582	<	if (FOpen) then
2185	<	Close;
2186	<	if (FHandle <> nil) then
2187	<	FreeHandle;
2188	<	FSQL.Free;
2189	<	FProcessedSQL.Free;
2190	<	FBase.Free;
2191	<	FSQLParams.Free;
2192	<	FSQLRecord.Free;
2193	<	end;
580	>	FreeHandle;
581	>	FSQL.Free;
582	>	FBase.Free;
583		inherited Destroy;
584		end;
585
#	Line 2198 | Line 587 | procedure TIBSQL.BatchInput(InputObject:
587		begin
588		if not Prepared then
589		Prepare;
590	<	InputObject.FParams := Self.FSQLParams;
590	>	InputObject.FParams := Self.GetSQLParams;
591		InputObject.ReadyFile;
592	<	if FSQLType in [SQLInsert, SQLUpdate, SQLDelete, SQLExecProcedure] then
592	>	if GetSQLStatementType in [SQLInsert, SQLUpdate, SQLDelete, SQLExecProcedure] then
593		while InputObject.ReadParameters do
594		ExecQuery;
595		end;
#	Line 2210 | Line 599 | begin
599		CheckClosed;
600		if not Prepared then
601		Prepare;
602	<	if FSQLType = SQLSelect then begin
602	>	if GetSQLStatementType = SQLSelect then begin
603		try
604		ExecQuery;
605	<	OutputObject.FColumns := Self.FSQLRecord;
605	>	OutputObject.FColumns := Self.FResults;
606		OutputObject.ReadyFile;
607		if not FGoToFirstRecordOnExecute then
608		Next;
#	Line 2227 | Line 616 | end;
616
617		procedure TIBSQL.CheckClosed;
618		begin
619	<	if FOpen then IBError(ibxeSQLOpen, [nil]);
619	>	if FResultSet <> nil  then IBError(ibxeSQLOpen, [nil]);
620		end;
621
622		procedure TIBSQL.CheckOpen;
623		begin
624	<	if not FOpen then IBError(ibxeSQLClosed, [nil]);
624	>	if FResultSet = nil then IBError(ibxeSQLClosed, [nil]);
625		end;
626
627		procedure TIBSQL.CheckValidStatement;
628		begin
629		FBase.CheckTransaction;
630	<	if (FHandle = nil) then
630	>	if (FStatement = nil) then
631		IBError(ibxeInvalidStatementHandle, [nil]);
632		end;
633
634		procedure TIBSQL.Close;
2246	–	var
2247	–	isc_res: ISC_STATUS;
635		begin
636	<	try
637	<	if (FHandle <> nil) and (SQLType = SQLSelect) and FOpen then begin
638	<	isc_res := Call(
639	<	isc_dsql_free_statement(StatusVector, @FHandle, DSQL_close),
640	<	False);
641	<	if (StatusVector^ = 1) and (isc_res > 0) and
642	<	not CheckStatusVector(
2256	<	[isc_bad_stmt_handle, isc_dsql_cursor_close_err]) then
2257	<	IBDatabaseError;
2258	<	end;
2259	<	finally
2260	<	FEOF := False;
2261	<	FBOF := False;
2262	<	FOpen := False;
2263	<	FRecordCount := 0;
2264	<	end;
636	>	if FResults <> nil then
637	>	FResults.SetRetainInterfaces(false);
638	>	FResultSet := nil;
639	>	FResults := nil;
640	>	FBOF := false;
641	>	FEOF := false;
642	>	FRecordCount := 0;
643		end;
644
645	<	function TIBSQL.Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
645	>	function TIBSQL.GetFieldCount: integer;
646		begin
647	<	result := 0;
648	<	if Transaction <> nil then
649	<	result := Transaction.Call(ErrCode, RaiseError)
647	>	if FResults <> nil then
648	>	Result := FResults.GetCount
649	>	else
650	>	if FMetaData <> nil then
651	>	Result := FMetaData.GetCount
652		else
653	<	if RaiseError and (ErrCode > 0) then
2274	<	IBDataBaseError;
653	>	Result := 0;
654		end;
655
656	<	function TIBSQL.Current: TIBXSQLDA;
656	>	function TIBSQL.GetOpen: Boolean;
657		begin
658	<	result := FSQLRecord;
658	>	Result := FResultSet <> nil;
659		end;
660
661	<	function TIBSQL.GetFieldCount: integer;
661	>	function TIBSQL.GetPrepared: Boolean;
662	>	begin
663	>	Result := (FStatement <> nil) and FStatement.IsPrepared;
664	>	end;
665	>
666	>	function TIBSQL.GetSQLStatementType: TIBSQLStatementTypes;
667		begin
668	<	Result := FSQLRecord.Count
668	>	if FStatement = nil then
669	>	Result := SQLUnknown
670	>	else
671	>	Result := FStatement.GetSQLStatementType;
672		end;
673
674		procedure TIBSQL.SetUniqueParamNames(AValue: Boolean);
#	Line 2293 | Line 680 | end;
680
681		procedure TIBSQL.DoBeforeDatabaseDisconnect(Sender: TObject);
682		begin
683	<	if (FHandle <> nil) then begin
2297	<	Close;
2298	<	FreeHandle;
2299	<	end;
683	>	FreeHandle;
684		end;
685
686		procedure TIBSQL.ExecQuery;
#	Line 2306 | Line 690 | begin
690		CheckClosed;
691		if not Prepared then Prepare;
692		CheckValidStatement;
693	<	case FSQLType of
694	<	SQLSelect: begin
695	<	Call(isc_dsql_execute2(StatusVector,
696	<	TRHandle,
697	<	@FHandle,
698	<	Database.SQLDialect,
699	<	FSQLParams.AsXSQLDA,
700	<	nil), True);
701	<	Call(
702	<	isc_dsql_set_cursor_name(StatusVector, @FHandle, PChar(FCursor), 0),
703	<	True);
704	<	FOpen := True;
705	<	FBOF := True;
706	<	FEOF := False;
707	<	FRecordCount := 0;
708	<	if not (csDesigning in ComponentState) then
709	<	MonitorHook.SQLExecute(Self);
710	<	if FGoToFirstRecordOnExecute then
2327	<	Next;
2328	<	end;
2329	<	SQLExecProcedure: begin
2330	<	fetch_res := Call(isc_dsql_execute2(StatusVector,
2331	<	TRHandle,
2332	<	@FHandle,
2333	<	Database.SQLDialect,
2334	<	FSQLParams.AsXSQLDA,
2335	<	FSQLRecord.AsXSQLDA), True);
2336	<	if not (csDesigning in ComponentState) then
2337	<	MonitorHook.SQLExecute(Self);
2338	<	(*      if (fetch_res <> 0) and (fetch_res <> isc_deadlock) then
2339	<	begin
2340	<	{ Sometimes a prepared stored procedure appears to get
2341	<	off sync on the server ....This code is meant to try
2342	<	to work around the problem simply by "retrying". This
2343	<	need to be reproduced and fixed.
2344	<	}
2345	<	isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
2346	<	PChar(FProcessedSQL.Text), 1, nil);
2347	<	Call(isc_dsql_execute2(StatusVector,
2348	<	TRHandle,
2349	<	@FHandle,
2350	<	Database.SQLDialect,
2351	<	FSQLParams.AsXSQLDA,
2352	<	FSQLRecord.AsXSQLDA), True);
2353	<	end;  *)
2354	<	end
2355	<	else
2356	<	Call(isc_dsql_execute(StatusVector,
2357	<	TRHandle,
2358	<	@FHandle,
2359	<	Database.SQLDialect,
2360	<	FSQLParams.AsXSQLDA), True);
2361	<	if not (csDesigning in ComponentState) then
2362	<	MonitorHook.SQLExecute(Self);
693	>	if SQLStatementType = SQLSelect then
694	>	begin
695	>	FResultSet := FStatement.OpenCursor;
696	>	FResults := FResultSet;
697	>	FResults.SetRetainInterfaces(true);
698	>	FBOF := True;
699	>	FEOF := False;
700	>	FRecordCount := 0;
701	>	if not (csDesigning in ComponentState) then
702	>	MonitorHook.SQLExecute(Self);
703	>	if FGoToFirstRecordOnExecute then
704	>	Next;
705	>	end
706	>	else
707	>	begin
708	>	FResults := FStatement.Execute;
709	>	if not (csDesigning in ComponentState) then
710	>	MonitorHook.SQLExecute(Self);
711		end;
712		FBase.DoAfterExecQuery(self);
713	<	//  writeln('Rows Affected = ',RowsAffected);
713	>	end;
714	>
715	>	function TIBSQL.HasField(FieldName: String): boolean;
716	>	begin
717	>	if FResults = nil then
718	>	IBError(ibxeNoFieldAccess,[nil]);
719	>
720	>	Result := FResults.ByName(FieldName) <> nil;
721		end;
722
723		function TIBSQL.GetEOF: Boolean;
724		begin
725	<	result := FEOF or not FOpen;
725	>	result := FEOF or (FResultSet = nil);
726		end;
727
728	<	function TIBSQL.FieldByName(FieldName: String): TIBXSQLVAR;
2374	<	var
2375	<	i: Integer;
728	>	function TIBSQL.FieldByName(FieldName: String): ISQLData;
729		begin
730	<	i := GetFieldIndex(FieldName);
731	<	if (i < 0) then
730	>	if FResults = nil then
731	>	IBError(ibxeNoFieldAccess,[nil]);
732	>
733	>	Result := FResults.ByName(FieldName);
734	>
735	>	if Result = nil then
736		IBError(ibxeFieldNotFound, [FieldName]);
2380	–	result := GetFields(i);
737		end;
738
739	<	function TIBSQL.ParamByName(ParamName: String): TIBXSQLVAR;
739	>	function TIBSQL.ParamByName(ParamName: String): ISQLParam;
740		begin
741		Result := Params.ByName(ParamName);
742		end;
743
744	<	function TIBSQL.GetFields(const Idx: Integer): TIBXSQLVAR;
744	>	function TIBSQL.GetFields(const Idx: Integer): ISQLData;
745		begin
746	<	if (Idx < 0) or (Idx >= FSQLRecord.Count) then
746	>	if FResults = nil then
747	>	IBError(ibxeNoFieldAccess,[nil]);
748	>
749	>	if (Idx < 0) or (Idx >= FResults.GetCount) then
750		IBError(ibxeFieldNotFound, [IntToStr(Idx)]);
751	<	result := FSQLRecord[Idx];
751	>	result := FResults[Idx];
752		end;
753
754		function TIBSQL.GetFieldIndex(FieldName: String): Integer;
755	+	var Field: IColumnMetaData;
756		begin
757	<	if (FSQLRecord.GetXSQLVarByName(FieldName) = nil) then
757	>	if FMetaData = nil then
758	>	IBError(ibxeNoFieldAccess,[nil]);
759	>
760	>	Field := FMetaData.ByName(FieldName);
761	>
762	>	if Field = nil then
763		result := -1
764		else
765	<	result := FSQLRecord.GetXSQLVarByName(FieldName).Index;
765	>	result := Field.GetIndex;
766		end;
767
768	<	function TIBSQL.Next: TIBXSQLDA;
2404	<	var
2405	<	fetch_res: ISC_STATUS;
768	>	function TIBSQL.Next: boolean;
769		begin
770	<	result := nil;
771	<	if not FEOF then begin
770	>	result := false;
771	>	if not FEOF then
772	>	begin
773		CheckOpen;
774	<	{ Go to the next record... }
775	<	fetch_res :=
776	<	Call(isc_dsql_fetch(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.AsXSQLDA), False);
777	<	if (fetch_res = 100) or (CheckStatusVector([isc_dsql_cursor_err])) then begin
778	<	FEOF := True;
779	<	end else if (fetch_res > 0) then begin
780	<	try
781	<	IBDataBaseError;
782	<	except
2419	<	Close;
2420	<	raise;
2421	<	end;
2422	<	end else begin
774	>	try
775	>	Result := FResultSet.FetchNext;
776	>	except
777	>	Close;
778	>	raise;
779	>	end;
780	>
781	>	if Result then
782	>	begin
783		Inc(FRecordCount);
784		FBOF := False;
785	<	result := FSQLRecord;
786	<	end;
785	>	end
786	>	else
787	>	FEOF := true;
788	>
789		if not (csDesigning in ComponentState) then
790		MonitorHook.SQLFetch(Self);
791		end;
792		end;
793
794		procedure TIBSQL.FreeHandle;
2433	–	var
2434	–	isc_res: ISC_STATUS;
795		begin
796	<	try
797	<	{ The following two lines merely set the SQLDA count
798	<	variable FCount to 0, but do not deallocate
799	<	That way the allocations can be reused for
800	<	a new query sring in the same SQL instance }
801	<	FSQLRecord.Count := 0;
802	<	FSQLParams.Count := 0;
803	<	if FHandle <> nil then begin
2444	<	isc_res :=
2445	<	Call(isc_dsql_free_statement(StatusVector, @FHandle, DSQL_drop), False);
2446	<	if (StatusVector^ = 1) and (isc_res > 0) and (isc_res <> isc_bad_stmt_handle) then
2447	<	IBDataBaseError;
2448	<	end;
2449	<	finally
2450	<	FPrepared := False;
2451	<	FHandle := nil;
2452	<	end;
796	>	if FStatement <> nil then
797	>	FStatement.SetRetainInterfaces(false);
798	>	Close;
799	>	FStatement := nil;
800	>	FResults := nil;
801	>	FResultSet := nil;
802	>	FMetaData := nil;
803	>	FSQLParams := nil;
804		end;
805
806		function TIBSQL.GetDatabase: TIBDatabase;
#	Line 2457 | Line 808 | begin
808		result := FBase.Database;
809		end;
810
2460	–	function TIBSQL.GetDBHandle: PISC_DB_HANDLE;
2461	–	begin
2462	–	result := FBase.DBHandle;
2463	–	end;
2464	–
811		function TIBSQL.GetPlan: String;
2466	–	var
2467	–	result_buffer: array[0..16384] of Char;
2468	–	result_length, i: Integer;
2469	–	info_request: Char;
812		begin
813		if (not Prepared) or
814	<	(not (FSQLType in [SQLSelect, SQLSelectForUpdate,
814	>	(not (GetSQLStatementType in [SQLSelect, SQLSelectForUpdate,
815		{TODO: SQLExecProcedure, }
816		SQLUpdate, SQLDelete])) then
817		result := ''
818	<	else begin
819	<	info_request := isc_info_sql_get_plan;
2478	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 2, @info_request,
2479	<	SizeOf(result_buffer), result_buffer), True);
2480	<	if (result_buffer[0] <> isc_info_sql_get_plan) then
2481	<	IBError(ibxeUnknownError, [nil]);
2482	<	result_length := isc_vax_integer(@result_buffer[1], 2);
2483	<	SetString(result, nil, result_length);
2484	<	for i := 1 to result_length do
2485	<	result[i] := result_buffer[i + 2];
2486	<	result := Trim(result);
2487	<	end;
818	>	else
819	>	Result := FStatement.GetPlan;
820		end;
821
822		function TIBSQL.GetRecordCount: Integer;
823		begin
824	<	result := FRecordCount;
824	>	Result := FRecordCount;
825		end;
826
827		function TIBSQL.GetRowsAffected: Integer;
828		var
829	<	info_request: Char;
2498	<	RB: TResultBuffer;
829	>	SelectCount, InsertCount, UpdateCount, DeleteCount: integer;
830		begin
831		if not Prepared then
832	<	result := -1
833	<	else begin
834	<	RB := TResultBuffer.Create;
835	<	try
836	<	info_request := isc_info_sql_records;
2506	<	if isc_dsql_sql_info(StatusVector, @FHandle, 1, @info_request,
2507	<	RB.Size, RB.buffer) > 0 then
2508	<	IBDatabaseError;
2509	<	case SQLType of
2510	<	SQLInsert, SQLUpdate: {Covers Insert or Update as well as individual update}
2511	<	Result := RB.GetValue(isc_info_sql_records, isc_info_req_insert_count)+
2512	<	RB.GetValue(isc_info_sql_records, isc_info_req_update_count);
2513	<	SQLDelete:
2514	<	Result := RB.GetValue(isc_info_sql_records, isc_info_req_delete_count);
2515	<	SQLExecProcedure:
2516	<	Result :=  RB.GetValue(isc_info_sql_records, isc_info_req_insert_count) +
2517	<	RB.GetValue(isc_info_sql_records, isc_info_req_update_count) +
2518	<	RB.GetValue(isc_info_sql_records, isc_info_req_delete_count);
2519	<	else
2520	<	Result := 0;
2521	<	end;
2522	<	finally
2523	<	RB.Free;
2524	<	end;
832	>	Result := -1
833	>	else
834	>	begin
835	>	FStatement.GetRowsAffected(SelectCount, InsertCount, UpdateCount, DeleteCount);
836	>	Result := InsertCount + UpdateCount + DeleteCount;
837		end;
838		end;
839
840	<	function TIBSQL.GetSQLParams: TIBXSQLDA;
840	>	function TIBSQL.GetSQLParams: ISQLParams;
841		begin
842		if not Prepared then
843		Prepare;
844	<	result := FSQLParams;
844	>	result := Statement.SQLParams;
845		end;
846
847		function TIBSQL.GetTransaction: TIBTransaction;
#	Line 2537 | Line 849 | begin
849		result := FBase.Transaction;
850		end;
851
2540	–	function TIBSQL.GetTRHandle: PISC_TR_HANDLE;
2541	–	begin
2542	–	result := FBase.TRHandle;
2543	–	end;
2544	–
2545	–	{
2546	–	Preprocess SQL
2547	–	Using FSQL, process the typed SQL and put the process SQL
2548	–	in FProcessedSQL and parameter names in FSQLParams
2549	–	}
2550	–	procedure TIBSQL.PreprocessSQL;
2551	–	var
2552	–	cCurChar, cNextChar, cQuoteChar: Char;
2553	–	sSQL, sProcessedSQL, sParamName: String;
2554	–	i, iLenSQL, iSQLPos: Integer;
2555	–	iCurState {$ifdef ALLOWDIALECT3PARAMNAMES}, iCurParamState {$endif}: Integer;
2556	–	iParamSuffix: Integer;
2557	–	slNames: TStrings;
2558	–
2559	–	const
2560	–	DefaultState = 0;
2561	–	CommentState = 1;
2562	–	QuoteState = 2;
2563	–	ParamState = 3;
2564	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2565	–	ParamDefaultState = 0;
2566	–	ParamQuoteState = 1;
2567	–	{$endif}
2568	–
2569	–	procedure AddToProcessedSQL(cChar: Char);
2570	–	begin
2571	–	sProcessedSQL[iSQLPos] := cChar;
2572	–	Inc(iSQLPos);
2573	–	end;
2574	–
2575	–	begin
2576	–	sParamName := '';
2577	–	slNames := TStringList.Create;
2578	–	try
2579	–	{ Do some initializations of variables }
2580	–	iParamSuffix := 0;
2581	–	cQuoteChar := '''';
2582	–	sSQL := FSQL.Text;
2583	–	iLenSQL := Length(sSQL);
2584	–	SetString(sProcessedSQL, nil, iLenSQL + 1);
2585	–	i := 1;
2586	–	iSQLPos := 1;
2587	–	iCurState := DefaultState;
2588	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2589	–	iCurParamState := ParamDefaultState;
2590	–	{$endif}
2591	–	{ Now, traverse through the SQL string, character by character,
2592	–	picking out the parameters and formatting correctly for InterBase }
2593	–	while (i <= iLenSQL) do begin
2594	–	{ Get the current token and a look-ahead }
2595	–	cCurChar := sSQL[i];
2596	–	if i = iLenSQL then
2597	–	cNextChar := #0
2598	–	else
2599	–	cNextChar := sSQL[i + 1];
2600	–	{ Now act based on the current state }
2601	–	case iCurState of
2602	–	DefaultState: begin
2603	–	case cCurChar of
2604	–	'''', '"': begin
2605	–	cQuoteChar := cCurChar;
2606	–	iCurState := QuoteState;
2607	–	end;
2608	–	'?', ':': begin
2609	–	iCurState := ParamState;
2610	–	AddToProcessedSQL('?');
2611	–	end;
2612	–	'/': if (cNextChar = '*') then begin
2613	–	AddToProcessedSQL(cCurChar);
2614	–	Inc(i);
2615	–	iCurState := CommentState;
2616	–	end;
2617	–	end;
2618	–	end;
2619	–	CommentState: begin
2620	–	if (cNextChar = #0) then
2621	–	IBError(ibxeSQLParseError, [SEOFInComment])
2622	–	else if (cCurChar = '*') then begin
2623	–	if (cNextChar = '/') then
2624	–	iCurState := DefaultState;
2625	–	end;
2626	–	end;
2627	–	QuoteState: begin
2628	–	if cNextChar = #0 then
2629	–	IBError(ibxeSQLParseError, [SEOFInString])
2630	–	else if (cCurChar = cQuoteChar) then begin
2631	–	if (cNextChar = cQuoteChar) then begin
2632	–	AddToProcessedSQL(cCurChar);
2633	–	Inc(i);
2634	–	end else
2635	–	iCurState := DefaultState;
2636	–	end;
2637	–	end;
2638	–	ParamState:
2639	–	begin
2640	–	{ collect the name of the parameter }
2641	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2642	–	if iCurParamState = ParamDefaultState then
2643	–	begin
2644	–	if cCurChar = '"' then
2645	–	iCurParamState := ParamQuoteState
2646	–	else
2647	–	{$endif}
2648	–	if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
2649	–	sParamName := sParamName + cCurChar
2650	–	else if FGenerateParamNames then
2651	–	begin
2652	–	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
2653	–	Inc(iParamSuffix);
2654	–	iCurState := DefaultState;
2655	–	slNames.AddObject(sParamName,self); //Note local convention
2656	–	//add pointer to self to mark entry
2657	–	sParamName := '';
2658	–	end
2659	–	else
2660	–	IBError(ibxeSQLParseError, [SParamNameExpected]);
2661	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
2662	–	end
2663	–	else begin
2664	–	{ determine if Quoted parameter name is finished }
2665	–	if cCurChar = '"' then
2666	–	begin
2667	–	Inc(i);
2668	–	slNames.Add(sParamName);
2669	–	SParamName := '';
2670	–	iCurParamState := ParamDefaultState;
2671	–	iCurState := DefaultState;
2672	–	end
2673	–	else
2674	–	sParamName := sParamName + cCurChar
2675	–	end;
2676	–	{$endif}
2677	–	{ determine if the unquoted parameter name is finished }
2678	–	if {$ifdef ALLOWDIALECT3PARAMNAMES}(iCurParamState <> ParamQuoteState) and {$endif}
2679	–	(iCurState <> DefaultState) then
2680	–	begin
2681	–	if not (cNextChar in ['A'..'Z', 'a'..'z',
2682	–	'0'..'9', '_', '$']) then begin
2683	–	Inc(i);
2684	–	iCurState := DefaultState;
2685	–	slNames.Add(sParamName);
2686	–	sParamName := '';
2687	–	end;
2688	–	end;
2689	–	end;
2690	–	end;
2691	–	if iCurState <> ParamState then
2692	–	AddToProcessedSQL(sSQL[i]);
2693	–	Inc(i);
2694	–	end;
2695	–	AddToProcessedSQL(#0);
2696	–	FSQLParams.Count := slNames.Count;
2697	–	for i := 0 to slNames.Count - 1 do
2698	–	FSQLParams.SetParamName(slNames[i], i,FUniqueParamNames or (slNames.Objects[i] <> nil));
2699	–	FProcessedSQL.Text := sProcessedSQL;
2700	–	finally
2701	–	slNames.Free;
2702	–	end;
2703	–	end;
2704	–
852		procedure TIBSQL.SetDatabase(Value: TIBDatabase);
853		begin
854		FBase.Database := Value;
855		end;
856
857		procedure TIBSQL.Prepare;
2711	–	var
2712	–	stmt_len: Integer;
2713	–	res_buffer: array[0..7] of Char;
2714	–	type_item: Char;
858		begin
859		CheckClosed;
860		FBase.CheckDatabase;
861		FBase.CheckTransaction;
862	<	if FPrepared then
862	>	Close;
863	>	if Prepared then
864		exit;
865		if (FSQL.Text = '') then
866		IBError(ibxeEmptyQuery, [nil]);
867	+
868	+	if FStatement <> nil then
869	+	FStatement.Prepare(Transaction.TransactionIntf)
870	+	else
871		if not ParamCheck then
872	<	FProcessedSQL.Text := FSQL.Text
872	>	FStatement := Database.Attachment.Prepare(Transaction.TransactionIntf,SQL.Text)
873		else
874	<	PreprocessSQL;
875	<	if (FProcessedSQL.Text = '') then
876	<	IBError(ibxeEmptyQuery, [nil]);
877	<	try
878	<	Call(isc_dsql_alloc_statement2(StatusVector, DBHandle,
879	<	@FHandle), True);
880	<	Call(isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
881	<	PChar(FProcessedSQL.Text), Database.SQLDialect, nil), True);
2734	<	{ After preparing the statement, query the stmt type and possibly
2735	<	create a FSQLRecord "holder" }
2736	<	{ Get the type of the statement }
2737	<	type_item := isc_info_sql_stmt_type;
2738	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 1, @type_item,
2739	<	SizeOf(res_buffer), res_buffer), True);
2740	<	if (res_buffer[0] <> isc_info_sql_stmt_type) then
2741	<	IBError(ibxeUnknownError, [nil]);
2742	<	stmt_len := isc_vax_integer(@res_buffer[1], 2);
2743	<	FSQLType := TIBSQLTypes(isc_vax_integer(@res_buffer[3], stmt_len));
2744	<	{ Done getting the type }
2745	<	case FSQLType of
2746	<	SQLGetSegment,
2747	<	SQLPutSegment,
2748	<	SQLStartTransaction: begin
2749	<	FreeHandle;
2750	<	IBError(ibxeNotPermitted, [nil]);
2751	<	end;
2752	<	SQLCommit,
2753	<	SQLRollback,
2754	<	SQLDDL, SQLSetGenerator,
2755	<	SQLInsert, SQLUpdate, SQLDelete, SQLSelect, SQLSelectForUpdate,
2756	<	SQLExecProcedure: begin
2757	<	{ We already know how many inputs there are, so... }
2758	<	if (FSQLParams.FXSQLDA <> nil) and
2759	<	(Call(isc_dsql_describe_bind(StatusVector, @FHandle, Database.SQLDialect,
2760	<	FSQLParams.FXSQLDA), False) > 0) then
2761	<	IBDataBaseError;
2762	<	FSQLParams.Initialize;
2763	<	if FSQLType in [SQLSelect, SQLSelectForUpdate,
2764	<	SQLExecProcedure] then begin
2765	<	{ Allocate an initial output descriptor (with one column) }
2766	<	FSQLRecord.Count := 1;
2767	<	{ Using isc_dsql_describe, get the right size for the columns... }
2768	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2769	<	if FSQLRecord.FXSQLDA^.sqld > FSQLRecord.FXSQLDA^.sqln then begin
2770	<	FSQLRecord.Count := FSQLRecord.FXSQLDA^.sqld;
2771	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2772	<	end else if FSQLRecord.FXSQLDA^.sqld = 0 then
2773	<	FSQLRecord.Count := 0;
2774	<	FSQLRecord.Initialize;
2775	<	end;
2776	<	end;
2777	<	end;
2778	<	FPrepared := True;
2779	<	if not (csDesigning in ComponentState) then
874	>	FStatement := Database.Attachment.PrepareWithNamedParameters(
875	>	Transaction.TransactionIntf,
876	>	SQL.Text,
877	>	GenerateParamNames);
878	>	FMetaData := FStatement.GetMetaData;
879	>	FSQLParams := FStatement.GetSQLParams;
880	>	FStatement.SetRetainInterfaces(true);
881	>	if not (csDesigning in ComponentState) then
882		MonitorHook.SQLPrepare(Self);
2781	–	except
2782	–	on E: Exception do begin
2783	–	if (FHandle <> nil) then
2784	–	FreeHandle;
2785	–	if E is EIBInterBaseError then
2786	–	raise EIBInterBaseError.Create(EIBInterBaseError(E).SQLCode,
2787	–	EIBInterBaseError(E).IBErrorCode,
2788	–	EIBInterBaseError(E).Message +
2789	–	sSQLErrorSeparator + FProcessedSQL.Text)
2790	–	else
2791	–	raise;
2792	–	end;
2793	–	end;
883		end;
884
885		function TIBSQL.GetUniqueRelationName: String;
886		begin
887	<	if FPrepared and (FSQLType = SQLSelect) then
888	<	result := FSQLRecord.UniqueRelationName
887	>	if Prepared and (GetSQLStatementType = SQLSelect) then
888	>	result := FMetaData.GetUniqueRelationName
889		else
890		result := '';
891		end;
#	Line 2823 | Line 912 | procedure TIBSQL.SQLChanging(Sender: TOb
912		begin
913		if Assigned(OnSQLChanging) then
914		OnSQLChanging(Self);
915	<	if FHandle <> nil then FreeHandle;
915	>
916	>	FreeHandle;
917		end;
918
919		procedure TIBSQL.SQLChanged(Sender: TObject);
#	Line 2835 | Line 925 | end;
925		procedure TIBSQL.BeforeTransactionEnd(Sender: TObject;
926		Action: TTransactionAction);
927		begin
928	<	if (FOpen) then
929	<	Close;
928	>	if not (Owner is TIBCustomDataSet) then
929	>	FreeHandle;
930		end;
931
932		end.

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