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

Comparing ibx/trunk/runtime/IBSQL.pas (file contents):
Revision 5 by tony, Fri Feb 18 16:26:16 2011 UTC vs.
Revision 49 by tony, Thu Feb 2 16:20:12 2017 UTC

#	Line 24 | Line 24
24		{       Corporation. All Rights Reserved.                                }
25		{    Contributor(s): Jeff Overcash                                       }
26		{                                                                        }
27	+	{    IBX For Lazarus (Firebird Express)                                  }
28	+	{    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
29	+	{    Portions created by MWA Software are copyright McCallum Whyman      }
30	+	{    Associates Ltd 2011 - 2014                                                }
31	+	{                                                                        }
32		{************************************************************************}
33
34		unit IBSQL;
35
36		{$Mode Delphi}
37
38	+	{$codepage UTF8}
39	+
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	+	{ $DEFINE IBXQUERYSTATS}
48	+	{ $DEFINE IBXQUERYTIME}
49	+
50		interface
51
52		uses
53	<	{$IFDEF LINUX }
37	<	baseunix,unix,
38	<	{$ELSE}
39	<	{$DEFINE HAS_SQLMONITOR}
53	>	{$IFDEF WINDOWS }
54		Windows,
55	+	{$ELSE}
56	+	baseunix, unix,
57		{$ENDIF}
58	<	SysUtils, Classes, Forms, Controls, IBHeader,
43	<	IBErrorCodes, IBExternals, DB, IB, IBDatabase, IBUtils, IBXConst;
58	>	SysUtils, Classes, IBExternals, IB, IBDatabase, IBUtils;
59
60		type
46	–	TIBSQL = class;
47	–	TIBXSQLDA = class;
48	–
49	–	{ TIBXSQLVAR }
50	–	TIBXSQLVAR = class(TObject)
51	–	private
52	–	FParent: TIBXSQLDA;
53	–	FSQL: TIBSQL;
54	–	FIndex: Integer;
55	–	FModified: Boolean;
56	–	FName: String;
57	–	FXSQLVAR: PXSQLVAR;       { Point to the PXSQLVAR in the owner object }
58	–
59	–	function AdjustScale(Value: Int64; Scale: Integer): Double;
60	–	function AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
61	–	function AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
62	–	function GetAsCurrency: Currency;
63	–	function GetAsInt64: Int64;
64	–	function GetAsDateTime: TDateTime;
65	–	function GetAsDouble: Double;
66	–	function GetAsFloat: Float;
67	–	function GetAsLong: Long;
68	–	function GetAsPointer: Pointer;
69	–	function GetAsQuad: TISC_QUAD;
70	–	function GetAsShort: Short;
71	–	function GetAsString: String;
72	–	function GetAsVariant: Variant;
73	–	function GetAsXSQLVAR: PXSQLVAR;
74	–	function GetIsNull: Boolean;
75	–	function GetIsNullable: Boolean;
76	–	function GetSize: Integer;
77	–	function GetSQLType: Integer;
78	–	procedure SetAsCurrency(Value: Currency);
79	–	procedure SetAsInt64(Value: Int64);
80	–	procedure SetAsDate(Value: TDateTime);
81	–	procedure SetAsTime(Value: TDateTime);
82	–	procedure SetAsDateTime(Value: TDateTime);
83	–	procedure SetAsDouble(Value: Double);
84	–	procedure SetAsFloat(Value: Float);
85	–	procedure SetAsLong(Value: Long);
86	–	procedure SetAsPointer(Value: Pointer);
87	–	procedure SetAsQuad(Value: TISC_QUAD);
88	–	procedure SetAsShort(Value: Short);
89	–	procedure SetAsString(Value: String);
90	–	procedure SetAsVariant(Value: Variant);
91	–	procedure SetAsXSQLVAR(Value: PXSQLVAR);
92	–	procedure SetIsNull(Value: Boolean);
93	–	procedure SetIsNullable(Value: Boolean);
94	–	public
95	–	constructor Create(Parent: TIBXSQLDA; Query: TIBSQL);
96	–	procedure Assign(Source: TIBXSQLVAR);
97	–	procedure LoadFromFile(const FileName: String);
98	–	procedure LoadFromStream(Stream: TStream);
99	–	procedure SaveToFile(const FileName: String);
100	–	procedure SaveToStream(Stream: TStream);
101	–	property AsDate: TDateTime read GetAsDateTime write SetAsDate;
102	–	property AsTime: TDateTime read GetAsDateTime write SetAsTime;
103	–	property AsDateTime: TDateTime read GetAsDateTime write SetAsDateTime;
104	–	property AsDouble: Double read GetAsDouble write SetAsDouble;
105	–	property AsFloat: Float read GetAsFloat write SetAsFloat;
106	–	property AsCurrency: Currency read GetAsCurrency write SetAsCurrency;
107	–	property AsInt64: Int64 read GetAsInt64 write SetAsInt64;
108	–	property AsInteger: Integer read GetAsLong write SetAsLong;
109	–	property AsLong: Long read GetAsLong write SetAsLong;
110	–	property AsPointer: Pointer read GetAsPointer write SetAsPointer;
111	–	property AsQuad: TISC_QUAD read GetAsQuad write SetAsQuad;
112	–	property AsShort: Short read GetAsShort write SetAsShort;
113	–	property AsString: String read GetAsString write SetAsString;
114	–	property AsVariant: Variant read GetAsVariant write SetAsVariant;
115	–	property AsXSQLVAR: PXSQLVAR read GetAsXSQLVAR write SetAsXSQLVAR;
116	–	property Data: PXSQLVAR read FXSQLVAR write FXSQLVAR;
117	–	property IsNull: Boolean read GetIsNull write SetIsNull;
118	–	property IsNullable: Boolean read GetIsNullable write SetIsNullable;
119	–	property Index: Integer read FIndex;
120	–	property Modified: Boolean read FModified write FModified;
121	–	property Name: String read FName;
122	–	property Size: Integer read GetSize;
123	–	property SQLType: Integer read GetSQLType;
124	–	property Value: Variant read GetAsVariant write SetAsVariant;
125	–	end;
126	–
127	–	TIBXSQLVARArray = Array of TIBXSQLVAR;
128	–
129	–	{ TIBXSQLVAR }
130	–	TIBXSQLDA = class(TObject)
131	–	protected
132	–	FSQL: TIBSQL;
133	–	FCount: Integer;
134	–	FNames: TStrings;
135	–	FSize: Integer;
136	–	FXSQLDA: PXSQLDA;
137	–	FXSQLVARs: TIBXSQLVARArray; { array of IBXQLVARs }
138	–	FUniqueRelationName: String;
139	–	function GetModified: Boolean;
140	–	function GetNames: String;
141	–	function GetRecordSize: Integer;
142	–	function GetXSQLDA: PXSQLDA;
143	–	function GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
144	–	function GetXSQLVARByName(Idx: String): TIBXSQLVAR;
145	–	procedure Initialize;
146	–	procedure SetCount(Value: Integer);
147	–	public
148	–	constructor Create(Query: TIBSQL);
149	–	destructor Destroy; override;
150	–	procedure AddName(FieldName: String; Idx: Integer);
151	–	function ByName(Idx: String): TIBXSQLVAR;
152	–	property AsXSQLDA: PXSQLDA read GetXSQLDA;
153	–	property Count: Integer read FCount write SetCount;
154	–	property Modified: Boolean read GetModified;
155	–	property Names: String read GetNames;
156	–	property RecordSize: Integer read GetRecordSize;
157	–	property Vars[Idx: Integer]: TIBXSQLVAR read GetXSQLVAR; default;
158	–	property UniqueRelationName: String read FUniqueRelationName;
159	–	end;
160	–
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 186 | Line 86 | type
86		{ TIBOutputDelimitedFile }
87		TIBOutputDelimitedFile = class(TIBBatchOutput)
88		protected
89	<	{$IFDEF LINUX}
89	>	{$IFDEF UNIX}
90		FHandle: cint;
91		{$ELSE}
92		FHandle: THandle;
#	Line 229 | Line 129 | type
129		{ TIBOutputRawFile }
130		TIBOutputRawFile = class(TIBBatchOutput)
131		protected
132	<	{$IFDEF LINUX}
132	>	{$IFDEF UNIX}
133		FHandle: cint;
134		{$ELSE}
135		FHandle: THandle;
#	Line 243 | Line 143 | type
143		{ TIBInputRawFile }
144		TIBInputRawFile = class(TIBBatchInput)
145		protected
146	<	{$IFDEF LINUX}
146	>	{$IFDEF UNIX}
147		FHandle: cint;
148		{$ELSE}
149		FHandle: THandle;
#	Line 255 | Line 155 | type
155		end;
156
157		{ TIBSQL }
258	–	TIBSQLTypes = (SQLUnknown, SQLSelect, SQLInsert,
259	–	SQLUpdate, SQLDelete, SQLDDL,
260	–	SQLGetSegment, SQLPutSegment,
261	–	SQLExecProcedure, SQLStartTransaction,
262	–	SQLCommit, SQLRollback,
263	–	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? }
271	<	FEOF,                          { At EOF? }
272	<	FGoToFirstRecordOnExecute,     { Automatically position record on first record after executing }
273	<	FOpen,                         { Is a cursor open? }
274	<	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? }
276	–	FCursor: String;               { Cursor name...}
277	–	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 }
283	<	FSQLRecord: TIBXSQLDA;         { The current record }
284	<	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;
288	–	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;
297	–	function GetTRHandle: PISC_TR_HANDLE;
298	–	procedure PreprocessSQL;
193		procedure SetDatabase(Value: TIBDatabase);
194		procedure SetSQL(Value: TStrings);
195		procedure SetTransaction(Value: TIBTransaction);
196		procedure SQLChanging(Sender: TObject);
197	<	procedure BeforeTransactionEnd(Sender: TObject);
197	>	procedure SQLChanged(Sender: TObject);
198	>	procedure BeforeTransactionEnd(Sender: TObject; Action: TTransactionAction);
199		public
200		constructor Create(AOwner: TComponent); override;
201		destructor Destroy; override;
202		procedure BatchInput(InputObject: TIBBatchInput);
203		procedure BatchOutput(OutputObject: TIBBatchOutput);
309	–	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;
314	–	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;
323	–	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 Open: Boolean read FOpen;
222	<	property Params: TIBXSQLDA read GetSQLParams;
221	>	property FieldCount: integer read GetFieldCount;
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;
334	<	property TRHandle: PISC_TR_HANDLE read GetTRHandle;
335	<	property Handle: TISC_STMT_HANDLE read FHandle;
336	<	property GenerateParamNames: Boolean read FGenerateParamNames write FGenerateParamNames;
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;
235	+	property UniqueParamNames: Boolean read FUniqueParamNames write SetUniqueParamNames;
236		property GoToFirstRecordOnExecute: Boolean read FGoToFirstRecordOnExecute
237		write FGoToFirstRecordOnExecute
238		default True;
#	Line 344 | Line 240 | type
240		property SQL: TStrings read FSQL write SetSQL;
241		property Transaction: TIBTransaction read GetTransaction write SetTransaction;
242		property OnSQLChanging: TNotifyEvent read FOnSQLChanging write FOnSQLChanging;
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 {$IFDEF HAS_SQLMONITOR}, IBSQLMonitor {$ENDIF};
353	<
354	<	{ TIBXSQLVAR }
355	<	constructor TIBXSQLVAR.Create(Parent: TIBXSQLDA; Query: TIBSQL);
356	<	begin
357	<	inherited Create;
358	<	FParent := Parent;
359	<	FSQL := Query;
360	<	end;
361	<
362	<	procedure TIBXSQLVAR.Assign(Source: TIBXSQLVAR);
363	<	var
364	<	szBuff: PChar;
365	<	s_bhandle, d_bhandle: TISC_BLOB_HANDLE;
366	<	bSourceBlob, bDestBlob: Boolean;
367	<	iSegs, iMaxSeg, iSize: Long;
368	<	iBlobType: Short;
369	<	begin
370	<	szBuff := nil;
371	<	bSourceBlob := True;
372	<	bDestBlob := True;
373	<	s_bhandle := nil;
374	<	d_bhandle := nil;
375	<	try
376	<	if (Source.IsNull) then
377	<	begin
378	<	IsNull := True;
379	<	exit;
380	<	end
381	<	else
382	<	if (FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) or
383	<	(Source.FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) then
384	<	exit; { arrays not supported }
385	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
386	<	(Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
387	<	begin
388	<	AsXSQLVAR := Source.AsXSQLVAR;
389	<	exit;
390	<	end
391	<	else
392	<	if (Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
393	<	begin
394	<	szBuff := nil;
395	<	IBAlloc(szBuff, 0, Source.FXSQLVAR^.sqllen);
396	<	Move(Source.FXSQLVAR^.sqldata[0], szBuff[0], Source.FXSQLVAR^.sqllen);
397	<	bSourceBlob := False;
398	<	iSize := Source.FXSQLVAR^.sqllen;
399	<	end
400	<	else
401	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
402	<	bDestBlob := False;
403	<
404	<	if bSourceBlob then
405	<	begin
406	<	{ read the blob }
407	<	Source.FSQL.Call(isc_open_blob2(StatusVector, Source.FSQL.DBHandle,
408	<	Source.FSQL.TRHandle, @s_bhandle, PISC_QUAD(Source.FXSQLVAR.sqldata),
409	<	0, nil), True);
410	<	try
411	<	IBBlob.GetBlobInfo(@s_bhandle, iSegs, iMaxSeg, iSize,
412	<	iBlobType);
413	<	szBuff := nil;
414	<	IBAlloc(szBuff, 0, iSize);
415	<	IBBlob.ReadBlob(@s_bhandle, szBuff, iSize);
416	<	finally
417	<	Source.FSQL.Call(isc_close_blob(StatusVector, @s_bhandle), True);
418	<	end;
419	<	end;
420	<
421	<	if bDestBlob then
422	<	begin
423	<	{ write the blob }
424	<	FSQL.Call(isc_create_blob2(StatusVector, FSQL.DBHandle,
425	<	FSQL.TRHandle, @d_bhandle, PISC_QUAD(FXSQLVAR.sqldata),
426	<	0, nil), True);
427	<	try
428	<	IBBlob.WriteBlob(@d_bhandle, szBuff, iSize);
429	<	finally
430	<	FSQL.Call(isc_close_blob(StatusVector, @d_bhandle), True);
431	<	end;
432	<	end
433	<	else
434	<	begin
435	<	{ just copy the buffer }
436	<	FXSQLVAR.sqltype := SQL_TEXT;
437	<	FXSQLVAR.sqllen := iSize;
438	<	IBAlloc(FXSQLVAR.sqldata, iSize, iSize);
439	<	Move(szBuff[0], FXSQLVAR^.sqldata[0], iSize);
440	<	end;
441	<	finally
442	<	FreeMem(szBuff);
443	<	end;
444	<	end;
445	<
446	<	function TIBXSQLVAR.AdjustScale(Value: Int64; Scale: Integer): Double;
447	<	var
448	<	Scaling : Int64;
449	<	i: Integer;
450	<	Val: Double;
451	<	begin
452	<	Scaling := 1; Val := Value;
453	<	if Scale > 0 then
454	<	begin
455	<	for i := 1 to Scale do
456	<	Scaling := Scaling * 10;
457	<	result := Val * Scaling;
458	<	end
459	<	else
460	<	if Scale < 0 then
461	<	begin
462	<	for i := -1 downto Scale do
463	<	Scaling := Scaling * 10;
464	<	result := Val / Scaling;
465	<	end
466	<	else
467	<	result := Val;
468	<	end;
469	<
470	<	function TIBXSQLVAR.AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
471	<	var
472	<	Scaling : Int64;
473	<	i: Integer;
474	<	Val: Int64;
475	<	begin
476	<	Scaling := 1; Val := Value;
477	<	if Scale > 0 then begin
478	<	for i := 1 to Scale do Scaling := Scaling * 10;
479	<	result := Val * Scaling;
480	<	end else if Scale < 0 then begin
481	<	for i := -1 downto Scale do Scaling := Scaling * 10;
482	<	result := Val div Scaling;
483	<	end else
484	<	result := Val;
485	<	end;
486	<
487	<	function TIBXSQLVAR.AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
488	<	var
489	<	Scaling : Int64;
490	<	i : Integer;
491	<	FractionText, PadText, CurrText: string;
492	<	begin
493	<	Result := 0;
494	<	Scaling := 1;
495	<	if Scale > 0 then
496	<	begin
497	<	for i := 1 to Scale do
498	<	Scaling := Scaling * 10;
499	<	result := Value * Scaling;
500	<	end
501	<	else
502	<	if Scale < 0 then
503	<	begin
504	<	for i := -1 downto Scale do
505	<	Scaling := Scaling * 10;
506	<	FractionText := IntToStr(abs(Value mod Scaling));
507	<	for i := Length(FractionText) to -Scale -1 do
508	<	PadText := '0' + PadText;
509	<	if Value < 0 then
510	<	CurrText := '-' + IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText
511	<	else
512	<	CurrText := IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText;
513	<	try
514	<	result := StrToCurr(CurrText);
515	<	except
516	<	on E: Exception do
517	<	IBError(ibxeInvalidDataConversion, [nil]);
518	<	end;
519	<	end
520	<	else
521	<	result := Value;
522	<	end;
523	<
524	<	function TIBXSQLVAR.GetAsCurrency: Currency;
525	<	begin
526	<	result := 0;
527	<	if FSQL.Database.SQLDialect < 3 then
528	<	result := GetAsDouble
529	<	else begin
530	<	if not IsNull then
531	<	case FXSQLVAR^.sqltype and (not 1) of
532	<	SQL_TEXT, SQL_VARYING: begin
533	<	try
534	<	result := StrtoCurr(AsString);
535	<	except
536	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
537	<	end;
538	<	end;
539	<	SQL_SHORT:
540	<	result := AdjustScaleToCurrency(Int64(PShort(FXSQLVAR^.sqldata)^),
541	<	FXSQLVAR^.sqlscale);
542	<	SQL_LONG:
543	<	result := AdjustScaleToCurrency(Int64(PLong(FXSQLVAR^.sqldata)^),
544	<	FXSQLVAR^.sqlscale);
545	<	SQL_INT64:
546	<	result := AdjustScaleToCurrency(PInt64(FXSQLVAR^.sqldata)^,
547	<	FXSQLVAR^.sqlscale);
548	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
549	<	result := Trunc(AsDouble);
550	<	else
551	<	IBError(ibxeInvalidDataConversion, [nil]);
552	<	end;
553	<	end;
554	<	end;
555	<
556	<	function TIBXSQLVAR.GetAsInt64: Int64;
557	<	begin
558	<	result := 0;
559	<	if not IsNull then
560	<	case FXSQLVAR^.sqltype and (not 1) of
561	<	SQL_TEXT, SQL_VARYING: begin
562	<	try
563	<	result := StrToInt64(AsString);
564	<	except
565	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
566	<	end;
567	<	end;
568	<	SQL_SHORT:
569	<	result := AdjustScaleToInt64(Int64(PShort(FXSQLVAR^.sqldata)^),
570	<	FXSQLVAR^.sqlscale);
571	<	SQL_LONG:
572	<	result := AdjustScaleToInt64(Int64(PLong(FXSQLVAR^.sqldata)^),
573	<	FXSQLVAR^.sqlscale);
574	<	SQL_INT64:
575	<	result := AdjustScaleToInt64(PInt64(FXSQLVAR^.sqldata)^,
576	<	FXSQLVAR^.sqlscale);
577	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
578	<	result := Trunc(AsDouble);
579	<	else
580	<	IBError(ibxeInvalidDataConversion, [nil]);
581	<	end;
582	<	end;
583	<
584	<	function TIBXSQLVAR.GetAsDateTime: TDateTime;
585	<	var
586	<	tm_date: TCTimeStructure;
587	<	begin
588	<	result := 0;
589	<	if not IsNull then
590	<	case FXSQLVAR^.sqltype and (not 1) of
591	<	SQL_TEXT, SQL_VARYING: begin
592	<	try
593	<	result := StrToDate(AsString);
594	<	except
595	<	on E: EConvertError do IBError(ibxeInvalidDataConversion, [nil]);
596	<	end;
597	<	end;
598	<	SQL_TYPE_DATE: begin
599	<	isc_decode_sql_date(PISC_DATE(FXSQLVAR^.sqldata), @tm_date);
600	<	try
601	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
602	<	Word(tm_date.tm_mday));
603	<	except
604	<	on E: EConvertError do begin
605	<	IBError(ibxeInvalidDataConversion, [nil]);
606	<	end;
607	<	end;
608	<	end;
609	<	SQL_TYPE_TIME: begin
610	<	isc_decode_sql_time(PISC_TIME(FXSQLVAR^.sqldata), @tm_date);
611	<	try
612	<	result := EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
613	<	Word(tm_date.tm_sec), 0)
614	<	except
615	<	on E: EConvertError do begin
616	<	IBError(ibxeInvalidDataConversion, [nil]);
617	<	end;
618	<	end;
619	<	end;
620	<	SQL_TIMESTAMP: begin
621	<	isc_decode_date(PISC_QUAD(FXSQLVAR^.sqldata), @tm_date);
622	<	try
623	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
624	<	Word(tm_date.tm_mday));
625	<	if result >= 0 then
626	<	result := result + EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
627	<	Word(tm_date.tm_sec), 0)
628	<	else
629	<	result := result - EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
630	<	Word(tm_date.tm_sec), 0)
631	<	except
632	<	on E: EConvertError do begin
633	<	IBError(ibxeInvalidDataConversion, [nil]);
634	<	end;
635	<	end;
636	<	end;
637	<	else
638	<	IBError(ibxeInvalidDataConversion, [nil]);
639	<	end;
640	<	end;
641	<
642	<	function TIBXSQLVAR.GetAsDouble: Double;
643	<	begin
644	<	result := 0;
645	<	if not IsNull then begin
646	<	case FXSQLVAR^.sqltype and (not 1) of
647	<	SQL_TEXT, SQL_VARYING: begin
648	<	try
649	<	result := StrToFloat(AsString);
650	<	except
651	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
652	<	end;
653	<	end;
654	<	SQL_SHORT:
655	<	result := AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
656	<	FXSQLVAR^.sqlscale);
657	<	SQL_LONG:
658	<	result := AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
659	<	FXSQLVAR^.sqlscale);
660	<	SQL_INT64:
661	<	result := AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale);
662	<	SQL_FLOAT:
663	<	result := PFloat(FXSQLVAR^.sqldata)^;
664	<	SQL_DOUBLE, SQL_D_FLOAT:
665	<	result := PDouble(FXSQLVAR^.sqldata)^;
666	<	else
667	<	IBError(ibxeInvalidDataConversion, [nil]);
668	<	end;
669	<	if  FXSQLVAR^.sqlscale <> 0 then
670	<	result :=
671	<	StrToFloat(FloatToStrF(result, fffixed, 15,
672	<	Abs(FXSQLVAR^.sqlscale) ));
673	<	end;
674	<	end;
675	<
676	<	function TIBXSQLVAR.GetAsFloat: Float;
677	<	begin
678	<	result := 0;
679	<	try
680	<	result := AsDouble;
681	<	except
682	<	on E: EOverflow do
683	<	IBError(ibxeInvalidDataConversion, [nil]);
684	<	end;
685	<	end;
686	<
687	<	function TIBXSQLVAR.GetAsLong: Long;
688	<	begin
689	<	result := 0;
690	<	if not IsNull then
691	<	case FXSQLVAR^.sqltype and (not 1) of
692	<	SQL_TEXT, SQL_VARYING: begin
693	<	try
694	<	result := StrToInt(AsString);
695	<	except
696	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
697	<	end;
698	<	end;
699	<	SQL_SHORT:
700	<	result := Trunc(AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
701	<	FXSQLVAR^.sqlscale));
702	<	SQL_LONG:
703	<	result := Trunc(AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
704	<	FXSQLVAR^.sqlscale));
705	<	SQL_INT64:
706	<	result := Trunc(AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale));
707	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
708	<	result := Trunc(AsDouble);
709	<	else
710	<	IBError(ibxeInvalidDataConversion, [nil]);
711	<	end;
712	<	end;
713	<
714	<	function TIBXSQLVAR.GetAsPointer: Pointer;
715	<	begin
716	<	if not IsNull then
717	<	result := FXSQLVAR^.sqldata
718	<	else
719	<	result := nil;
720	<	end;
721	<
722	<	function TIBXSQLVAR.GetAsQuad: TISC_QUAD;
723	<	begin
724	<	result.gds_quad_high := 0;
725	<	result.gds_quad_low := 0;
726	<	if not IsNull then
727	<	case FXSQLVAR^.sqltype and (not 1) of
728	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD:
729	<	result := PISC_QUAD(FXSQLVAR^.sqldata)^;
730	<	else
731	<	IBError(ibxeInvalidDataConversion, [nil]);
732	<	end;
733	<	end;
734	<
735	<	function TIBXSQLVAR.GetAsShort: Short;
736	<	begin
737	<	result := 0;
738	<	try
739	<	result := AsLong;
740	<	except
741	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
742	<	end;
743	<	end;
744	<
745	<
746	<	function TIBXSQLVAR.GetAsString: String;
747	<	var
748	<	sz: PChar;
749	<	str_len: Integer;
750	<	ss: TStringStream;
751	<	begin
752	<	result := '';
753	<	{ Check null, if so return a default string }
754	<	if not IsNull then
755	<	case FXSQLVar^.sqltype and (not 1) of
756	<	SQL_ARRAY:
757	<	result := '(Array)'; {do not localize}
758	<	SQL_BLOB: begin
759	<	ss := TStringStream.Create('');
760	<	SaveToStream(ss);
761	<	result := ss.DataString;
762	<	ss.Free;
763	<	end;
764	<	SQL_TEXT, SQL_VARYING: begin
765	<	sz := FXSQLVAR^.sqldata;
766	<	if (FXSQLVar^.sqltype and (not 1) = SQL_TEXT) then
767	<	str_len := FXSQLVar^.sqllen
768	<	else begin
769	<	str_len := isc_vax_integer(FXSQLVar^.sqldata, 2);
770	<	Inc(sz, 2);
771	<	end;
772	<	SetString(result, sz, str_len);
773	<	if ((FXSQLVar^.sqltype and (not 1)) = SQL_TEXT) then
774	<	result := TrimRight(result);
775	<	end;
776	<	SQL_TYPE_DATE:
777	<	case FSQL.Database.SQLDialect of
778	<	1 : result := DateTimeToStr(AsDateTime);
779	<	3 : result := DateToStr(AsDateTime);
780	<	end;
781	<	SQL_TYPE_TIME :
782	<	result := TimeToStr(AsDateTime);
783	<	SQL_TIMESTAMP:
784	<	result := DateTimeToStr(AsDateTime);
785	<	SQL_SHORT, SQL_LONG:
786	<	if FXSQLVAR^.sqlscale = 0 then
787	<	result := IntToStr(AsLong)
788	<	else if FXSQLVAR^.sqlscale >= (-4) then
789	<	result := CurrToStr(AsCurrency)
790	<	else
791	<	result := FloatToStr(AsDouble);
792	<	SQL_INT64:
793	<	if FXSQLVAR^.sqlscale = 0 then
794	<	result := IntToStr(AsInt64)
795	<	else if FXSQLVAR^.sqlscale >= (-4) then
796	<	result := CurrToStr(AsCurrency)
797	<	else
798	<	result := FloatToStr(AsDouble);
799	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
800	<	result := FloatToStr(AsDouble);
801	<	else
802	<	IBError(ibxeInvalidDataConversion, [nil]);
803	<	end;
804	<	end;
805	<
806	<	function TIBXSQLVAR.GetAsVariant: Variant;
807	<	begin
808	<	if IsNull then
809	<	result := NULL
810	<	{ Check null, if so return a default string }
811	<	else case FXSQLVar^.sqltype and (not 1) of
812	<	SQL_ARRAY:
813	<	result := '(Array)'; {do not localize}
814	<	SQL_BLOB:
815	<	result := '(Blob)'; {do not localize}
816	<	SQL_TEXT, SQL_VARYING:
817	<	result := AsString;
818	<	SQL_TIMESTAMP, SQL_TYPE_DATE, SQL_TYPE_TIME:
819	<	result := AsDateTime;
820	<	SQL_SHORT, SQL_LONG:
821	<	if FXSQLVAR^.sqlscale = 0 then
822	<	result := AsLong
823	<	else if FXSQLVAR^.sqlscale >= (-4) then
824	<	result := AsCurrency
825	<	else
826	<	result := AsDouble;
827	<	SQL_INT64:
828	<	if FXSQLVAR^.sqlscale = 0 then
829	<	IBError(ibxeInvalidDataConversion, [nil])
830	<	else if FXSQLVAR^.sqlscale >= (-4) then
831	<	result := AsCurrency
832	<	else
833	<	result := AsDouble;
834	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
835	<	result := AsDouble;
836	<	else
837	<	IBError(ibxeInvalidDataConversion, [nil]);
838	<	end;
839	<	end;
840	<
841	<	function TIBXSQLVAR.GetAsXSQLVAR: PXSQLVAR;
842	<	begin
843	<	result := FXSQLVAR;
844	<	end;
845	<
846	<	function TIBXSQLVAR.GetIsNull: Boolean;
847	<	begin
848	<	result := IsNullable and (FXSQLVAR^.sqlind^ = -1);
849	<	end;
850	<
851	<	function TIBXSQLVAR.GetIsNullable: Boolean;
852	<	begin
853	<	result := (FXSQLVAR^.sqltype and 1 = 1);
854	<	end;
855	<
856	<	procedure TIBXSQLVAR.LoadFromFile(const FileName: String);
857	<	var
858	<	fs: TFileStream;
859	<	begin
860	<	fs := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
861	<	try
862	<	LoadFromStream(fs);
863	<	finally
864	<	fs.Free;
865	<	end;
866	<	end;
867	<
868	<	procedure TIBXSQLVAR.LoadFromStream(Stream: TStream);
869	<	var
870	<	bs: TIBBlobStream;
871	<	begin
872	<	bs := TIBBlobStream.Create;
873	<	try
874	<	bs.Mode := bmWrite;
875	<	bs.Database := FSQL.Database;
876	<	bs.Transaction := FSQL.Transaction;
877	<	Stream.Seek(0, soFromBeginning);
878	<	bs.LoadFromStream(Stream);
879	<	bs.Finalize;
880	<	AsQuad := bs.BlobID;
881	<	finally
882	<	bs.Free;
883	<	end;
884	<	end;
885	<
886	<	procedure TIBXSQLVAR.SaveToFile(const FileName: String);
887	<	var
888	<	fs: TFileStream;
889	<	begin
890	<	fs := TFileStream.Create(FileName, fmCreate or fmShareExclusive);
891	<	try
892	<	SaveToStream(fs);
893	<	finally
894	<	fs.Free;
895	<	end;
896	<	end;
897	<
898	<	procedure TIBXSQLVAR.SaveToStream(Stream: TStream);
899	<	var
900	<	bs: TIBBlobStream;
901	<	begin
902	<	bs := TIBBlobStream.Create;
903	<	try
904	<	bs.Mode := bmRead;
905	<	bs.Database := FSQL.Database;
906	<	bs.Transaction := FSQL.Transaction;
907	<	bs.BlobID := AsQuad;
908	<	bs.SaveToStream(Stream);
909	<	finally
910	<	bs.Free;
911	<	end;
912	<	end;
913	<
914	<	function TIBXSQLVAR.GetSize: Integer;
915	<	begin
916	<	result := FXSQLVAR^.sqllen;
917	<	end;
918	<
919	<	function TIBXSQLVAR.GetSQLType: Integer;
920	<	begin
921	<	result := FXSQLVAR^.sqltype and (not 1);
922	<	end;
923	<
924	<	procedure TIBXSQLVAR.SetAsCurrency(Value: Currency);
925	<	var
926	<	xvar: TIBXSQLVAR;
927	<	i: Integer;
928	<	begin
929	<	if FSQL.Database.SQLDialect < 3 then
930	<	AsDouble := Value
931	<	else
932	<	begin
933	<	if IsNullable then
934	<	IsNull := False;
935	<	for i := 0 to FParent.FCount - 1 do
936	<	if FParent.FNames[i] = FName then
937	<	begin
938	<	xvar := FParent[i];
939	<	xvar.FXSQLVAR^.sqltype := SQL_INT64 or (xvar.FXSQLVAR^.sqltype and 1);
940	<	xvar.FXSQLVAR^.sqlscale := -4;
941	<	xvar.FXSQLVAR^.sqllen := SizeOf(Int64);
942	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
943	<	PCurrency(xvar.FXSQLVAR^.sqldata)^ := Value;
944	<	xvar.FModified := True;
945	<	end;
946	<	end;
947	<	end;
948	<
949	<	procedure TIBXSQLVAR.SetAsInt64(Value: Int64);
950	<	var
951	<	i: Integer;
952	<	xvar: TIBXSQLVAR;
953	<	begin
954	<	if IsNullable then
955	<	IsNull := False;
956	<	for i := 0 to FParent.FCount - 1 do
957	<	if FParent.FNames[i] = FName then
958	<	begin
959	<	xvar := FParent[i];
960	<	xvar.FXSQLVAR^.sqltype := SQL_INT64 or (xvar.FXSQLVAR^.sqltype and 1);
961	<	xvar.FXSQLVAR^.sqlscale := 0;
962	<	xvar.FXSQLVAR^.sqllen := SizeOf(Int64);
963	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
964	<	PInt64(xvar.FXSQLVAR^.sqldata)^ := Value;
965	<	xvar.FModified := True;
966	<	end;
967	<	end;
968	<
969	<	procedure TIBXSQLVAR.SetAsDate(Value: TDateTime);
970	<	var
971	<	i: Integer;
972	<	tm_date: TCTimeStructure;
973	<	Yr, Mn, Dy: Word;
974	<	xvar: TIBXSQLVAR;
975	<	begin
976	<	if FSQL.Database.SQLDialect < 3 then
977	<	begin
978	<	AsDateTime := Value;
979	<	exit;
980	<	end;
981	<	if IsNullable then
982	<	IsNull := False;
983	<	for i := 0 to FParent.FCount - 1 do
984	<	if FParent.FNames[i] = FName then
985	<	begin
986	<	xvar := FParent[i];
987	<	xvar.FXSQLVAR^.sqltype := SQL_TYPE_DATE or (xvar.FXSQLVAR^.sqltype and 1);
988	<	DecodeDate(Value, Yr, Mn, Dy);
989	<	with tm_date do begin
990	<	tm_sec := 0;
991	<	tm_min := 0;
992	<	tm_hour := 0;
993	<	tm_mday := Dy;
994	<	tm_mon := Mn - 1;
995	<	tm_year := Yr - 1900;
996	<	end;
997	<	xvar.FXSQLVAR^.sqllen := SizeOf(ISC_DATE);
998	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
999	<	isc_encode_sql_date(@tm_date, PISC_DATE(xvar.FXSQLVAR^.sqldata));
1000	<	xvar.FModified := True;
1001	<	end;
1002	<	end;
1003	<
1004	<	procedure TIBXSQLVAR.SetAsTime(Value: TDateTime);
1005	<	var
1006	<	i: Integer;
1007	<	tm_date: TCTimeStructure;
1008	<	Hr, Mt, S, Ms: Word;
1009	<	xvar: TIBXSQLVAR;
1010	<	begin
1011	<	if FSQL.Database.SQLDialect < 3 then
1012	<	begin
1013	<	AsDateTime := Value;
1014	<	exit;
1015	<	end;
1016	<	if IsNullable then
1017	<	IsNull := False;
1018	<	for i := 0 to FParent.FCount - 1 do
1019	<	if FParent.FNames[i] = FName then
1020	<	begin
1021	<	xvar := FParent[i];
1022	<	xvar.FXSQLVAR^.sqltype := SQL_TYPE_TIME or (xvar.FXSQLVAR^.sqltype and 1);
1023	<	DecodeTime(Value, Hr, Mt, S, Ms);
1024	<	with tm_date do begin
1025	<	tm_sec := S;
1026	<	tm_min := Mt;
1027	<	tm_hour := Hr;
1028	<	tm_mday := 0;
1029	<	tm_mon := 0;
1030	<	tm_year := 0;
1031	<	end;
1032	<	xvar.FXSQLVAR^.sqllen := SizeOf(ISC_TIME);
1033	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1034	<	isc_encode_sql_time(@tm_date, PISC_TIME(xvar.FXSQLVAR^.sqldata));
1035	<	xvar.FModified := True;
1036	<	end;
1037	<	end;
1038	<
1039	<	procedure TIBXSQLVAR.SetAsDateTime(Value: TDateTime);
1040	<	var
1041	<	i: Integer;
1042	<	tm_date: TCTimeStructure;
1043	<	Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
1044	<	xvar: TIBXSQLVAR;
1045	<	begin
1046	<	if IsNullable then
1047	<	IsNull := False;
1048	<	for i := 0 to FParent.FCount - 1 do
1049	<	if FParent.FNames[i] = FName then
1050	<	begin
1051	<	xvar := FParent[i];
1052	<	xvar.FXSQLVAR^.sqltype := SQL_TIMESTAMP or (xvar.FXSQLVAR^.sqltype and 1);
1053	<	DecodeDate(Value, Yr, Mn, Dy);
1054	<	DecodeTime(Value, Hr, Mt, S, Ms);
1055	<	with tm_date do begin
1056	<	tm_sec := S;
1057	<	tm_min := Mt;
1058	<	tm_hour := Hr;
1059	<	tm_mday := Dy;
1060	<	tm_mon := Mn - 1;
1061	<	tm_year := Yr - 1900;
1062	<	end;
1063	<	xvar.FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1064	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1065	<	isc_encode_date(@tm_date, PISC_QUAD(xvar.FXSQLVAR^.sqldata));
1066	<	xvar.FModified := True;
1067	<	end;
1068	<	end;
1069	<
1070	<	procedure TIBXSQLVAR.SetAsDouble(Value: Double);
1071	<	var
1072	<	i: Integer;
1073	<	xvar: TIBXSQLVAR;
1074	<	begin
1075	<	if IsNullable then
1076	<	IsNull := False;
1077	<	for i := 0 to FParent.FCount - 1 do
1078	<	if FParent.FNames[i] = FName then
1079	<	begin
1080	<	xvar := FParent[i];
1081	<	xvar.FXSQLVAR^.sqltype := SQL_DOUBLE or (xvar.FXSQLVAR^.sqltype and 1);
1082	<	xvar.FXSQLVAR^.sqllen := SizeOf(Double);
1083	<	xvar.FXSQLVAR^.sqlscale := 0;
1084	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1085	<	PDouble(xvar.FXSQLVAR^.sqldata)^ := Value;
1086	<	xvar.FModified := True;
1087	<	end;
1088	<	end;
1089	<
1090	<	procedure TIBXSQLVAR.SetAsFloat(Value: Float);
1091	<	var
1092	<	i: Integer;
1093	<	xvar: TIBXSQLVAR;
1094	<	begin
1095	<	if IsNullable then
1096	<	IsNull := False;
1097	<	for i := 0 to FParent.FCount - 1 do
1098	<	if FParent.FNames[i] = FName then
1099	<	begin
1100	<	xvar := FParent[i];
1101	<	xvar.FXSQLVAR^.sqltype := SQL_FLOAT or (xvar.FXSQLVAR^.sqltype and 1);
1102	<	xvar.FXSQLVAR^.sqllen := SizeOf(Float);
1103	<	xvar.FXSQLVAR^.sqlscale := 0;
1104	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1105	<	PSingle(xvar.FXSQLVAR^.sqldata)^ := Value;
1106	<	xvar.FModified := True;
1107	<	end;
1108	<	end;
1109	<
1110	<	procedure TIBXSQLVAR.SetAsLong(Value: Long);
1111	<	var
1112	<	i: Integer;
1113	<	xvar: TIBXSQLVAR;
1114	<	begin
1115	<	if IsNullable then
1116	<	IsNull := False;
1117	<	for i := 0 to FParent.FCount - 1 do
1118	<	if FParent.FNames[i] = FName then
1119	<	begin
1120	<	xvar := FParent[i];
1121	<	xvar.FXSQLVAR^.sqltype := SQL_LONG or (xvar.FXSQLVAR^.sqltype and 1);
1122	<	xvar.FXSQLVAR^.sqllen := SizeOf(Long);
1123	<	xvar.FXSQLVAR^.sqlscale := 0;
1124	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1125	<	PLong(xvar.FXSQLVAR^.sqldata)^ := Value;
1126	<	xvar.FModified := True;
1127	<	end;
1128	<	end;
1129	<
1130	<	procedure TIBXSQLVAR.SetAsPointer(Value: Pointer);
1131	<	var
1132	<	i: Integer;
1133	<	xvar: TIBXSQLVAR;
1134	<	begin
1135	<	if IsNullable and (Value = nil) then
1136	<	IsNull := True
1137	<	else begin
1138	<	IsNull := False;
1139	<	for i := 0 to FParent.FCount - 1 do
1140	<	if FParent.FNames[i] = FName then
1141	<	begin
1142	<	xvar := FParent[i];
1143	<	xvar.FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1144	<	Move(Value^, xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen);
1145	<	xvar.FModified := True;
1146	<	end;
1147	<	end;
1148	<	end;
1149	<
1150	<	procedure TIBXSQLVAR.SetAsQuad(Value: TISC_QUAD);
1151	<	var
1152	<	i: Integer;
1153	<	xvar: TIBXSQLVAR;
1154	<	begin
1155	<	if IsNullable then
1156	<	IsNull := False;
1157	<	for i := 0 to FParent.FCount - 1 do
1158	<	if FParent.FNames[i] = FName then
1159	<	begin
1160	<	xvar := FParent[i];
1161	<	if (xvar.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
1162	<	(xvar.FXSQLVAR^.sqltype and (not 1) <> SQL_ARRAY) then
1163	<	IBError(ibxeInvalidDataConversion, [nil]);
1164	<	xvar.FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1165	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1166	<	PISC_QUAD(xvar.FXSQLVAR^.sqldata)^ := Value;
1167	<	xvar.FModified := True;
1168	<	end;
1169	<	end;
1170	<
1171	<	procedure TIBXSQLVAR.SetAsShort(Value: Short);
1172	<	var
1173	<	i: Integer;
1174	<	xvar: TIBXSQLVAR;
1175	<	begin
1176	<	if IsNullable then
1177	<	IsNull := False;
1178	<	for i := 0 to FParent.FCount - 1 do
1179	<	if FParent.FNames[i] = FName then
1180	<	begin
1181	<	xvar := FParent[i];
1182	<	xvar.FXSQLVAR^.sqltype := SQL_SHORT or (xvar.FXSQLVAR^.sqltype and 1);
1183	<	xvar.FXSQLVAR^.sqllen := SizeOf(Short);
1184	<	xvar.FXSQLVAR^.sqlscale := 0;
1185	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1186	<	PShort(xvar.FXSQLVAR^.sqldata)^ := Value;
1187	<	xvar.FModified := True;
1188	<	end;
1189	<	end;
1190	<
1191	<	procedure TIBXSQLVAR.SetAsString(Value: String);
1192	<	var
1193	<	stype: Integer;
1194	<	ss: TStringStream;
1195	<
1196	<	procedure SetStringValue;
1197	<	var
1198	<	i: Integer;
1199	<	xvar: TIBXSQLVAR;
1200	<	begin
1201	<	for i := 0 to FParent.FCount - 1 do
1202	<	if FParent.FNames[i] = FName then
1203	<	begin
1204	<	xvar := FParent[i];
1205	<	if (xvar.FXSQLVAR^.sqlname = 'DB_KEY') or {do not localize}
1206	<	(xvar.FXSQLVAR^.sqlname = 'RDB$DB_KEY') then {do not localize}
1207	<	Move(Value[1], xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen)
1208	<	else begin
1209	<	xvar.FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1210	<	xvar.FXSQLVAR^.sqllen := Length(Value);
1211	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen + 1);
1212	<	if (Length(Value) > 0) then
1213	<	Move(Value[1], xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen);
1214	<	end;
1215	<	xvar.FModified := True;
1216	<	end;
1217	<	end;
1218	<
1219	<	begin
1220	<	if IsNullable then
1221	<	IsNull := False;
1222	<	stype := FXSQLVAR^.sqltype and (not 1);
1223	<	if (stype = SQL_TEXT) or (stype = SQL_VARYING) then
1224	<	SetStringValue
1225	<	else begin
1226	<	if (stype = SQL_BLOB) then
1227	<	begin
1228	<	ss := TStringStream.Create(Value);
1229	<	try
1230	<	LoadFromStream(ss);
1231	<	finally
1232	<	ss.Free;
1233	<	end;
1234	<	end
1235	<	else if Value = '' then
1236	<	IsNull := True
1237	<	else if (stype = SQL_TIMESTAMP) or (stype = SQL_TYPE_DATE) or
1238	<	(stype = SQL_TYPE_TIME) then
1239	<	SetAsDateTime(StrToDateTime(Value))
1240	<	else
1241	<	SetStringValue;
1242	<	end;
1243	<	end;
1244	<
1245	<	procedure TIBXSQLVAR.SetAsVariant(Value: Variant);
1246	<	begin
1247	<	if VarIsNull(Value) then
1248	<	IsNull := True
1249	<	else case VarType(Value) of
1250	<	varEmpty, varNull:
1251	<	IsNull := True;
1252	<	varSmallint, varInteger, varByte:
1253	<	AsLong := Value;
1254	<	varSingle, varDouble:
1255	<	AsDouble := Value;
1256	<	varCurrency:
1257	<	AsCurrency := Value;
1258	<	varBoolean:
1259	<	if Value then
1260	<	AsLong := ISC_TRUE
1261	<	else
1262	<	AsLong := ISC_FALSE;
1263	<	varDate:
1264	<	AsDateTime := Value;
1265	<	varOleStr, varString:
1266	<	AsString := Value;
1267	<	varArray:
1268	<	IBError(ibxeNotSupported, [nil]);
1269	<	varByRef, varDispatch, varError, varUnknown, varVariant:
1270	<	IBError(ibxeNotPermitted, [nil]);
1271	<	end;
1272	<	end;
1273	<
1274	<	procedure TIBXSQLVAR.SetAsXSQLVAR(Value: PXSQLVAR);
1275	<	var
1276	<	i: Integer;
1277	<	xvar: TIBXSQLVAR;
1278	<	sqlind: PShort;
1279	<	sqldata: PChar;
1280	<	local_sqllen: Integer;
1281	<	begin
1282	<	for i := 0 to FParent.FCount - 1 do
1283	<	if FParent.FNames[i] = FName then
1284	<	begin
1285	<	xvar := FParent[i];
1286	<	sqlind := xvar.FXSQLVAR^.sqlind;
1287	<	sqldata := xvar.FXSQLVAR^.sqldata;
1288	<	Move(Value^, xvar.FXSQLVAR^, SizeOf(TXSQLVAR));
1289	<	xvar.FXSQLVAR^.sqlind := sqlind;
1290	<	xvar.FXSQLVAR^.sqldata := sqldata;
1291	<	if (Value^.sqltype and 1 = 1) then
1292	<	begin
1293	<	if (xvar.FXSQLVAR^.sqlind = nil) then
1294	<	IBAlloc(xvar.FXSQLVAR^.sqlind, 0, SizeOf(Short));
1295	<	xvar.FXSQLVAR^.sqlind^ := Value^.sqlind^;
1296	<	end
1297	<	else
1298	<	if (xvar.FXSQLVAR^.sqlind <> nil) then
1299	<	ReallocMem(xvar.FXSQLVAR^.sqlind, 0);
1300	<	if ((xvar.FXSQLVAR^.sqltype and (not 1)) = SQL_VARYING) then
1301	<	local_sqllen := xvar.FXSQLVAR^.sqllen + 2
1302	<	else
1303	<	local_sqllen := xvar.FXSQLVAR^.sqllen;
1304	<	FXSQLVAR^.sqlscale := Value^.sqlscale;
1305	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, local_sqllen);
1306	<	Move(Value^.sqldata[0], xvar.FXSQLVAR^.sqldata[0], local_sqllen);
1307	<	xvar.FModified := True;
1308	<	end;
1309	<	end;
1310	<
1311	<	procedure TIBXSQLVAR.SetIsNull(Value: Boolean);
1312	<	var
1313	<	i: Integer;
1314	<	xvar: TIBXSQLVAR;
1315	<	begin
1316	<	if Value then
1317	<	begin
1318	<	if not IsNullable then
1319	<	IsNullable := True;
1320	<	for i := 0 to FParent.FCount - 1 do
1321	<	if FParent.FNames[i] = FName then
1322	<	begin
1323	<	xvar := FParent[i];
1324	<	if Assigned(xvar.FXSQLVAR^.sqlind) then
1325	<	xvar.FXSQLVAR^.sqlind^ := -1;
1326	<	xvar.FModified := True;
1327	<	end;
1328	<	end
1329	<	else
1330	<	if ((not Value) and IsNullable) then
1331	<	begin
1332	<	for i := 0 to FParent.FCount - 1 do
1333	<	if FParent.FNames[i] = FName then
1334	<	begin
1335	<	xvar := FParent[i];
1336	<	if Assigned(xvar.FXSQLVAR^.sqlind) then
1337	<	xvar.FXSQLVAR^.sqlind^ := 0;
1338	<	xvar.FModified := True;
1339	<	end;
1340	<	end;
1341	<	end;
1342	<
1343	<	procedure TIBXSQLVAR.SetIsNullable(Value: Boolean);
1344	<	var
1345	<	i: Integer;
1346	<	xvar: TIBXSQLVAR;
1347	<	begin
1348	<	for i := 0 to FParent.FCount - 1 do
1349	<	if FParent.FNames[i] = FName then
1350	<	begin
1351	<	xvar := FParent[i];
1352	<	if (Value <> IsNullable) then
1353	<	begin
1354	<	if Value then
1355	<	begin
1356	<	xvar.FXSQLVAR^.sqltype := xvar.FXSQLVAR^.sqltype or 1;
1357	<	IBAlloc(xvar.FXSQLVAR^.sqlind, 0, SizeOf(Short));
1358	<	end
1359	<	else
1360	<	begin
1361	<	xvar.FXSQLVAR^.sqltype := xvar.FXSQLVAR^.sqltype and (not 1);
1362	<	ReallocMem(xvar.FXSQLVAR^.sqlind, 0);
1363	<	end;
1364	<	end;
1365	<	end;
1366	<	end;
1367	<
1368	<	{ TIBXSQLDA }
1369	<	constructor TIBXSQLDA.Create(Query: TIBSQL);
1370	<	begin
1371	<	inherited Create;
1372	<	FSQL := Query;
1373	<	FNames := TStringList.Create;
1374	<	FSize := 0;
1375	<	FUniqueRelationName := '';
1376	<	end;
251	>	Variants, IBSQLMonitor, FBMessages, IBCustomDataSet;
252
253	<	destructor TIBXSQLDA.Destroy;
253	>	procedure IBAlloc(var P; OldSize, NewSize: Integer);
254		var
255		i: Integer;
256		begin
257	<	FNames.Free;
258	<	if FXSQLDA <> nil then
1384	<	begin
1385	<	for i := 0 to FSize - 1 do
1386	<	begin
1387	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqldata);
1388	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqlind);
1389	<	FXSQLVARs[i].Free ;
1390	<	end;
1391	<	FreeMem(FXSQLDA);
1392	<	FXSQLDA := nil;
1393	<	FXSQLVARs := nil;
1394	<	end;
1395	<	inherited Destroy;
1396	<	end;
1397	<
1398	<	procedure TIBXSQLDA.AddName(FieldName: String; Idx: Integer);
1399	<	var
1400	<	fn: String;
1401	<	begin
1402	<	fn := FormatIdentifierValue(FSQL.Database.SQLDialect, FieldName);
1403	<	while FNames.Count <= Idx do
1404	<	FNames.Add('');
1405	<	FNames[Idx] := fn;
1406	<	FXSQLVARs[Idx].FName := fn;
1407	<	FXSQLVARs[Idx].FIndex := Idx;
1408	<	end;
1409	<
1410	<	function TIBXSQLDA.GetModified: Boolean;
1411	<	var
1412	<	i: Integer;
1413	<	begin
1414	<	result := False;
1415	<	for i := 0 to FCount - 1 do
1416	<	if FXSQLVARs[i].Modified then
1417	<	begin
1418	<	result := True;
1419	<	exit;
1420	<	end;
1421	<	end;
1422	<
1423	<	function TIBXSQLDA.GetNames: String;
1424	<	begin
1425	<	result := FNames.Text;
1426	<	end;
1427	<
1428	<	function TIBXSQLDA.GetRecordSize: Integer;
1429	<	begin
1430	<	result := SizeOf(TIBXSQLDA) + XSQLDA_LENGTH(FSize);
1431	<	end;
1432	<
1433	<	function TIBXSQLDA.GetXSQLDA: PXSQLDA;
1434	<	begin
1435	<	result := FXSQLDA;
1436	<	end;
1437	<
1438	<	function TIBXSQLDA.GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
1439	<	begin
1440	<	if (Idx < 0) or (Idx >= FCount) then
1441	<	IBError(ibxeXSQLDAIndexOutOfRange, [nil]);
1442	<	result := FXSQLVARs[Idx]
1443	<	end;
1444	<
1445	<	function TIBXSQLDA.ByName(Idx: String): TIBXSQLVAR;
1446	<	begin
1447	<	result := GetXSQLVARByName(Idx);
1448	<	if result = nil then
1449	<	IBError(ibxeFieldNotFound, [Idx]);
1450	<	end;
1451	<
1452	<	function TIBXSQLDA.GetXSQLVARByName(Idx: String): TIBXSQLVAR;
1453	<	var
1454	<	s: String;
1455	<	i, Cnt: Integer;
1456	<	begin
1457	<	s := FormatIdentifierValue(FSQL.Database.SQLDialect, Idx);
1458	<	i := 0;
1459	<	Cnt := FNames.Count;
1460	<	while (i < Cnt) and (FNames[i] <> s) do Inc(i);
1461	<	if i = Cnt then
1462	<	result := nil
1463	<	else
1464	<	result := GetXSQLVAR(i);
1465	<	end;
1466	<
1467	<	procedure TIBXSQLDA.Initialize;
1468	<	var
1469	<	i, j, j_len: Integer;
1470	<	NamesWereEmpty: Boolean;
1471	<	st: String;
1472	<	bUnique: Boolean;
1473	<	begin
1474	<	bUnique := True;
1475	<	NamesWereEmpty := (FNames.Count = 0);
1476	<	if FXSQLDA <> nil then
1477	<	begin
1478	<	for i := 0 to FCount - 1 do
1479	<	begin
1480	<	with FXSQLVARs[i].Data^ do
1481	<	begin
1482	<	if bUnique and (strpas(relname) <> '') then
1483	<	begin
1484	<	if FUniqueRelationName = '' then
1485	<	FUniqueRelationName := strpas(relname)
1486	<	else
1487	<	if strpas(relname) <> FUniqueRelationName then
1488	<	begin
1489	<	FUniqueRelationName := '';
1490	<	bUnique := False;
1491	<	end;
1492	<	end;
1493	<	if NamesWereEmpty then
1494	<	begin
1495	<	st := strpas(aliasname);
1496	<	if st = '' then
1497	<	begin
1498	<	st := 'F_'; {do not localize}
1499	<	aliasname_length := 2;
1500	<	j := 1; j_len := 1;
1501	<	StrPCopy(aliasname, st + IntToStr(j));
1502	<	end
1503	<	else
1504	<	begin
1505	<	StrPCopy(aliasname, st);
1506	<	j := 0; j_len := 0;
1507	<	end;
1508	<	while GetXSQLVARByName(strpas(aliasname)) <> nil do
1509	<	begin
1510	<	Inc(j); j_len := Length(IntToStr(j));
1511	<	if j_len + aliasname_length > 31 then
1512	<	StrPCopy(aliasname,
1513	<	Copy(st, 1, 31 - j_len) +
1514	<	IntToStr(j))
1515	<	else
1516	<	StrPCopy(aliasname, st + IntToStr(j));
1517	<	end;
1518	<	Inc(aliasname_length, j_len);
1519	<	AddName(strpas(aliasname), i);
1520	<	end;
1521	<	case sqltype and (not 1) of
1522	<	SQL_TEXT, SQL_TYPE_DATE, SQL_TYPE_TIME, SQL_TIMESTAMP,
1523	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD, SQL_SHORT,
1524	<	SQL_LONG, SQL_INT64, SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT: begin
1525	<	if (sqllen = 0) then
1526	<	{ Make sure you get a valid pointer anyway
1527	<	select '' from foo }
1528	<	IBAlloc(sqldata, 0, 1)
1529	<	else
1530	<	IBAlloc(sqldata, 0, sqllen)
1531	<	end;
1532	<	SQL_VARYING: begin
1533	<	IBAlloc(sqldata, 0, sqllen + 2);
1534	<	end;
1535	<	else
1536	<	IBError(ibxeUnknownSQLDataType, [sqltype and (not 1)])
1537	<	end;
1538	<	if (sqltype and 1 = 1) then
1539	<	IBAlloc(sqlind, 0, SizeOf(Short))
1540	<	else
1541	<	if (sqlind <> nil) then
1542	<	ReallocMem(sqlind, 0);
1543	<	end;
1544	<	end;
1545	<	end;
1546	<	end;
1547	<
1548	<	procedure TIBXSQLDA.SetCount(Value: Integer);
1549	<	var
1550	<	i, OldSize: Integer;
1551	<	p : PXSQLVAR;
1552	<	begin
1553	<	FNames.Clear;
1554	<	FCount := Value;
1555	<	if FCount = 0 then
1556	<	FUniqueRelationName := ''
1557	<	else
1558	<	begin
1559	<	if FSize > 0 then
1560	<	OldSize := XSQLDA_LENGTH(FSize)
1561	<	else
1562	<	OldSize := 0;
1563	<	if FCount > FSize then
1564	<	begin
1565	<	IBAlloc(FXSQLDA, OldSize, XSQLDA_LENGTH(FCount));
1566	<	SetLength(FXSQLVARs, FCount);
1567	<	FXSQLDA^.version := SQLDA_VERSION1;
1568	<	p := @FXSQLDA^.sqlvar[0];
1569	<	for i := 0 to FCount - 1 do
1570	<	begin
1571	<	if i >= FSize then
1572	<	FXSQLVARs[i] := TIBXSQLVAR.Create(self, FSQL);
1573	<	FXSQLVARs[i].FXSQLVAR := p;
1574	<	p := Pointer(PChar(p) + sizeof(FXSQLDA^.sqlvar));
1575	<	end;
1576	<	FSize := FCount;
1577	<	end;
1578	<	if FSize > 0 then
1579	<	begin
1580	<	FXSQLDA^.sqln := Value;
1581	<	FXSQLDA^.sqld := Value;
1582	<	end;
1583	<	end;
257	>	ReallocMem(Pointer(P), NewSize);
258	>	for i := OldSize to NewSize - 1 do PChar(P)[i] := #0;
259		end;
260
261		{ TIBOutputDelimitedFile }
262
263		destructor TIBOutputDelimitedFile.Destroy;
264		begin
265	<	{$IFDEF LINUX}
265	>	{$IFDEF UNIX}
266		if FHandle <> -1 then
267		fpclose(FHandle);
268		{$ELSE}
#	Line 1603 | Line 278 | end;
278		procedure TIBOutputDelimitedFile.ReadyFile;
279		var
280		i: Integer;
281	<	{$IFDEF LINUX}
281	>	{$IFDEF UNIX}
282		BytesWritten: cint;
283		{$ELSE}
284		BytesWritten: DWORD;
#	Line 1614 | Line 289 | begin
289		FColDelimiter := TAB;
290		if FRowDelimiter = '' then
291		FRowDelimiter := CRLF;
292	<	{$IFDEF LINUX}
292	>	{$IFDEF UNIX}
293		FHandle := FpOpen(Filename,O_WrOnly or O_Creat);
294		{$ELSE}
295		FHandle := CreateFile(PChar(Filename), GENERIC_WRITE, 0, nil, CREATE_ALWAYS,
#	Line 1626 | 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	<	{$IFDEF LINUX}
308	>	{$IFDEF UNIX}
309		if FHandle <> -1 then
310		BytesWritten := FpWrite(FHandle,st[1],Length(st));
311		if BytesWritten = -1 then
312		raise Exception.Create('File Write Error');
313		{$ELSE}
314	<	WriteFile(FHandle, PChar(st[1]), Length(st), BytesWritten, nil);
314	>	WriteFile(FHandle, st[1], Length(st), BytesWritten, nil);
315		{$ENDIF}
316		end;
317		end;
#	Line 1644 | Line 319 | end;
319		function TIBOutputDelimitedFile.WriteColumns: Boolean;
320		var
321		i: Integer;
322	<	{$IFDEF LINUX}
322	>	{$IFDEF UNIX}
323		BytesWritten: cint;
324		{$ELSE}
325		BytesWritten: DWORD;
#	Line 1652 | Line 327 | var
327		st: string;
328		begin
329		result := False;
330	<	{$IFDEF LINUX}
330	>	{$IFDEF UNIX}
331		if FHandle <> -1 then
332		{$ELSE}
333		if FHandle <> 0 then
#	Line 1666 | Line 341 | begin
341		st := st + StripString(Columns[i].AsString, FColDelimiter + FRowDelimiter);
342		end;
343		st := st + FRowDelimiter;
344	<	{$IFDEF LINUX}
344	>	{$IFDEF UNIX}
345		BytesWritten := FpWrite(FHandle,st[1],Length(st));
346		{$ELSE}
347		WriteFile(FHandle, st[1], Length(st), BytesWritten, nil);
#	Line 1783 | Line 458 | end;
458		{ TIBOutputRawFile }
459		destructor TIBOutputRawFile.Destroy;
460		begin
461	<	{$IFDEF LINUX}
461	>	{$IFDEF UNIX}
462		if FHandle <> -1 then
463		fpclose(FHandle);
464		{$ELSE}
#	Line 1798 | Line 473 | end;
473
474		procedure TIBOutputRawFile.ReadyFile;
475		begin
476	<	{$IFDEF LINUX}
476	>	{$IFDEF UNIX}
477		FHandle := FpOpen(Filename,O_WrOnly or O_Creat);
478		{$ELSE}
479		FHandle := CreateFile(PChar(Filename), GENERIC_WRITE, 0, nil, CREATE_ALWAYS,
#	Line 1818 | Line 493 | begin
493		begin
494		for i := 0 to Columns.Count - 1 do
495		begin
496	<	{$IFDEF LINUX}
497	<	BytesWritten := FpWrite(FHandle,Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen);
496	>	{$IFDEF UNIX}
497	>	BytesWritten := FpWrite(FHandle,Columns[i].GetAsPointer^, Columns[i].GetSize);
498		{$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		{$ENDIF}
502	<	if BytesWritten <> DWORD(Columns[i].Data^.sqllen) then
502	>	if BytesWritten <> DWORD(Columns[i].GetSize) then
503		exit;
504		end;
505		result := True;
#	Line 1834 | Line 509 | end;
509		{ TIBInputRawFile }
510		destructor TIBInputRawFile.Destroy;
511		begin
512	<	{$IFDEF LINUX}
512	>	{$IFDEF UNIX}
513		if FHandle <> -1 then
514		fpclose(FHandle);
515		{$ELSE}
#	Line 1850 | Line 525 | var
525		BytesRead: DWord;
526		begin
527		result := False;
528	<	{$IFDEF LINUX}
528	>	{$IFDEF UNIX}
529		if FHandle <> -1 then
530		{$ELSE}
531		if FHandle <> 0 then
#	Line 1858 | Line 533 | begin
533		begin
534		for i := 0 to Params.Count - 1 do
535		begin
536	<	{$IFDEF LINUX}
537	<	BytesRead := FpRead(FHandle,Params[i].Data^.sqldata^,Params[i].Data^.sqllen);
536	>	{$IFDEF UNIX}
537	>	BytesRead := FpRead(FHandle,Params[i].GetAsPointer^,Params[i].GetSize);
538		{$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		{$ENDIF}
542	<	if BytesRead <> DWORD(Params[i].Data^.sqllen) then
542	>	if BytesRead <> DWORD(Params[i].GetSize) then
543		exit;
544		end;
545		result := True;
#	Line 1873 | Line 548 | end;
548
549		procedure TIBInputRawFile.ReadyFile;
550		begin
551	<	{$IFDEF LINUX}
551	>	{$IFDEF UNIX}
552		if FHandle <> -1 then
553		fpclose(FHandle);
554		FHandle := FpOpen(Filename,O_RdOnly);
#	Line 1893 | Line 568 | end;
568		constructor TIBSQL.Create(AOwner: TComponent);
569		begin
570		inherited Create(AOwner);
1896	–	FIBLoaded := False;
1897	–	CheckIBLoaded;
1898	–	FIBLoaded := True;
571		FGenerateParamNames := False;
572		FGoToFirstRecordOnExecute := True;
573		FBase := TIBBase.Create(Self);
574		FBase.BeforeDatabaseDisconnect := DoBeforeDatabaseDisconnect;
575		FBase.BeforeTransactionEnd := BeforeTransactionEnd;
1904	–	FBOF := False;
1905	–	FEOF := False;
1906	–	FPrepared := False;
576		FRecordCount := 0;
577		FSQL := TStringList.Create;
578		TStringList(FSQL).OnChanging := SQLChanging;
579	<	FProcessedSQL := TStringList.Create;
1911	<	FHandle := nil;
1912	<	FSQLParams := TIBXSQLDA.Create(self);
1913	<	FSQLRecord := TIBXSQLDA.Create(self);
1914	<	FSQLType := SQLUnknown;
579	>	TStringList(FSQL).OnChange := SQLChanged;
580		FParamCheck := True;
1916	–	FCursor := Name + RandomString(8);
581		if AOwner is TIBDatabase then
582		Database := TIBDatabase(AOwner)
583		else
#	Line 1923 | Line 587 | end;
587
588		destructor TIBSQL.Destroy;
589		begin
590	<	if FIBLoaded then
591	<	begin
592	<	if (FOpen) then
1929	<	Close;
1930	<	if (FHandle <> nil) then
1931	<	FreeHandle;
1932	<	FSQL.Free;
1933	<	FProcessedSQL.Free;
1934	<	FBase.Free;
1935	<	FSQLParams.Free;
1936	<	FSQLRecord.Free;
1937	<	end;
590	>	FreeHandle;
591	>	FSQL.Free;
592	>	FBase.Free;
593		inherited Destroy;
594		end;
595
#	Line 1942 | 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 1954 | 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 1971 | 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;
1990	–	var
1991	–	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(
2000	<	[isc_bad_stmt_handle, isc_dsql_cursor_close_err]) then
2001	<	IBDatabaseError;
2002	<	end;
2003	<	finally
2004	<	FEOF := False;
2005	<	FBOF := False;
2006	<	FOpen := False;
2007	<	FRecordCount := 0;
2008	<	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
2015	<	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.GetOpen: Boolean;
667	>	begin
668	>	Result := FResultSet <> nil;
669		end;
670
671	<	function TIBSQL.Current: TIBXSQLDA;
671	>	function TIBSQL.GetPrepared: Boolean;
672		begin
673	<	result := FSQLRecord;
673	>	Result := (FStatement <> nil) and FStatement.IsPrepared;
674	>	end;
675	>
676	>	function TIBSQL.GetSQLStatementType: TIBSQLStatementTypes;
677	>	begin
678	>	if FStatement = nil then
679	>	Result := SQLUnknown
680	>	else
681	>	Result := FStatement.GetSQLStatementType;
682	>	end;
683	>
684	>	procedure TIBSQL.SetUniqueParamNames(AValue: Boolean);
685	>	begin
686	>	if FUniqueParamNames = AValue then Exit;
687	>	FreeHandle;
688	>	FUniqueParamNames := AValue;
689		end;
690
691		procedure TIBSQL.DoBeforeDatabaseDisconnect(Sender: TObject);
692		begin
693	<	if (FHandle <> nil) then begin
2029	<	Close;
2030	<	FreeHandle;
2031	<	end;
693	>	FreeHandle;
694		end;
695
696		procedure TIBSQL.ExecQuery;
697		var
698		fetch_res: ISC_STATUS;
699	+	{$IFDEF IBXQUERYSTATS}
700	+	stats: TPerfCounters;
701	+	{$ENDIF}
702	+	{$IFDEF IBXQUERYTIME}
703	+	tmsecs: comp;
704	+	{$ENDIF}
705		begin
706		CheckClosed;
707		if not Prepared then Prepare;
708		CheckValidStatement;
709	<	case FSQLType of
710	<	SQLSelect: begin
711	<	Call(isc_dsql_execute2(StatusVector,
712	<	TRHandle,
713	<	@FHandle,
714	<	Database.SQLDialect,
715	<	FSQLParams.AsXSQLDA,
716	<	nil), True);
717	<	Call(
718	<	isc_dsql_set_cursor_name(StatusVector, @FHandle, PChar(FCursor), 0),
719	<	True);
720	<	FOpen := True;
721	<	FBOF := True;
722	<	FEOF := False;
723	<	FRecordCount := 0;
724	<	if FGoToFirstRecordOnExecute then
725	<	Next;
726	<	end;
727	<	SQLExecProcedure: begin
728	<	fetch_res := Call(isc_dsql_execute2(StatusVector,
729	<	TRHandle,
2062	<	@FHandle,
2063	<	Database.SQLDialect,
2064	<	FSQLParams.AsXSQLDA,
2065	<	FSQLRecord.AsXSQLDA), False);
2066	<	if (fetch_res <> 0) and (fetch_res <> isc_deadlock) then
2067	<	begin
2068	<	{ Sometimes a prepared stored procedure appears to get
2069	<	off sync on the server ....This code is meant to try
2070	<	to work around the problem simply by "retrying". This
2071	<	need to be reproduced and fixed.
2072	<	}
2073	<	isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
2074	<	PChar(FProcessedSQL.Text), 1, nil);
2075	<	Call(isc_dsql_execute2(StatusVector,
2076	<	TRHandle,
2077	<	@FHandle,
2078	<	Database.SQLDialect,
2079	<	FSQLParams.AsXSQLDA,
2080	<	FSQLRecord.AsXSQLDA), True);
2081	<	end;
2082	<	end
2083	<	else
2084	<	Call(isc_dsql_execute(StatusVector,
2085	<	TRHandle,
2086	<	@FHandle,
2087	<	Database.SQLDialect,
2088	<	FSQLParams.AsXSQLDA), True)
709	>	{$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 HAS_SQLMONITOR}
732	<	if not (csDesigning in ComponentState) then
733	<	MonitorHook.SQLExecute(Self);
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	+	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;
2102	<	var
2103	<	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]);
2108	–	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;
2132	<	var
2133	<	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
2147	<	Close;
2148	<	raise;
2149	<	end;
2150	<	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;
815	<	{$IFDEF HAS_SQLMONITOR}
813	>	end
814	>	else
815	>	FEOF := true;
816	>
817		if not (csDesigning in ComponentState) then
818		MonitorHook.SQLFetch(Self);
2158	–	{$ENDIF}
819		end;
820		end;
821
822		procedure TIBSQL.FreeHandle;
2163	–	var
2164	–	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
2174	<	isc_res :=
2175	<	Call(isc_dsql_free_statement(StatusVector, @FHandle, DSQL_drop), False);
2176	<	if (StatusVector^ = 1) and (isc_res > 0) and (isc_res <> isc_bad_stmt_handle) then
2177	<	IBDataBaseError;
2178	<	end;
2179	<	finally
2180	<	FPrepared := False;
2181	<	FHandle := nil;
2182	<	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 2187 | Line 836 | begin
836		result := FBase.Database;
837		end;
838
2190	–	function TIBSQL.GetDBHandle: PISC_DB_HANDLE;
2191	–	begin
2192	–	result := FBase.DBHandle;
2193	–	end;
2194	–
839		function TIBSQL.GetPlan: String;
2196	–	var
2197	–	result_buffer: array[0..16384] of Char;
2198	–	result_length, i: Integer;
2199	–	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 := Char(isc_info_sql_get_plan);
2208	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 2, @info_request,
2209	<	SizeOf(result_buffer), result_buffer), True);
2210	<	if (result_buffer[0] <> Char(isc_info_sql_get_plan)) then
2211	<	IBError(ibxeUnknownError, [nil]);
2212	<	result_length := isc_vax_integer(@result_buffer[1], 2);
2213	<	SetString(result, nil, result_length);
2214	<	for i := 1 to result_length do
2215	<	result[i] := result_buffer[i + 2];
2216	<	result := Trim(result);
2217	<	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;
855	>	function TIBSQL.GetRowsAffected: Integer;
856		var
857	<	result_buffer: array[0..1048] of Char;
2228	<	info_request: Char;
857	>	SelectCount, InsertCount, UpdateCount, DeleteCount: integer;
858		begin
859		if not Prepared then
860	<	result := -1
861	<	else begin
862	<	info_request := Char(isc_info_sql_records);
863	<	if isc_dsql_sql_info(StatusVector, @FHandle, 1, @info_request,
864	<	SizeOf(result_buffer), result_buffer) > 0 then
2236	<	IBDatabaseError;
2237	<	if (result_buffer[0] <> Char(isc_info_sql_records)) then
2238	<	result := -1
2239	<	else
2240	<	case SQLType of
2241	<	SQLUpdate:   Result := isc_vax_integer(@result_buffer[6], 4);
2242	<	SQLDelete:   Result := isc_vax_integer(@result_buffer[13], 4);
2243	<	SQLInsert:   Result := isc_vax_integer(@result_buffer[27], 4);
2244	<	else         Result := -1 ;
2245	<	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 2258 | Line 877 | begin
877		result := FBase.Transaction;
878		end;
879
2261	–	function TIBSQL.GetTRHandle: PISC_TR_HANDLE;
2262	–	begin
2263	–	result := FBase.TRHandle;
2264	–	end;
2265	–
2266	–	{
2267	–	Preprocess SQL
2268	–	Using FSQL, process the typed SQL and put the process SQL
2269	–	in FProcessedSQL and parameter names in FSQLParams
2270	–	}
2271	–	procedure TIBSQL.PreprocessSQL;
2272	–	var
2273	–	cCurChar, cNextChar, cQuoteChar: Char;
2274	–	sSQL, sProcessedSQL, sParamName: String;
2275	–	i, iLenSQL, iSQLPos: Integer;
2276	–	iCurState, iCurParamState: Integer;
2277	–	iParamSuffix: Integer;
2278	–	slNames: TStrings;
2279	–
2280	–	const
2281	–	DefaultState = 0;
2282	–	CommentState = 1;
2283	–	QuoteState = 2;
2284	–	ParamState = 3;
2285	–	ParamDefaultState = 0;
2286	–	ParamQuoteState = 1;
2287	–
2288	–	procedure AddToProcessedSQL(cChar: Char);
2289	–	begin
2290	–	sProcessedSQL[iSQLPos] := cChar;
2291	–	Inc(iSQLPos);
2292	–	end;
2293	–
2294	–	begin
2295	–	slNames := TStringList.Create;
2296	–	try
2297	–	{ Do some initializations of variables }
2298	–	iParamSuffix := 0;
2299	–	cQuoteChar := '''';
2300	–	sSQL := FSQL.Text;
2301	–	iLenSQL := Length(sSQL);
2302	–	SetString(sProcessedSQL, nil, iLenSQL + 1);
2303	–	i := 1;
2304	–	iSQLPos := 1;
2305	–	iCurState := DefaultState;
2306	–	iCurParamState := ParamDefaultState;
2307	–	{ Now, traverse through the SQL string, character by character,
2308	–	picking out the parameters and formatting correctly for InterBase }
2309	–	while (i <= iLenSQL) do begin
2310	–	{ Get the current token and a look-ahead }
2311	–	cCurChar := sSQL[i];
2312	–	if i = iLenSQL then
2313	–	cNextChar := #0
2314	–	else
2315	–	cNextChar := sSQL[i + 1];
2316	–	{ Now act based on the current state }
2317	–	case iCurState of
2318	–	DefaultState: begin
2319	–	case cCurChar of
2320	–	'''', '"': begin
2321	–	cQuoteChar := cCurChar;
2322	–	iCurState := QuoteState;
2323	–	end;
2324	–	'?', ':': begin
2325	–	iCurState := ParamState;
2326	–	AddToProcessedSQL('?');
2327	–	end;
2328	–	'/': if (cNextChar = '*') then begin
2329	–	AddToProcessedSQL(cCurChar);
2330	–	Inc(i);
2331	–	iCurState := CommentState;
2332	–	end;
2333	–	end;
2334	–	end;
2335	–	CommentState: begin
2336	–	if (cNextChar = #0) then
2337	–	IBError(ibxeSQLParseError, [SEOFInComment])
2338	–	else if (cCurChar = '*') then begin
2339	–	if (cNextChar = '/') then
2340	–	iCurState := DefaultState;
2341	–	end;
2342	–	end;
2343	–	QuoteState: begin
2344	–	if cNextChar = #0 then
2345	–	IBError(ibxeSQLParseError, [SEOFInString])
2346	–	else if (cCurChar = cQuoteChar) then begin
2347	–	if (cNextChar = cQuoteChar) then begin
2348	–	AddToProcessedSQL(cCurChar);
2349	–	Inc(i);
2350	–	end else
2351	–	iCurState := DefaultState;
2352	–	end;
2353	–	end;
2354	–	ParamState:
2355	–	begin
2356	–	{ collect the name of the parameter }
2357	–	if iCurParamState = ParamDefaultState then
2358	–	begin
2359	–	if cCurChar = '"' then
2360	–	iCurParamState := ParamQuoteState
2361	–	else if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
2362	–	sParamName := sParamName + cCurChar
2363	–	else if FGenerateParamNames then
2364	–	begin
2365	–	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
2366	–	Inc(iParamSuffix);
2367	–	iCurState := DefaultState;
2368	–	slNames.Add(sParamName);
2369	–	sParamName := '';
2370	–	end
2371	–	else
2372	–	IBError(ibxeSQLParseError, [SParamNameExpected]);
2373	–	end
2374	–	else begin
2375	–	{ determine if Quoted parameter name is finished }
2376	–	if cCurChar = '"' then
2377	–	begin
2378	–	Inc(i);
2379	–	slNames.Add(sParamName);
2380	–	SParamName := '';
2381	–	iCurParamState := ParamDefaultState;
2382	–	iCurState := DefaultState;
2383	–	end
2384	–	else
2385	–	sParamName := sParamName + cCurChar
2386	–	end;
2387	–	{ determine if the unquoted parameter name is finished }
2388	–	if (iCurParamState <> ParamQuoteState) and
2389	–	(iCurState <> DefaultState) then
2390	–	begin
2391	–	if not (cNextChar in ['A'..'Z', 'a'..'z',
2392	–	'0'..'9', '_', '$']) then begin
2393	–	Inc(i);
2394	–	iCurState := DefaultState;
2395	–	slNames.Add(sParamName);
2396	–	sParamName := '';
2397	–	end;
2398	–	end;
2399	–	end;
2400	–	end;
2401	–	if iCurState <> ParamState then
2402	–	AddToProcessedSQL(sSQL[i]);
2403	–	Inc(i);
2404	–	end;
2405	–	AddToProcessedSQL(#0);
2406	–	FSQLParams.Count := slNames.Count;
2407	–	for i := 0 to slNames.Count - 1 do
2408	–	FSQLParams.AddName(slNames[i], i);
2409	–	FProcessedSQL.Text := sProcessedSQL;
2410	–	finally
2411	–	slNames.Free;
2412	–	end;
2413	–	end;
2414	–
880		procedure TIBSQL.SetDatabase(Value: TIBDatabase);
881		begin
882		FBase.Database := Value;
883		end;
884
885		procedure TIBSQL.Prepare;
2421	–	var
2422	–	stmt_len: Integer;
2423	–	res_buffer: array[0..7] of Char;
2424	–	type_item: Char;
886		begin
887		CheckClosed;
888		FBase.CheckDatabase;
889		FBase.CheckTransaction;
890	<	if FPrepared then
890	>	Close;
891	>	if Prepared then
892		exit;
893		if (FSQL.Text = '') then
894		IBError(ibxeEmptyQuery, [nil]);
895	+
896	+	if FStatement <> nil then
897	+	FStatement.Prepare(Transaction.TransactionIntf)
898	+	else
899		if not ParamCheck then
900	<	FProcessedSQL.Text := FSQL.Text
900	>	FStatement := Database.Attachment.Prepare(Transaction.TransactionIntf,SQL.Text)
901		else
902	<	PreprocessSQL;
903	<	if (FProcessedSQL.Text = '') then
904	<	IBError(ibxeEmptyQuery, [nil]);
905	<	try
906	<	Call(isc_dsql_alloc_statement2(StatusVector, DBHandle,
907	<	@FHandle), True);
908	<	Call(isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
909	<	PChar(FProcessedSQL.Text), Database.SQLDialect, nil), True);
910	<	{ After preparing the statement, query the stmt type and possibly
911	<	create a FSQLRecord "holder" }
912	<	{ Get the type of the statement }
2447	<	type_item := Char(isc_info_sql_stmt_type);
2448	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 1, @type_item,
2449	<	SizeOf(res_buffer), res_buffer), True);
2450	<	if (res_buffer[0] <> Char(isc_info_sql_stmt_type)) then
2451	<	IBError(ibxeUnknownError, [nil]);
2452	<	stmt_len := isc_vax_integer(@res_buffer[1], 2);
2453	<	FSQLType := TIBSQLTypes(isc_vax_integer(@res_buffer[3], stmt_len));
2454	<	{ Done getting the type }
2455	<	case FSQLType of
2456	<	SQLGetSegment,
2457	<	SQLPutSegment,
2458	<	SQLStartTransaction: begin
2459	<	FreeHandle;
2460	<	IBError(ibxeNotPermitted, [nil]);
2461	<	end;
2462	<	SQLCommit,
2463	<	SQLRollback,
2464	<	SQLDDL, SQLSetGenerator,
2465	<	SQLInsert, SQLUpdate, SQLDelete, SQLSelect, SQLSelectForUpdate,
2466	<	SQLExecProcedure: begin
2467	<	{ We already know how many inputs there are, so... }
2468	<	if (FSQLParams.FXSQLDA <> nil) and
2469	<	(Call(isc_dsql_describe_bind(StatusVector, @FHandle, Database.SQLDialect,
2470	<	FSQLParams.FXSQLDA), False) > 0) then
2471	<	IBDataBaseError;
2472	<	FSQLParams.Initialize;
2473	<	if FSQLType in [SQLSelect, SQLSelectForUpdate,
2474	<	SQLExecProcedure] then begin
2475	<	{ Allocate an initial output descriptor (with one column) }
2476	<	FSQLRecord.Count := 1;
2477	<	{ Using isc_dsql_describe, get the right size for the columns... }
2478	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2479	<	if FSQLRecord.FXSQLDA^.sqld > FSQLRecord.FXSQLDA^.sqln then begin
2480	<	FSQLRecord.Count := FSQLRecord.FXSQLDA^.sqld;
2481	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2482	<	end else if FSQLRecord.FXSQLDA^.sqld = 0 then
2483	<	FSQLRecord.Count := 0;
2484	<	FSQLRecord.Initialize;
2485	<	end;
2486	<	end;
2487	<	end;
2488	<	FPrepared := True;
2489	<	{$IFDEF HAS_SQLMONITOR}
2490	<	if not (csDesigning in ComponentState) then
902	>	FStatement := Database.Attachment.PrepareWithNamedParameters(
903	>	Transaction.TransactionIntf,
904	>	SQL.Text,
905	>	GenerateParamNames);
906	>	{$IFDEF IBXQUERYSTATS}
907	>	FStatement.EnableStatistics(true);
908	>	{$ENDIF}
909	>	FMetaData := FStatement.GetMetaData;
910	>	FSQLParams := FStatement.GetSQLParams;
911	>	FStatement.SetRetainInterfaces(true);
912	>	if not (csDesigning in ComponentState) then
913		MonitorHook.SQLPrepare(Self);
2492	–	{$ENDIF}
2493	–	except
2494	–	on E: Exception do begin
2495	–	if (FHandle <> nil) then
2496	–	FreeHandle;
2497	–	raise;
2498	–	end;
2499	–	end;
914		end;
915
916		function TIBSQL.GetUniqueRelationName: String;
917		begin
918	<	if FPrepared and (FSQLType = SQLSelect) then
919	<	result := FSQLRecord.UniqueRelationName
918	>	if Prepared and (GetSQLStatementType = SQLSelect) then
919	>	result := FMetaData.GetUniqueRelationName
920		else
921		result := '';
922		end;
#	Line 2529 | Line 943 | procedure TIBSQL.SQLChanging(Sender: TOb
943		begin
944		if Assigned(OnSQLChanging) then
945		OnSQLChanging(Self);
946	<	if FHandle <> nil then FreeHandle;
946	>
947	>	FreeHandle;
948		end;
949
950	<	procedure TIBSQL.BeforeTransactionEnd(Sender: TObject);
950	>	procedure TIBSQL.SQLChanged(Sender: TObject);
951		begin
952	<	if (FOpen) then
953	<	Close;
952	>	if assigned(OnSQLChanged) then
953	>	OnSQLChanged(self);
954	>	end;
955	>
956	>	procedure TIBSQL.BeforeTransactionEnd(Sender: TObject;
957	>	Action: TTransactionAction);
958	>	begin
959	>	if not (Owner is TIBCustomDataSet) then
960	>	FreeHandle;
961		end;
962
963		end.

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