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

Comparing ibx/trunk/runtime/IBSQL.pas (file contents):
Revision 1 by tony, Mon Jul 31 16:43:00 2000 UTC vs.
Revision 45 by tony, Tue Dec 6 10:33:46 2016 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		interface
41
42		uses
43	<	Windows, SysUtils, Classes, Forms, Controls, IBHeader,
44	<	IBErrorCodes, IBExternals, DB, IB, IBDatabase, IBUtils, IBXConst;
43	>	{$IFDEF WINDOWS }
44	>	Windows,
45	>	{$ELSE}
46	>	baseunix, unix,
47	>	{$ENDIF}
48	>	SysUtils, Classes, IBExternals, IB, IBDatabase, IBUtils;
49
50		type
38	–	TIBSQL = class;
39	–	TIBXSQLDA = class;
40	–
41	–	{ TIBXSQLVAR }
42	–	TIBXSQLVAR = class(TObject)
43	–	private
44	–	FParent: TIBXSQLDA;
45	–	FSQL: TIBSQL;
46	–	FIndex: Integer;
47	–	FModified: Boolean;
48	–	FName: String;
49	–	FXSQLVAR: PXSQLVAR;       { Point to the PXSQLVAR in the owner object }
50	–
51	–	function AdjustScale(Value: Int64; Scale: Integer): Double;
52	–	function AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
53	–	function AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
54	–	function GetAsCurrency: Currency;
55	–	function GetAsInt64: Int64;
56	–	function GetAsDateTime: TDateTime;
57	–	function GetAsDouble: Double;
58	–	function GetAsFloat: Float;
59	–	function GetAsLong: Long;
60	–	function GetAsPointer: Pointer;
61	–	function GetAsQuad: TISC_QUAD;
62	–	function GetAsShort: Short;
63	–	function GetAsString: String;
64	–	function GetAsVariant: Variant;
65	–	function GetAsXSQLVAR: PXSQLVAR;
66	–	function GetIsNull: Boolean;
67	–	function GetIsNullable: Boolean;
68	–	function GetSize: Integer;
69	–	function GetSQLType: Integer;
70	–	procedure SetAsCurrency(Value: Currency);
71	–	procedure SetAsInt64(Value: Int64);
72	–	procedure SetAsDate(Value: TDateTime);
73	–	procedure SetAsTime(Value: TDateTime);
74	–	procedure SetAsDateTime(Value: TDateTime);
75	–	procedure SetAsDouble(Value: Double);
76	–	procedure SetAsFloat(Value: Float);
77	–	procedure SetAsLong(Value: Long);
78	–	procedure SetAsPointer(Value: Pointer);
79	–	procedure SetAsQuad(Value: TISC_QUAD);
80	–	procedure SetAsShort(Value: Short);
81	–	procedure SetAsString(Value: String);
82	–	procedure SetAsVariant(Value: Variant);
83	–	procedure SetAsXSQLVAR(Value: PXSQLVAR);
84	–	procedure SetIsNull(Value: Boolean);
85	–	procedure SetIsNullable(Value: Boolean);
86	–	public
87	–	constructor Create(Parent: TIBXSQLDA; Query: TIBSQL);
88	–	procedure Assign(Source: TIBXSQLVAR);
89	–	procedure LoadFromFile(const FileName: String);
90	–	procedure LoadFromStream(Stream: TStream);
91	–	procedure SaveToFile(const FileName: String);
92	–	procedure SaveToStream(Stream: TStream);
93	–	property AsDate: TDateTime read GetAsDateTime write SetAsDate;
94	–	property AsTime: TDateTime read GetAsDateTime write SetAsTime;
95	–	property AsDateTime: TDateTime read GetAsDateTime write SetAsDateTime;
96	–	property AsDouble: Double read GetAsDouble write SetAsDouble;
97	–	property AsFloat: Float read GetAsFloat write SetAsFloat;
98	–	property AsCurrency: Currency read GetAsCurrency write SetAsCurrency;
99	–	property AsInt64: Int64 read GetAsInt64 write SetAsInt64;
100	–	property AsInteger: Integer read GetAsLong write SetAsLong;
101	–	property AsLong: Long read GetAsLong write SetAsLong;
102	–	property AsPointer: Pointer read GetAsPointer write SetAsPointer;
103	–	property AsQuad: TISC_QUAD read GetAsQuad write SetAsQuad;
104	–	property AsShort: Short read GetAsShort write SetAsShort;
105	–	property AsString: String read GetAsString write SetAsString;
106	–	property AsVariant: Variant read GetAsVariant write SetAsVariant;
107	–	property AsXSQLVAR: PXSQLVAR read GetAsXSQLVAR write SetAsXSQLVAR;
108	–	property Data: PXSQLVAR read FXSQLVAR write FXSQLVAR;
109	–	property IsNull: Boolean read GetIsNull write SetIsNull;
110	–	property IsNullable: Boolean read GetIsNullable write SetIsNullable;
111	–	property Index: Integer read FIndex;
112	–	property Modified: Boolean read FModified write FModified;
113	–	property Name: String read FName;
114	–	property Size: Integer read GetSize;
115	–	property SQLType: Integer read GetSQLType;
116	–	property Value: Variant read GetAsVariant write SetAsVariant;
117	–	end;
118	–
119	–	TIBXSQLVARArray = Array of TIBXSQLVAR;
120	–
121	–	{ TIBXSQLVAR }
122	–	TIBXSQLDA = class(TObject)
123	–	protected
124	–	FSQL: TIBSQL;
125	–	FCount: Integer;
126	–	FNames: TStrings;
127	–	FSize: Integer;
128	–	FXSQLDA: PXSQLDA;
129	–	FXSQLVARs: TIBXSQLVARArray; { array of IBXQLVARs }
130	–	FUniqueRelationName: String;
131	–	function GetModified: Boolean;
132	–	function GetNames: String;
133	–	function GetRecordSize: Integer;
134	–	function GetXSQLDA: PXSQLDA;
135	–	function GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
136	–	function GetXSQLVARByName(Idx: String): TIBXSQLVAR;
137	–	procedure Initialize;
138	–	procedure SetCount(Value: Integer);
139	–	public
140	–	constructor Create(Query: TIBSQL);
141	–	destructor Destroy; override;
142	–	procedure AddName(FieldName: String; Idx: Integer);
143	–	function ByName(Idx: String): TIBXSQLVAR;
144	–	property AsXSQLDA: PXSQLDA read GetXSQLDA;
145	–	property Count: Integer read FCount write SetCount;
146	–	property Modified: Boolean read GetModified;
147	–	property Names: String read GetNames;
148	–	property RecordSize: Integer read GetRecordSize;
149	–	property Vars[Idx: Integer]: TIBXSQLVAR read GetXSQLVAR; default;
150	–	property UniqueRelationName: String read FUniqueRelationName;
151	–	end;
152	–
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 178 | Line 76 | type
76		{ TIBOutputDelimitedFile }
77		TIBOutputDelimitedFile = class(TIBBatchOutput)
78		protected
79	+	{$IFDEF UNIX}
80	+	FHandle: cint;
81	+	{$ELSE}
82		FHandle: THandle;
83	+	{$ENDIF}
84		FOutputTitles: Boolean;
85		FColDelimiter,
86		FRowDelimiter: string;
#	Line 217 | Line 119 | type
119		{ TIBOutputRawFile }
120		TIBOutputRawFile = class(TIBBatchOutput)
121		protected
122	+	{$IFDEF UNIX}
123	+	FHandle: cint;
124	+	{$ELSE}
125		FHandle: THandle;
126	+	{$ENDIF}
127		public
128		destructor Destroy; override;
129		procedure ReadyFile; override;
#	Line 227 | Line 133 | type
133		{ TIBInputRawFile }
134		TIBInputRawFile = class(TIBBatchInput)
135		protected
136	+	{$IFDEF UNIX}
137	+	FHandle: cint;
138	+	{$ELSE}
139		FHandle: THandle;
140	+	{$ENDIF}
141		public
142		destructor Destroy; override;
143		function ReadParameters: Boolean; override;
#	Line 235 | Line 145 | type
145		end;
146
147		{ TIBSQL }
238	–	TIBSQLTypes = (SQLUnknown, SQLSelect, SQLInsert,
239	–	SQLUpdate, SQLDelete, SQLDDL,
240	–	SQLGetSegment, SQLPutSegment,
241	–	SQLExecProcedure, SQLStartTransaction,
242	–	SQLCommit, SQLRollback,
243	–	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? }
251	<	FEOF,                          { At EOF? }
252	<	FGoToFirstRecordOnExecute,     { Automatically position record on first record after executing }
253	<	FOpen,                         { Is a cursor open? }
254	<	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? }
256	–	FCursor: String;               { Cursor name...}
257	–	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 }
263	<	FSQLRecord: TIBXSQLDA;         { The current record }
264	<	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;
268	–	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;
277	–	function GetTRHandle: PISC_TR_HANDLE;
278	–	procedure PreprocessSQL;
183		procedure SetDatabase(Value: TIBDatabase);
184		procedure SetSQL(Value: TStrings);
185		procedure SetTransaction(Value: TIBTransaction);
186		procedure SQLChanging(Sender: TObject);
187	<	procedure BeforeTransactionEnd(Sender: TObject);
187	>	procedure SQLChanged(Sender: TObject);
188	>	procedure BeforeTransactionEnd(Sender: TObject; Action: TTransactionAction);
189		public
190		constructor Create(AOwner: TComponent); override;
191		destructor Destroy; override;
192		procedure BatchInput(InputObject: TIBBatchInput);
193		procedure BatchOutput(OutputObject: TIBBatchOutput);
289	–	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;
294	–	function Current: TIBXSQLDA;
198		procedure ExecQuery;
199	<	function FieldByName(FieldName: 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;
302	–	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 Open: Boolean read FOpen;
212	<	property Params: TIBXSQLDA read GetSQLParams;
211	>	property FieldCount: integer read GetFieldCount;
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;
313	<	property TRHandle: PISC_TR_HANDLE read GetTRHandle;
314	<	property Handle: TISC_STMT_HANDLE read FHandle;
315	<	property GenerateParamNames: Boolean read FGenerateParamNames write FGenerateParamNames;
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;
225	+	property UniqueParamNames: Boolean read FUniqueParamNames write SetUniqueParamNames;
226		property GoToFirstRecordOnExecute: Boolean read FGoToFirstRecordOnExecute
227		write FGoToFirstRecordOnExecute
228		default True;
#	Line 323 | Line 230 | type
230		property SQL: TStrings read FSQL write SetSQL;
231		property Transaction: TIBTransaction read GetTransaction write SetTransaction;
232		property OnSQLChanging: TNotifyEvent read FOnSQLChanging write FOnSQLChanging;
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, IBSQLMonitor;
332	<
333	<	{ TIBXSQLVAR }
334	<	constructor TIBXSQLVAR.Create(Parent: TIBXSQLDA; Query: TIBSQL);
335	<	begin
336	<	inherited Create;
337	<	FParent := Parent;
338	<	FSQL := Query;
339	<	end;
340	<
341	<	procedure TIBXSQLVAR.Assign(Source: TIBXSQLVAR);
342	<	var
343	<	szBuff: PChar;
344	<	s_bhandle, d_bhandle: TISC_BLOB_HANDLE;
345	<	bSourceBlob, bDestBlob: Boolean;
346	<	iSegs, iMaxSeg, iSize: Long;
347	<	iBlobType: Short;
348	<	begin
349	<	szBuff := nil;
350	<	bSourceBlob := True;
351	<	bDestBlob := True;
352	<	s_bhandle := nil;
353	<	d_bhandle := nil;
354	<	try
355	<	if (Source.IsNull) then
356	<	begin
357	<	IsNull := True;
358	<	exit;
359	<	end
360	<	else
361	<	if (FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) or
362	<	(Source.FXSQLVAR^.sqltype and (not 1) = SQL_ARRAY) then
363	<	exit; { arrays not supported }
364	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
365	<	(Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
366	<	begin
367	<	AsXSQLVAR := Source.AsXSQLVAR;
368	<	exit;
369	<	end
370	<	else
371	<	if (Source.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
372	<	begin
373	<	szBuff := nil;
374	<	IBAlloc(szBuff, 0, Source.FXSQLVAR^.sqllen);
375	<	Move(Source.FXSQLVAR^.sqldata[0], szBuff[0], Source.FXSQLVAR^.sqllen);
376	<	bSourceBlob := False;
377	<	iSize := Source.FXSQLVAR^.sqllen;
378	<	end
379	<	else
380	<	if (FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) then
381	<	bDestBlob := False;
382	<
383	<	if bSourceBlob then
384	<	begin
385	<	{ read the blob }
386	<	Source.FSQL.Call(isc_open_blob2(StatusVector, Source.FSQL.DBHandle,
387	<	Source.FSQL.TRHandle, @s_bhandle, PISC_QUAD(Source.FXSQLVAR.sqldata),
388	<	0, nil), True);
389	<	try
390	<	IBBlob.GetBlobInfo(@s_bhandle, iSegs, iMaxSeg, iSize,
391	<	iBlobType);
392	<	szBuff := nil;
393	<	IBAlloc(szBuff, 0, iSize);
394	<	IBBlob.ReadBlob(@s_bhandle, szBuff, iSize);
395	<	finally
396	<	Source.FSQL.Call(isc_close_blob(StatusVector, @s_bhandle), True);
397	<	end;
398	<	end;
399	<
400	<	if bDestBlob then
401	<	begin
402	<	{ write the blob }
403	<	FSQL.Call(isc_create_blob2(StatusVector, FSQL.DBHandle,
404	<	FSQL.TRHandle, @d_bhandle, PISC_QUAD(FXSQLVAR.sqldata),
405	<	0, nil), True);
406	<	try
407	<	IBBlob.WriteBlob(@d_bhandle, szBuff, iSize);
408	<	finally
409	<	FSQL.Call(isc_close_blob(StatusVector, @d_bhandle), True);
410	<	end;
411	<	end
412	<	else
413	<	begin
414	<	{ just copy the buffer }
415	<	FXSQLVAR.sqltype := SQL_TEXT;
416	<	FXSQLVAR.sqllen := iSize;
417	<	IBAlloc(FXSQLVAR.sqldata, iSize, iSize);
418	<	Move(szBuff[0], FXSQLVAR^.sqldata[0], iSize);
419	<	end;
420	<	finally
421	<	FreeMem(szBuff);
422	<	end;
423	<	end;
424	<
425	<	function TIBXSQLVAR.AdjustScale(Value: Int64; Scale: Integer): Double;
426	<	var
427	<	Scaling, i: Integer;
428	<	Val: Double;
429	<	begin
430	<	Scaling := 1; Val := Value;
431	<	if Scale > 0 then
432	<	begin
433	<	for i := 1 to Scale do
434	<	Scaling := Scaling * 10;
435	<	result := Val * Scaling;
436	<	end
437	<	else
438	<	if Scale < 0 then
439	<	begin
440	<	for i := -1 downto Scale do
441	<	Scaling := Scaling * 10;
442	<	result := Val / Scaling;
443	<	end
444	<	else
445	<	result := Val;
446	<	end;
447	<
448	<	function TIBXSQLVAR.AdjustScaleToInt64(Value: Int64; Scale: Integer): Int64;
449	<	var
450	<	Scaling, i: Integer;
451	<	Val: Int64;
452	<	begin
453	<	Scaling := 1; Val := Value;
454	<	if Scale > 0 then begin
455	<	for i := 1 to Scale do Scaling := Scaling * 10;
456	<	result := Val * Scaling;
457	<	end else if Scale < 0 then begin
458	<	for i := -1 downto Scale do Scaling := Scaling * 10;
459	<	result := Val div Scaling;
460	<	end else
461	<	result := Val;
462	<	end;
463	<
464	<	function TIBXSQLVAR.AdjustScaleToCurrency(Value: Int64; Scale: Integer): Currency;
465	<	var
466	<	Scaling, i : Integer;
467	<	FractionText, PadText, CurrText: string;
468	<	begin
469	<	result := Value;
470	<	Scaling := 1;
471	<	if Scale > 0 then
472	<	begin
473	<	for i := 1 to Scale do
474	<	Scaling := Scaling * 10;
475	<	result := Value * Scaling;
476	<	end
477	<	else
478	<	if Scale < 0 then
479	<	begin
480	<	for i := -1 downto Scale do
481	<	Scaling := Scaling * 10;
482	<	FractionText := IntToStr(abs(Value mod Scaling));
483	<	for i := Length(FractionText) to -Scale -1 do
484	<	PadText := '0' + PadText;
485	<	if Value < 0 then
486	<	CurrText := '-' + IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText
487	<	else
488	<	CurrText := IntToStr(Abs(Value div Scaling)) + DecimalSeparator + PadText + FractionText;
489	<	try
490	<	result := StrToCurr(CurrText);
491	<	except
492	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
493	<	end;
494	<	end;
495	<	end;
496	<
497	<	function TIBXSQLVAR.GetAsCurrency: Currency;
498	<	begin
499	<	result := 0;
500	<	if FSQL.Database.SQLDialect < 3 then
501	<	result := GetAsDouble
502	<	else begin
503	<	if not IsNull then
504	<	case FXSQLVAR^.sqltype and (not 1) of
505	<	SQL_TEXT, SQL_VARYING: begin
506	<	try
507	<	result := StrtoCurr(AsString);
508	<	except
509	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
510	<	end;
511	<	end;
512	<	SQL_SHORT:
513	<	result := AdjustScaleToCurrency(Int64(PShort(FXSQLVAR^.sqldata)^),
514	<	FXSQLVAR^.sqlscale);
515	<	SQL_LONG:
516	<	result := AdjustScaleToCurrency(Int64(PLong(FXSQLVAR^.sqldata)^),
517	<	FXSQLVAR^.sqlscale);
518	<	SQL_INT64:
519	<	result := AdjustScaleToCurrency(PInt64(FXSQLVAR^.sqldata)^,
520	<	FXSQLVAR^.sqlscale);
521	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
522	<	result := Trunc(AsDouble);
523	<	else
524	<	IBError(ibxeInvalidDataConversion, [nil]);
525	<	end;
526	<	end;
527	<	end;
528	<
529	<	function TIBXSQLVAR.GetAsInt64: Int64;
530	<	begin
531	<	result := 0;
532	<	if not IsNull then
533	<	case FXSQLVAR^.sqltype and (not 1) of
534	<	SQL_TEXT, SQL_VARYING: begin
535	<	try
536	<	result := StrToInt64(AsString);
537	<	except
538	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
539	<	end;
540	<	end;
541	<	SQL_SHORT:
542	<	result := AdjustScaleToInt64(Int64(PShort(FXSQLVAR^.sqldata)^),
543	<	FXSQLVAR^.sqlscale);
544	<	SQL_LONG:
545	<	result := AdjustScaleToInt64(Int64(PLong(FXSQLVAR^.sqldata)^),
546	<	FXSQLVAR^.sqlscale);
547	<	SQL_INT64:
548	<	result := AdjustScaleToInt64(PInt64(FXSQLVAR^.sqldata)^,
549	<	FXSQLVAR^.sqlscale);
550	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
551	<	result := Trunc(AsDouble);
552	<	else
553	<	IBError(ibxeInvalidDataConversion, [nil]);
554	<	end;
555	<	end;
556	<
557	<	function TIBXSQLVAR.GetAsDateTime: TDateTime;
558	<	var
559	<	tm_date: TCTimeStructure;
560	<	begin
561	<	result := 0;
562	<	if not IsNull then
563	<	case FXSQLVAR^.sqltype and (not 1) of
564	<	SQL_TEXT, SQL_VARYING: begin
565	<	try
566	<	result := StrToDate(AsString);
567	<	except
568	<	on E: EConvertError do IBError(ibxeInvalidDataConversion, [nil]);
569	<	end;
570	<	end;
571	<	SQL_TYPE_DATE: begin
572	<	isc_decode_sql_date(PISC_DATE(FXSQLVAR^.sqldata), @tm_date);
573	<	try
574	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
575	<	Word(tm_date.tm_mday));
576	<	except
577	<	on E: EConvertError do begin
578	<	IBError(ibxeInvalidDataConversion, [nil]);
579	<	end;
580	<	end;
581	<	end;
582	<	SQL_TYPE_TIME: begin
583	<	isc_decode_sql_time(PISC_TIME(FXSQLVAR^.sqldata), @tm_date);
584	<	try
585	<	result := EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
586	<	Word(tm_date.tm_sec), 0)
587	<	except
588	<	on E: EConvertError do begin
589	<	IBError(ibxeInvalidDataConversion, [nil]);
590	<	end;
591	<	end;
592	<	end;
593	<	SQL_TIMESTAMP: begin
594	<	isc_decode_date(PISC_QUAD(FXSQLVAR^.sqldata), @tm_date);
595	<	try
596	<	result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
597	<	Word(tm_date.tm_mday));
598	<	if result >= 0 then
599	<	result := result + EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
600	<	Word(tm_date.tm_sec), 0)
601	<	else
602	<	result := result - EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
603	<	Word(tm_date.tm_sec), 0)
604	<	except
605	<	on E: EConvertError do begin
606	<	IBError(ibxeInvalidDataConversion, [nil]);
607	<	end;
608	<	end;
609	<	end;
610	<	else
611	<	IBError(ibxeInvalidDataConversion, [nil]);
612	<	end;
613	<	end;
614	<
615	<	function TIBXSQLVAR.GetAsDouble: Double;
616	<	begin
617	<	result := 0;
618	<	if not IsNull then begin
619	<	case FXSQLVAR^.sqltype and (not 1) of
620	<	SQL_TEXT, SQL_VARYING: begin
621	<	try
622	<	result := StrToFloat(AsString);
623	<	except
624	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
625	<	end;
626	<	end;
627	<	SQL_SHORT:
628	<	result := AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
629	<	FXSQLVAR^.sqlscale);
630	<	SQL_LONG:
631	<	result := AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
632	<	FXSQLVAR^.sqlscale);
633	<	SQL_INT64:
634	<	result := AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale);
635	<	SQL_FLOAT:
636	<	result := PFloat(FXSQLVAR^.sqldata)^;
637	<	SQL_DOUBLE, SQL_D_FLOAT:
638	<	result := PDouble(FXSQLVAR^.sqldata)^;
639	<	else
640	<	IBError(ibxeInvalidDataConversion, [nil]);
641	<	end;
642	<	if  FXSQLVAR^.sqlscale <> 0 then
643	<	result :=
644	<	StrToFloat(FloatToStrF(result, fffixed, 15,
645	<	Abs(FXSQLVAR^.sqlscale) ));
646	<	end;
647	<	end;
648	<
649	<	function TIBXSQLVAR.GetAsFloat: Float;
650	<	begin
651	<	result := 0;
652	<	try
653	<	result := AsDouble;
654	<	except
655	<	on E: EOverflow do
656	<	IBError(ibxeInvalidDataConversion, [nil]);
657	<	end;
658	<	end;
659	<
660	<	function TIBXSQLVAR.GetAsLong: Long;
661	<	begin
662	<	result := 0;
663	<	if not IsNull then
664	<	case FXSQLVAR^.sqltype and (not 1) of
665	<	SQL_TEXT, SQL_VARYING: begin
666	<	try
667	<	result := StrToInt(AsString);
668	<	except
669	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
670	<	end;
671	<	end;
672	<	SQL_SHORT:
673	<	result := Trunc(AdjustScale(Int64(PShort(FXSQLVAR^.sqldata)^),
674	<	FXSQLVAR^.sqlscale));
675	<	SQL_LONG:
676	<	result := Trunc(AdjustScale(Int64(PLong(FXSQLVAR^.sqldata)^),
677	<	FXSQLVAR^.sqlscale));
678	<	SQL_INT64:
679	<	result := Trunc(AdjustScale(PInt64(FXSQLVAR^.sqldata)^, FXSQLVAR^.sqlscale));
680	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
681	<	result := Trunc(AsDouble);
682	<	else
683	<	IBError(ibxeInvalidDataConversion, [nil]);
684	<	end;
685	<	end;
686	<
687	<	function TIBXSQLVAR.GetAsPointer: Pointer;
688	<	begin
689	<	if not IsNull then
690	<	result := FXSQLVAR^.sqldata
691	<	else
692	<	result := nil;
693	<	end;
694	<
695	<	function TIBXSQLVAR.GetAsQuad: TISC_QUAD;
696	<	begin
697	<	result.gds_quad_high := 0;
698	<	result.gds_quad_low := 0;
699	<	if not IsNull then
700	<	case FXSQLVAR^.sqltype and (not 1) of
701	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD:
702	<	result := PISC_QUAD(FXSQLVAR^.sqldata)^;
703	<	else
704	<	IBError(ibxeInvalidDataConversion, [nil]);
705	<	end;
706	<	end;
707	<
708	<	function TIBXSQLVAR.GetAsShort: Short;
709	<	begin
710	<	result := 0;
711	<	try
712	<	result := AsLong;
713	<	except
714	<	on E: Exception do IBError(ibxeInvalidDataConversion, [nil]);
715	<	end;
716	<	end;
717	<
718	<
719	<	function TIBXSQLVAR.GetAsString: String;
720	<	var
721	<	sz: PChar;
722	<	str_len: Integer;
723	<	ss: TStringStream;
724	<	begin
725	<	result := '';
726	<	{ Check null, if so return a default string }
727	<	if not IsNull then
728	<	case FXSQLVar^.sqltype and (not 1) of
729	<	SQL_ARRAY:
730	<	result := '(Array)'; {do not localize}
731	<	SQL_BLOB: begin
732	<	ss := TStringStream.Create('');
733	<	SaveToStream(ss);
734	<	result := ss.DataString;
735	<	ss.Free;
736	<	end;
737	<	SQL_TEXT, SQL_VARYING: begin
738	<	sz := FXSQLVAR^.sqldata;
739	<	if (FXSQLVar^.sqltype and (not 1) = SQL_TEXT) then
740	<	str_len := FXSQLVar^.sqllen
741	<	else begin
742	<	str_len := isc_vax_integer(FXSQLVar^.sqldata, 2);
743	<	Inc(sz, 2);
744	<	end;
745	<	SetString(result, sz, str_len);
746	<	if ((FXSQLVar^.sqltype and (not 1)) = SQL_TEXT) then
747	<	result := TrimRight(result);
748	<	end;
749	<	SQL_TYPE_DATE:
750	<	case FSQL.Database.SQLDialect of
751	<	1 : result := DateTimeToStr(AsDateTime);
752	<	3 : result := DateToStr(AsDateTime);
753	<	end;
754	<	SQL_TYPE_TIME :
755	<	result := TimeToStr(AsDateTime);
756	<	SQL_TIMESTAMP:
757	<	result := DateTimeToStr(AsDateTime);
758	<	SQL_SHORT, SQL_LONG:
759	<	if FXSQLVAR^.sqlscale = 0 then
760	<	result := IntToStr(AsLong)
761	<	else if FXSQLVAR^.sqlscale >= (-4) then
762	<	result := CurrToStr(AsCurrency)
763	<	else
764	<	result := FloatToStr(AsDouble);
765	<	SQL_INT64:
766	<	if FXSQLVAR^.sqlscale = 0 then
767	<	result := IntToStr(AsInt64)
768	<	else if FXSQLVAR^.sqlscale >= (-4) then
769	<	result := CurrToStr(AsCurrency)
770	<	else
771	<	result := FloatToStr(AsDouble);
772	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
773	<	result := FloatToStr(AsDouble);
774	<	else
775	<	IBError(ibxeInvalidDataConversion, [nil]);
776	<	end;
777	<	end;
778	<
779	<	function TIBXSQLVAR.GetAsVariant: Variant;
780	<	begin
781	<	if IsNull then
782	<	result := NULL
783	<	{ Check null, if so return a default string }
784	<	else case FXSQLVar^.sqltype and (not 1) of
785	<	SQL_ARRAY:
786	<	result := '(Array)'; {do not localize}
787	<	SQL_BLOB:
788	<	result := '(Blob)'; {do not localize}
789	<	SQL_TEXT, SQL_VARYING:
790	<	result := AsString;
791	<	SQL_TIMESTAMP, SQL_TYPE_DATE, SQL_TYPE_TIME:
792	<	result := AsDateTime;
793	<	SQL_SHORT, SQL_LONG:
794	<	if FXSQLVAR^.sqlscale = 0 then
795	<	result := AsLong
796	<	else if FXSQLVAR^.sqlscale >= (-4) then
797	<	result := AsCurrency
798	<	else
799	<	result := AsDouble;
800	<	SQL_INT64:
801	<	if FXSQLVAR^.sqlscale = 0 then
802	<	IBError(ibxeInvalidDataConversion, [nil])
803	<	else if FXSQLVAR^.sqlscale >= (-4) then
804	<	result := AsCurrency
805	<	else
806	<	result := AsDouble;
807	<	SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
808	<	result := AsDouble;
809	<	else
810	<	IBError(ibxeInvalidDataConversion, [nil]);
811	<	end;
812	<	end;
813	<
814	<	function TIBXSQLVAR.GetAsXSQLVAR: PXSQLVAR;
815	<	begin
816	<	result := FXSQLVAR;
817	<	end;
818	<
819	<	function TIBXSQLVAR.GetIsNull: Boolean;
820	<	begin
821	<	result := IsNullable and (FXSQLVAR^.sqlind^ = -1);
822	<	end;
823	<
824	<	function TIBXSQLVAR.GetIsNullable: Boolean;
825	<	begin
826	<	result := (FXSQLVAR^.sqltype and 1 = 1);
827	<	end;
828	<
829	<	procedure TIBXSQLVAR.LoadFromFile(const FileName: String);
830	<	var
831	<	fs: TFileStream;
832	<	begin
833	<	fs := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
834	<	try
835	<	LoadFromStream(fs);
836	<	finally
837	<	fs.Free;
838	<	end;
839	<	end;
840	<
841	<	procedure TIBXSQLVAR.LoadFromStream(Stream: TStream);
842	<	var
843	<	bs: TIBBlobStream;
844	<	begin
845	<	bs := TIBBlobStream.Create;
846	<	try
847	<	bs.Mode := bmWrite;
848	<	bs.Database := FSQL.Database;
849	<	bs.Transaction := FSQL.Transaction;
850	<	Stream.Seek(0, soFromBeginning);
851	<	bs.LoadFromStream(Stream);
852	<	bs.Finalize;
853	<	AsQuad := bs.BlobID;
854	<	finally
855	<	bs.Free;
856	<	end;
857	<	end;
858	<
859	<	procedure TIBXSQLVAR.SaveToFile(const FileName: String);
860	<	var
861	<	fs: TFileStream;
862	<	begin
863	<	fs := TFileStream.Create(FileName, fmCreate or fmShareExclusive);
864	<	try
865	<	SaveToStream(fs);
866	<	finally
867	<	fs.Free;
868	<	end;
869	<	end;
870	<
871	<	procedure TIBXSQLVAR.SaveToStream(Stream: TStream);
872	<	var
873	<	bs: TIBBlobStream;
874	<	begin
875	<	bs := TIBBlobStream.Create;
876	<	try
877	<	bs.Mode := bmRead;
878	<	bs.Database := FSQL.Database;
879	<	bs.Transaction := FSQL.Transaction;
880	<	bs.BlobID := AsQuad;
881	<	bs.SaveToStream(Stream);
882	<	finally
883	<	bs.Free;
884	<	end;
885	<	end;
886	<
887	<	function TIBXSQLVAR.GetSize: Integer;
888	<	begin
889	<	result := FXSQLVAR^.sqllen;
890	<	end;
891	<
892	<	function TIBXSQLVAR.GetSQLType: Integer;
893	<	begin
894	<	result := FXSQLVAR^.sqltype and (not 1);
895	<	end;
896	<
897	<	procedure TIBXSQLVAR.SetAsCurrency(Value: Currency);
898	<	var
899	<	xvar: TIBXSQLVAR;
900	<	i: Integer;
901	<	begin
902	<	if FSQL.Database.SQLDialect < 3 then
903	<	AsDouble := Value
904	<	else
905	<	begin
906	<	if IsNullable then
907	<	IsNull := False;
908	<	for i := 0 to FParent.FCount - 1 do
909	<	if FParent.FNames[i] = FName then
910	<	begin
911	<	xvar := FParent[i];
912	<	xvar.FXSQLVAR^.sqltype := SQL_INT64 or (xvar.FXSQLVAR^.sqltype and 1);
913	<	xvar.FXSQLVAR^.sqlscale := -4;
914	<	xvar.FXSQLVAR^.sqllen := SizeOf(Int64);
915	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
916	<	PCurrency(xvar.FXSQLVAR^.sqldata)^ := Value;
917	<	xvar.FModified := True;
918	<	end;
919	<	end;
920	<	end;
921	<
922	<	procedure TIBXSQLVAR.SetAsInt64(Value: Int64);
923	<	var
924	<	i: Integer;
925	<	xvar: TIBXSQLVAR;
926	<	begin
927	<	if IsNullable then
928	<	IsNull := False;
929	<	for i := 0 to FParent.FCount - 1 do
930	<	if FParent.FNames[i] = FName then
931	<	begin
932	<	xvar := FParent[i];
933	<	xvar.FXSQLVAR^.sqltype := SQL_INT64 or (xvar.FXSQLVAR^.sqltype and 1);
934	<	xvar.FXSQLVAR^.sqlscale := 0;
935	<	xvar.FXSQLVAR^.sqllen := SizeOf(Int64);
936	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
937	<	PInt64(xvar.FXSQLVAR^.sqldata)^ := Value;
938	<	xvar.FModified := True;
939	<	end;
940	<	end;
941	<
942	<	procedure TIBXSQLVAR.SetAsDate(Value: TDateTime);
943	<	var
944	<	i: Integer;
945	<	tm_date: TCTimeStructure;
946	<	Yr, Mn, Dy: Word;
947	<	xvar: TIBXSQLVAR;
948	<	begin
949	<	if FSQL.Database.SQLDialect < 3 then
950	<	begin
951	<	AsDateTime := Value;
952	<	exit;
953	<	end;
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_TYPE_DATE or (xvar.FXSQLVAR^.sqltype and 1);
961	<	DecodeDate(Value, Yr, Mn, Dy);
962	<	with tm_date do begin
963	<	tm_sec := 0;
964	<	tm_min := 0;
965	<	tm_hour := 0;
966	<	tm_mday := Dy;
967	<	tm_mon := Mn - 1;
968	<	tm_year := Yr - 1900;
969	<	end;
970	<	xvar.FXSQLVAR^.sqllen := SizeOf(ISC_DATE);
971	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
972	<	isc_encode_sql_date(@tm_date, PISC_DATE(xvar.FXSQLVAR^.sqldata));
973	<	xvar.FModified := True;
974	<	end;
975	<	end;
976	<
977	<	procedure TIBXSQLVAR.SetAsTime(Value: TDateTime);
978	<	var
979	<	i: Integer;
980	<	tm_date: TCTimeStructure;
981	<	Hr, Mt, S, Ms: Word;
982	<	xvar: TIBXSQLVAR;
983	<	begin
984	<	if FSQL.Database.SQLDialect < 3 then
985	<	begin
986	<	AsDateTime := Value;
987	<	exit;
988	<	end;
989	<	if IsNullable then
990	<	IsNull := False;
991	<	for i := 0 to FParent.FCount - 1 do
992	<	if FParent.FNames[i] = FName then
993	<	begin
994	<	xvar := FParent[i];
995	<	xvar.FXSQLVAR^.sqltype := SQL_TYPE_TIME or (xvar.FXSQLVAR^.sqltype and 1);
996	<	DecodeTime(Value, Hr, Mt, S, Ms);
997	<	with tm_date do begin
998	<	tm_sec := S;
999	<	tm_min := Mt;
1000	<	tm_hour := Hr;
1001	<	tm_mday := 0;
1002	<	tm_mon := 0;
1003	<	tm_year := 0;
1004	<	end;
1005	<	xvar.FXSQLVAR^.sqllen := SizeOf(ISC_TIME);
1006	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1007	<	isc_encode_sql_time(@tm_date, PISC_TIME(xvar.FXSQLVAR^.sqldata));
1008	<	xvar.FModified := True;
1009	<	end;
1010	<	end;
1011	<
1012	<	procedure TIBXSQLVAR.SetAsDateTime(Value: TDateTime);
1013	<	var
1014	<	i: Integer;
1015	<	tm_date: TCTimeStructure;
1016	<	Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
1017	<	xvar: TIBXSQLVAR;
1018	<	begin
1019	<	if IsNullable then
1020	<	IsNull := False;
1021	<	for i := 0 to FParent.FCount - 1 do
1022	<	if FParent.FNames[i] = FName then
1023	<	begin
1024	<	xvar := FParent[i];
1025	<	xvar.FXSQLVAR^.sqltype := SQL_TIMESTAMP or (xvar.FXSQLVAR^.sqltype and 1);
1026	<	DecodeDate(Value, Yr, Mn, Dy);
1027	<	DecodeTime(Value, Hr, Mt, S, Ms);
1028	<	with tm_date do begin
1029	<	tm_sec := S;
1030	<	tm_min := Mt;
1031	<	tm_hour := Hr;
1032	<	tm_mday := Dy;
1033	<	tm_mon := Mn - 1;
1034	<	tm_year := Yr - 1900;
1035	<	end;
1036	<	xvar.FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1037	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1038	<	isc_encode_date(@tm_date, PISC_QUAD(xvar.FXSQLVAR^.sqldata));
1039	<	xvar.FModified := True;
1040	<	end;
1041	<	end;
1042	<
1043	<	procedure TIBXSQLVAR.SetAsDouble(Value: Double);
1044	<	var
1045	<	i: Integer;
1046	<	xvar: TIBXSQLVAR;
1047	<	begin
1048	<	if IsNullable then
1049	<	IsNull := False;
1050	<	for i := 0 to FParent.FCount - 1 do
1051	<	if FParent.FNames[i] = FName then
1052	<	begin
1053	<	xvar := FParent[i];
1054	<	xvar.FXSQLVAR^.sqltype := SQL_DOUBLE or (xvar.FXSQLVAR^.sqltype and 1);
1055	<	xvar.FXSQLVAR^.sqllen := SizeOf(Double);
1056	<	xvar.FXSQLVAR^.sqlscale := 0;
1057	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1058	<	PDouble(xvar.FXSQLVAR^.sqldata)^ := Value;
1059	<	xvar.FModified := True;
1060	<	end;
1061	<	end;
1062	<
1063	<	procedure TIBXSQLVAR.SetAsFloat(Value: Float);
1064	<	var
1065	<	i: Integer;
1066	<	xvar: TIBXSQLVAR;
1067	<	begin
1068	<	if IsNullable then
1069	<	IsNull := False;
1070	<	for i := 0 to FParent.FCount - 1 do
1071	<	if FParent.FNames[i] = FName then
1072	<	begin
1073	<	xvar := FParent[i];
1074	<	xvar.FXSQLVAR^.sqltype := SQL_FLOAT or (xvar.FXSQLVAR^.sqltype and 1);
1075	<	xvar.FXSQLVAR^.sqllen := SizeOf(Float);
1076	<	xvar.FXSQLVAR^.sqlscale := 0;
1077	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1078	<	PSingle(xvar.FXSQLVAR^.sqldata)^ := Value;
1079	<	xvar.FModified := True;
1080	<	end;
1081	<	end;
1082	<
1083	<	procedure TIBXSQLVAR.SetAsLong(Value: Long);
1084	<	var
1085	<	i: Integer;
1086	<	xvar: TIBXSQLVAR;
1087	<	begin
1088	<	if IsNullable then
1089	<	IsNull := False;
1090	<	for i := 0 to FParent.FCount - 1 do
1091	<	if FParent.FNames[i] = FName then
1092	<	begin
1093	<	xvar := FParent[i];
1094	<	xvar.FXSQLVAR^.sqltype := SQL_LONG or (xvar.FXSQLVAR^.sqltype and 1);
1095	<	xvar.FXSQLVAR^.sqllen := SizeOf(Long);
1096	<	xvar.FXSQLVAR^.sqlscale := 0;
1097	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1098	<	PLong(xvar.FXSQLVAR^.sqldata)^ := Value;
1099	<	xvar.FModified := True;
1100	<	end;
1101	<	end;
241	>	Variants, IBSQLMonitor, FBMessages, IBCustomDataSet;
242
243	<	procedure TIBXSQLVAR.SetAsPointer(Value: Pointer);
243	>	procedure IBAlloc(var P; OldSize, NewSize: Integer);
244		var
245		i: Integer;
1106	–	xvar: TIBXSQLVAR;
246		begin
247	<	if IsNullable and (Value = nil) then
248	<	IsNull := True
1110	<	else begin
1111	<	IsNull := False;
1112	<	for i := 0 to FParent.FCount - 1 do
1113	<	if FParent.FNames[i] = FName then
1114	<	begin
1115	<	xvar := FParent[i];
1116	<	xvar.FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1117	<	Move(Value^, xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen);
1118	<	xvar.FModified := True;
1119	<	end;
1120	<	end;
1121	<	end;
1122	<
1123	<	procedure TIBXSQLVAR.SetAsQuad(Value: TISC_QUAD);
1124	<	var
1125	<	i: Integer;
1126	<	xvar: TIBXSQLVAR;
1127	<	begin
1128	<	if IsNullable then
1129	<	IsNull := False;
1130	<	for i := 0 to FParent.FCount - 1 do
1131	<	if FParent.FNames[i] = FName then
1132	<	begin
1133	<	xvar := FParent[i];
1134	<	if (xvar.FXSQLVAR^.sqltype and (not 1) <> SQL_BLOB) and
1135	<	(xvar.FXSQLVAR^.sqltype and (not 1) <> SQL_ARRAY) then
1136	<	IBError(ibxeInvalidDataConversion, [nil]);
1137	<	xvar.FXSQLVAR^.sqllen := SizeOf(TISC_QUAD);
1138	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1139	<	PISC_QUAD(xvar.FXSQLVAR^.sqldata)^ := Value;
1140	<	xvar.FModified := True;
1141	<	end;
1142	<	end;
1143	<
1144	<	procedure TIBXSQLVAR.SetAsShort(Value: Short);
1145	<	var
1146	<	i: Integer;
1147	<	xvar: TIBXSQLVAR;
1148	<	begin
1149	<	if IsNullable then
1150	<	IsNull := False;
1151	<	for i := 0 to FParent.FCount - 1 do
1152	<	if FParent.FNames[i] = FName then
1153	<	begin
1154	<	xvar := FParent[i];
1155	<	xvar.FXSQLVAR^.sqltype := SQL_SHORT or (xvar.FXSQLVAR^.sqltype and 1);
1156	<	xvar.FXSQLVAR^.sqllen := SizeOf(Short);
1157	<	xvar.FXSQLVAR^.sqlscale := 0;
1158	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen);
1159	<	PShort(xvar.FXSQLVAR^.sqldata)^ := Value;
1160	<	xvar.FModified := True;
1161	<	end;
1162	<	end;
1163	<
1164	<	procedure TIBXSQLVAR.SetAsString(Value: String);
1165	<	var
1166	<	stype: Integer;
1167	<	ss: TStringStream;
1168	<
1169	<	procedure SetStringValue;
1170	<	var
1171	<	i: Integer;
1172	<	xvar: TIBXSQLVAR;
1173	<	begin
1174	<	for i := 0 to FParent.FCount - 1 do
1175	<	if FParent.FNames[i] = FName then
1176	<	begin
1177	<	xvar := FParent[i];
1178	<	if (xvar.FXSQLVAR^.sqlname = 'DB_KEY') or {do not localize}
1179	<	(xvar.FXSQLVAR^.sqlname = 'RDB$DB_KEY') then {do not localize}
1180	<	Move(Value[1], xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen)
1181	<	else begin
1182	<	xvar.FXSQLVAR^.sqltype := SQL_TEXT or (FXSQLVAR^.sqltype and 1);
1183	<	xvar.FXSQLVAR^.sqllen := Length(Value);
1184	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, xvar.FXSQLVAR^.sqllen + 1);
1185	<	if (Length(Value) > 0) then
1186	<	Move(Value[1], xvar.FXSQLVAR^.sqldata^, xvar.FXSQLVAR^.sqllen);
1187	<	end;
1188	<	xvar.FModified := True;
1189	<	end;
1190	<	end;
1191	<
1192	<	begin
1193	<	if IsNullable then
1194	<	IsNull := False;
1195	<	stype := FXSQLVAR^.sqltype and (not 1);
1196	<	if (stype = SQL_TEXT) or (stype = SQL_VARYING) then
1197	<	SetStringValue
1198	<	else begin
1199	<	if (stype = SQL_BLOB) then
1200	<	begin
1201	<	ss := TStringStream.Create(Value);
1202	<	try
1203	<	LoadFromStream(ss);
1204	<	finally
1205	<	ss.Free;
1206	<	end;
1207	<	end
1208	<	else if Value = '' then
1209	<	IsNull := True
1210	<	else if (stype = SQL_TIMESTAMP) or (stype = SQL_TYPE_DATE) or
1211	<	(stype = SQL_TYPE_TIME) then
1212	<	SetAsDateTime(StrToDateTime(Value))
1213	<	else
1214	<	SetStringValue;
1215	<	end;
1216	<	end;
1217	<
1218	<	procedure TIBXSQLVAR.SetAsVariant(Value: Variant);
1219	<	begin
1220	<	if VarIsNull(Value) then
1221	<	IsNull := True
1222	<	else case VarType(Value) of
1223	<	varEmpty, varNull:
1224	<	IsNull := True;
1225	<	varSmallint, varInteger, varByte:
1226	<	AsLong := Value;
1227	<	varSingle, varDouble:
1228	<	AsDouble := Value;
1229	<	varCurrency:
1230	<	AsCurrency := Value;
1231	<	varBoolean:
1232	<	if Value then
1233	<	AsLong := ISC_TRUE
1234	<	else
1235	<	AsLong := ISC_FALSE;
1236	<	varDate:
1237	<	AsDateTime := Value;
1238	<	varOleStr, varString:
1239	<	AsString := Value;
1240	<	varArray:
1241	<	IBError(ibxeNotSupported, [nil]);
1242	<	varByRef, varDispatch, varError, varUnknown, varVariant:
1243	<	IBError(ibxeNotPermitted, [nil]);
1244	<	end;
1245	<	end;
1246	<
1247	<	procedure TIBXSQLVAR.SetAsXSQLVAR(Value: PXSQLVAR);
1248	<	var
1249	<	i: Integer;
1250	<	xvar: TIBXSQLVAR;
1251	<	sqlind: PShort;
1252	<	sqldata: PChar;
1253	<	local_sqllen: Integer;
1254	<	begin
1255	<	for i := 0 to FParent.FCount - 1 do
1256	<	if FParent.FNames[i] = FName then
1257	<	begin
1258	<	xvar := FParent[i];
1259	<	sqlind := xvar.FXSQLVAR^.sqlind;
1260	<	sqldata := xvar.FXSQLVAR^.sqldata;
1261	<	Move(Value^, xvar.FXSQLVAR^, SizeOf(TXSQLVAR));
1262	<	xvar.FXSQLVAR^.sqlind := sqlind;
1263	<	xvar.FXSQLVAR^.sqldata := sqldata;
1264	<	if (Value^.sqltype and 1 = 1) then
1265	<	begin
1266	<	if (xvar.FXSQLVAR^.sqlind = nil) then
1267	<	IBAlloc(xvar.FXSQLVAR^.sqlind, 0, SizeOf(Short));
1268	<	xvar.FXSQLVAR^.sqlind^ := Value^.sqlind^;
1269	<	end
1270	<	else
1271	<	if (xvar.FXSQLVAR^.sqlind <> nil) then
1272	<	ReallocMem(xvar.FXSQLVAR^.sqlind, 0);
1273	<	if ((xvar.FXSQLVAR^.sqltype and (not 1)) = SQL_VARYING) then
1274	<	local_sqllen := xvar.FXSQLVAR^.sqllen + 2
1275	<	else
1276	<	local_sqllen := xvar.FXSQLVAR^.sqllen;
1277	<	FXSQLVAR^.sqlscale := Value^.sqlscale;
1278	<	IBAlloc(xvar.FXSQLVAR^.sqldata, 0, local_sqllen);
1279	<	Move(Value^.sqldata[0], xvar.FXSQLVAR^.sqldata[0], local_sqllen);
1280	<	xvar.FModified := True;
1281	<	end;
1282	<	end;
1283	<
1284	<	procedure TIBXSQLVAR.SetIsNull(Value: Boolean);
1285	<	var
1286	<	i: Integer;
1287	<	xvar: TIBXSQLVAR;
1288	<	begin
1289	<	if Value then
1290	<	begin
1291	<	if not IsNullable then
1292	<	IsNullable := True;
1293	<	for i := 0 to FParent.FCount - 1 do
1294	<	if FParent.FNames[i] = FName then
1295	<	begin
1296	<	xvar := FParent[i];
1297	<	xvar.FXSQLVAR^.sqlind^ := -1;
1298	<	xvar.FModified := True;
1299	<	end;
1300	<	end else if ((not Value) and IsNullable) then
1301	<	begin
1302	<	for i := 0 to FParent.FCount - 1 do
1303	<	if FParent.FNames[i] = FName then
1304	<	begin
1305	<	xvar := FParent[i];
1306	<	xvar.FXSQLVAR^.sqlind^ := 0;
1307	<	xvar.FModified := True;
1308	<	end;
1309	<	end;
1310	<	end;
1311	<
1312	<	procedure TIBXSQLVAR.SetIsNullable(Value: Boolean);
1313	<	var
1314	<	i: Integer;
1315	<	xvar: TIBXSQLVAR;
1316	<	begin
1317	<	for i := 0 to FParent.FCount - 1 do
1318	<	if FParent.FNames[i] = FName then
1319	<	begin
1320	<	xvar := FParent[i];
1321	<	if (Value <> IsNullable) then
1322	<	begin
1323	<	if Value then
1324	<	begin
1325	<	xvar.FXSQLVAR^.sqltype := xvar.FXSQLVAR^.sqltype or 1;
1326	<	IBAlloc(xvar.FXSQLVAR^.sqlind, 0, SizeOf(Short));
1327	<	end
1328	<	else
1329	<	begin
1330	<	xvar.FXSQLVAR^.sqltype := xvar.FXSQLVAR^.sqltype and (not 1);
1331	<	ReallocMem(xvar.FXSQLVAR^.sqlind, 0);
1332	<	end;
1333	<	end;
1334	<	end;
1335	<	end;
1336	<
1337	<	{ TIBXSQLDA }
1338	<	constructor TIBXSQLDA.Create(Query: TIBSQL);
1339	<	begin
1340	<	inherited Create;
1341	<	FSQL := Query;
1342	<	FNames := TStringList.Create;
1343	<	FSize := 0;
1344	<	FUniqueRelationName := '';
1345	<	end;
1346	<
1347	<	destructor TIBXSQLDA.Destroy;
1348	<	var
1349	<	i: Integer;
1350	<	begin
1351	<	FNames.Free;
1352	<	if FXSQLDA <> nil then
1353	<	begin
1354	<	for i := 0 to FSize - 1 do
1355	<	begin
1356	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqldata);
1357	<	FreeMem(FXSQLVARs[i].FXSQLVAR^.sqlind);
1358	<	FXSQLVARs[i].Free ;
1359	<	end;
1360	<	FreeMem(FXSQLDA);
1361	<	FXSQLDA := nil;
1362	<	FXSQLVARs := nil;
1363	<	end;
1364	<	inherited;
1365	<	end;
1366	<
1367	<	procedure TIBXSQLDA.AddName(FieldName: String; Idx: Integer);
1368	<	var
1369	<	fn: String;
1370	<	begin
1371	<	fn := FormatIdentifierValue(FSQL.Database.SQLDialect, FieldName);
1372	<	while FNames.Count <= Idx do
1373	<	FNames.Add('');
1374	<	FNames[Idx] := fn;
1375	<	FXSQLVARs[Idx].FName := fn;
1376	<	FXSQLVARs[Idx].FIndex := Idx;
1377	<	end;
1378	<
1379	<	function TIBXSQLDA.GetModified: Boolean;
1380	<	var
1381	<	i: Integer;
1382	<	begin
1383	<	result := False;
1384	<	for i := 0 to FCount - 1 do
1385	<	if FXSQLVARs[i].Modified then
1386	<	begin
1387	<	result := True;
1388	<	exit;
1389	<	end;
1390	<	end;
1391	<
1392	<	function TIBXSQLDA.GetNames: String;
1393	<	begin
1394	<	result := FNames.Text;
1395	<	end;
1396	<
1397	<	function TIBXSQLDA.GetRecordSize: Integer;
1398	<	begin
1399	<	result := SizeOf(TIBXSQLDA) + XSQLDA_LENGTH(FSize);
1400	<	end;
1401	<
1402	<	function TIBXSQLDA.GetXSQLDA: PXSQLDA;
1403	<	begin
1404	<	result := FXSQLDA;
1405	<	end;
1406	<
1407	<	function TIBXSQLDA.GetXSQLVAR(Idx: Integer): TIBXSQLVAR;
1408	<	begin
1409	<	if (Idx < 0) or (Idx >= FCount) then
1410	<	IBError(ibxeXSQLDAIndexOutOfRange, [nil]);
1411	<	result := FXSQLVARs[Idx]
1412	<	end;
1413	<
1414	<	function TIBXSQLDA.ByName(Idx: String): TIBXSQLVAR;
1415	<	begin
1416	<	result := GetXSQLVARByName(Idx);
1417	<	if result = nil then
1418	<	IBError(ibxeFieldNotFound, [Idx]);
1419	<	end;
1420	<
1421	<	function TIBXSQLDA.GetXSQLVARByName(Idx: String): TIBXSQLVAR;
1422	<	var
1423	<	s: String;
1424	<	i, Cnt: Integer;
1425	<	begin
1426	<	s := FormatIdentifierValue(FSQL.Database.SQLDialect, Idx);
1427	<	i := 0;
1428	<	Cnt := FNames.Count;
1429	<	while (i < Cnt) and (FNames[i] <> s) do Inc(i);
1430	<	if i = Cnt then
1431	<	result := nil
1432	<	else
1433	<	result := GetXSQLVAR(i);
1434	<	end;
1435	<
1436	<	procedure TIBXSQLDA.Initialize;
1437	<	var
1438	<	i, j, j_len: Integer;
1439	<	NamesWereEmpty: Boolean;
1440	<	st: String;
1441	<	bUnique: Boolean;
1442	<	begin
1443	<	bUnique := True;
1444	<	NamesWereEmpty := (FNames.Count = 0);
1445	<	if FXSQLDA <> nil then begin
1446	<	for i := 0 to FCount - 1 do begin
1447	<	with FXSQLVARs[i].Data^ do begin
1448	<	if bUnique and (String(relname) <> '') then
1449	<	begin
1450	<	if FUniqueRelationName = '' then
1451	<	FUniqueRelationName := String(relname)
1452	<	else if String(relname) <> FUniqueRelationName then
1453	<	begin
1454	<	FUniqueRelationName := '';
1455	<	bUnique := False;
1456	<	end;
1457	<	end;
1458	<	if NamesWereEmpty then begin
1459	<	st := String(aliasname);
1460	<	if st = '' then begin
1461	<	st := 'F_'; {do not localize}
1462	<	aliasname_length := 2;
1463	<	j := 1; j_len := 1;
1464	<	StrPCopy(aliasname, st + IntToStr(j));
1465	<	end else begin
1466	<	StrPCopy(aliasname, st);
1467	<	j := 0; j_len := 0;
1468	<	end;
1469	<	while GetXSQLVARByName(String(aliasname)) <> nil do begin
1470	<	Inc(j); j_len := Length(IntToStr(j));
1471	<	if j_len + aliasname_length > 31 then
1472	<	StrPCopy(aliasname,
1473	<	Copy(st, 1, 31 - j_len) +
1474	<	IntToStr(j))
1475	<	else
1476	<	StrPCopy(aliasname, st + IntToStr(j));
1477	<	end;
1478	<	Inc(aliasname_length, j_len);
1479	<	AddName(String(aliasname), i);
1480	<	end;
1481	<	case sqltype and (not 1) of
1482	<	SQL_TEXT, SQL_TYPE_DATE, SQL_TYPE_TIME, SQL_TIMESTAMP,
1483	<	SQL_BLOB, SQL_ARRAY, SQL_QUAD, SQL_SHORT,
1484	<	SQL_LONG, SQL_INT64, SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT: begin
1485	<	if (sqllen = 0) then
1486	<	{ Make sure you get a valid pointer anyway
1487	<	select '' from foo }
1488	<	IBAlloc(sqldata, 0, 1)
1489	<	else
1490	<	IBAlloc(sqldata, 0, sqllen)
1491	<	end;
1492	<	SQL_VARYING: begin
1493	<	IBAlloc(sqldata, 0, sqllen + 2);
1494	<	end;
1495	<	else
1496	<	IBError(ibxeUnknownSQLDataType, [sqltype and (not 1)])
1497	<	end;
1498	<	if (sqltype and 1 = 1) then
1499	<	IBAlloc(sqlind, 0, SizeOf(Short))
1500	<	else
1501	<	if (sqlind <> nil) then
1502	<	ReallocMem(sqlind, 0);
1503	<	end;
1504	<	end;
1505	<	end;
1506	<	end;
1507	<
1508	<	procedure TIBXSQLDA.SetCount(Value: Integer);
1509	<	var
1510	<	i, OldSize: Integer;
1511	<	p : PXSQLVAR;
1512	<	begin
1513	<	FNames.Clear;
1514	<	FCount := Value;
1515	<	if FCount = 0 then
1516	<	FUniqueRelationName := ''
1517	<	else
1518	<	begin
1519	<	if FSize > 0 then
1520	<	OldSize := XSQLDA_LENGTH(FSize)
1521	<	else
1522	<	OldSize := 0;
1523	<	if FCount > FSize then
1524	<	begin
1525	<	IBAlloc(FXSQLDA, OldSize, XSQLDA_LENGTH(FCount));
1526	<	SetLength(FXSQLVARs, FCount);
1527	<	FXSQLDA^.version := SQLDA_VERSION1;
1528	<	p := @FXSQLDA^.sqlvar[0];
1529	<	for i := 0 to FCount - 1 do
1530	<	begin
1531	<	if i >= FSize then
1532	<	FXSQLVARs[i] := TIBXSQLVAR.Create(self, FSQL);
1533	<	FXSQLVARs[i].FXSQLVAR := p;
1534	<	p := Pointer(PChar(p) + sizeof(FXSQLDA^.sqlvar));
1535	<	//        FNames.Add('');
1536	<	end;
1537	<	FSize := FCount;
1538	<	end;
1539	<	if FSize > 0 then
1540	<	begin
1541	<	FXSQLDA^.sqln := Value;
1542	<	FXSQLDA^.sqld := Value;
1543	<	end;
1544	<	end;
247	>	ReallocMem(Pointer(P), NewSize);
248	>	for i := OldSize to NewSize - 1 do PChar(P)[i] := #0;
249		end;
250
251		{ TIBOutputDelimitedFile }
252
253		destructor TIBOutputDelimitedFile.Destroy;
254		begin
255	+	{$IFDEF UNIX}
256	+	if FHandle <> -1 then
257	+	fpclose(FHandle);
258	+	{$ELSE}
259		if FHandle <> 0 then
260		begin
261		FlushFileBuffers(FHandle);
262		CloseHandle(FHandle);
263		end;
264	+	{$ENDIF}
265		inherited Destroy;
266		end;
267
268		procedure TIBOutputDelimitedFile.ReadyFile;
269		var
270		i: Integer;
271	+	{$IFDEF UNIX}
272	+	BytesWritten: cint;
273	+	{$ELSE}
274		BytesWritten: DWORD;
275	+	{$ENDIF}
276		st: string;
277		begin
278		if FColDelimiter = '' then
279		FColDelimiter := TAB;
280		if FRowDelimiter = '' then
281		FRowDelimiter := CRLF;
282	+	{$IFDEF UNIX}
283	+	FHandle := FpOpen(Filename,O_WrOnly or O_Creat);
284	+	{$ELSE}
285		FHandle := CreateFile(PChar(Filename), GENERIC_WRITE, 0, nil, CREATE_ALWAYS,
286		FILE_ATTRIBUTE_NORMAL, 0);
287		if FHandle = INVALID_HANDLE_VALUE then
288		FHandle := 0;
289	+	{$ENDIF}
290		if FOutputTitles then
291		begin
292		for i := 0 to Columns.Count - 1 do
293		if i = 0 then
294	<	st := string(Columns[i].Data^.aliasname)
294	>	st := Columns[i].GetAliasname
295		else
296	<	st := st + FColDelimiter + string(Columns[i].Data^.aliasname);
296	>	st := st + FColDelimiter + Columns[i].GetAliasname;
297		st := st + FRowDelimiter;
298	+	{$IFDEF UNIX}
299	+	if FHandle <> -1 then
300	+	BytesWritten := FpWrite(FHandle,st[1],Length(st));
301	+	if BytesWritten = -1 then
302	+	raise Exception.Create('File Write Error');
303	+	{$ELSE}
304		WriteFile(FHandle, st[1], Length(st), BytesWritten, nil);
305	+	{$ENDIF}
306		end;
307		end;
308
309		function TIBOutputDelimitedFile.WriteColumns: Boolean;
310		var
311		i: Integer;
312	+	{$IFDEF UNIX}
313	+	BytesWritten: cint;
314	+	{$ELSE}
315		BytesWritten: DWORD;
316	+	{$ENDIF}
317		st: string;
318		begin
319		result := False;
320	+	{$IFDEF UNIX}
321	+	if FHandle <> -1 then
322	+	{$ELSE}
323		if FHandle <> 0 then
324	+	{$ENDIF}
325		begin
326		st := '';
327		for i := 0 to Columns.Count - 1 do
#	Line 1599 | Line 331 | begin
331		st := st + StripString(Columns[i].AsString, FColDelimiter + FRowDelimiter);
332		end;
333		st := st + FRowDelimiter;
334	+	{$IFDEF UNIX}
335	+	BytesWritten := FpWrite(FHandle,st[1],Length(st));
336	+	{$ELSE}
337		WriteFile(FHandle, st[1], Length(st), BytesWritten, nil);
338	+	{$ENDIF}
339		if BytesWritten = DWORD(Length(st)) then
340		result := True;
341		end
#	Line 1712 | Line 448 | end;
448		{ TIBOutputRawFile }
449		destructor TIBOutputRawFile.Destroy;
450		begin
451	+	{$IFDEF UNIX}
452	+	if FHandle <> -1 then
453	+	fpclose(FHandle);
454	+	{$ELSE}
455		if FHandle <> 0 then
456		begin
457		FlushFileBuffers(FHandle);
458		CloseHandle(FHandle);
459		end;
460	+	{$ENDIF}
461		inherited Destroy;
462		end;
463
464		procedure TIBOutputRawFile.ReadyFile;
465		begin
466	+	{$IFDEF UNIX}
467	+	FHandle := FpOpen(Filename,O_WrOnly or O_Creat);
468	+	{$ELSE}
469		FHandle := CreateFile(PChar(Filename), GENERIC_WRITE, 0, nil, CREATE_ALWAYS,
470		FILE_ATTRIBUTE_NORMAL, 0);
471		if FHandle = INVALID_HANDLE_VALUE then
472		FHandle := 0;
473	+	{$ENDIF}
474		end;
475
476		function TIBOutputRawFile.WriteColumns: Boolean;
#	Line 1738 | Line 483 | begin
483		begin
484		for i := 0 to Columns.Count - 1 do
485		begin
486	<	WriteFile(FHandle, Columns[i].Data^.sqldata^, Columns[i].Data^.sqllen,
486	>	{$IFDEF UNIX}
487	>	BytesWritten := FpWrite(FHandle,Columns[i].GetAsPointer^, Columns[i].GetSize);
488	>	{$ELSE}
489	>	WriteFile(FHandle, Columns[i].GetAsPointer^, Columns[i].GetSize,
490		BytesWritten, nil);
491	<	if BytesWritten <> DWORD(Columns[i].Data^.sqllen) then
491	>	{$ENDIF}
492	>	if BytesWritten <> DWORD(Columns[i].GetSize) then
493		exit;
494		end;
495		result := True;
#	Line 1750 | Line 499 | end;
499		{ TIBInputRawFile }
500		destructor TIBInputRawFile.Destroy;
501		begin
502	+	{$IFDEF UNIX}
503	+	if FHandle <> -1 then
504	+	fpclose(FHandle);
505	+	{$ELSE}
506		if FHandle <> 0 then
507		CloseHandle(FHandle);
508	<	inherited;
508	>	{$ENDIF}
509	>	inherited Destroy;
510		end;
511
512		function TIBInputRawFile.ReadParameters: Boolean;
#	Line 1761 | Line 515 | var
515		BytesRead: DWord;
516		begin
517		result := False;
518	+	{$IFDEF UNIX}
519	+	if FHandle <> -1 then
520	+	{$ELSE}
521		if FHandle <> 0 then
522	+	{$ENDIF}
523		begin
524		for i := 0 to Params.Count - 1 do
525		begin
526	<	ReadFile(FHandle, Params[i].Data^.sqldata^, Params[i].Data^.sqllen,
526	>	{$IFDEF UNIX}
527	>	BytesRead := FpRead(FHandle,Params[i].GetAsPointer^,Params[i].GetSize);
528	>	{$ELSE}
529	>	ReadFile(FHandle, Params[i].GetAsPointer^, Params[i].GetSize,
530		BytesRead, nil);
531	<	if BytesRead <> DWORD(Params[i].Data^.sqllen) then
531	>	{$ENDIF}
532	>	if BytesRead <> DWORD(Params[i].GetSize) then
533		exit;
534		end;
535		result := True;
#	Line 1776 | Line 538 | end;
538
539		procedure TIBInputRawFile.ReadyFile;
540		begin
541	+	{$IFDEF UNIX}
542	+	if FHandle <> -1 then
543	+	fpclose(FHandle);
544	+	FHandle := FpOpen(Filename,O_RdOnly);
545	+	if FHandle = -1 then
546	+	raise Exception.CreateFmt('Unable to open file %s',[Filename]);
547	+	{$ELSE}
548		if FHandle <> 0 then
549		CloseHandle(FHandle);
550		FHandle := CreateFile(PChar(Filename), GENERIC_READ, 0, nil, OPEN_EXISTING,
551		FILE_FLAG_SEQUENTIAL_SCAN, 0);
552		if FHandle = INVALID_HANDLE_VALUE then
553		FHandle := 0;
554	+	{$ENDIF}
555		end;
556
557		{ TIBSQL }
558		constructor TIBSQL.Create(AOwner: TComponent);
559		begin
560		inherited Create(AOwner);
1791	–	FIBLoaded := False;
1792	–	CheckIBLoaded;
1793	–	FIBLoaded := True;
561		FGenerateParamNames := False;
562		FGoToFirstRecordOnExecute := True;
563		FBase := TIBBase.Create(Self);
564		FBase.BeforeDatabaseDisconnect := DoBeforeDatabaseDisconnect;
565		FBase.BeforeTransactionEnd := BeforeTransactionEnd;
1799	–	FBOF := False;
1800	–	FEOF := False;
1801	–	FPrepared := False;
566		FRecordCount := 0;
567		FSQL := TStringList.Create;
568		TStringList(FSQL).OnChanging := SQLChanging;
569	<	FProcessedSQL := TStringList.Create;
1806	<	FHandle := nil;
1807	<	FSQLParams := TIBXSQLDA.Create(self);
1808	<	FSQLRecord := TIBXSQLDA.Create(self);
1809	<	FSQLType := SQLUnknown;
569	>	TStringList(FSQL).OnChange := SQLChanged;
570		FParamCheck := True;
1811	–	FCursor := Name + RandomString(8);
571		if AOwner is TIBDatabase then
572		Database := TIBDatabase(AOwner)
573		else
#	Line 1818 | Line 577 | end;
577
578		destructor TIBSQL.Destroy;
579		begin
580	<	if FIBLoaded then
581	<	begin
582	<	if (FOpen) then
583	<	Close;
1825	<	if (FHandle <> nil) then
1826	<	FreeHandle;
1827	<	FSQL.Free;
1828	<	FProcessedSQL.Free;
1829	<	FBase.Free;
1830	<	FSQLParams.Free;
1831	<	FSQLRecord.Free;
1832	<	end;
1833	<	inherited;
580	>	FreeHandle;
581	>	FSQL.Free;
582	>	FBase.Free;
583	>	inherited Destroy;
584		end;
585
586		procedure TIBSQL.BatchInput(InputObject: TIBBatchInput);
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 1849 | 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 1866 | 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;
1885	–	var
1886	–	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(
1895	<	[isc_bad_stmt_handle, isc_dsql_cursor_close_err]) then
1896	<	IBDatabaseError;
1897	<	end;
1898	<	finally
1899	<	FEOF := False;
1900	<	FBOF := False;
1901	<	FOpen := False;
1902	<	FRecordCount := 0;
1903	<	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
1910	<	result := Transaction.Call(ErrCode, RaiseError)
647	>	if FResults <> nil then
648	>	Result := FResults.GetCount
649		else
650	<	if RaiseError and (ErrCode > 0) then
651	<	IBDataBaseError;
650	>	if FMetaData <> nil then
651	>	Result := FMetaData.GetCount
652	>	else
653	>	Result := 0;
654	>	end;
655	>
656	>	function TIBSQL.GetOpen: Boolean;
657	>	begin
658	>	Result := FResultSet <> nil;
659		end;
660
661	<	function TIBSQL.Current: TIBXSQLDA;
661	>	function TIBSQL.GetPrepared: Boolean;
662		begin
663	<	result := FSQLRecord;
663	>	Result := (FStatement <> nil) and FStatement.IsPrepared;
664	>	end;
665	>
666	>	function TIBSQL.GetSQLStatementType: TIBSQLStatementTypes;
667	>	begin
668	>	if FStatement = nil then
669	>	Result := SQLUnknown
670	>	else
671	>	Result := FStatement.GetSQLStatementType;
672	>	end;
673	>
674	>	procedure TIBSQL.SetUniqueParamNames(AValue: Boolean);
675	>	begin
676	>	if FUniqueParamNames = AValue then Exit;
677	>	FreeHandle;
678	>	FUniqueParamNames := AValue;
679		end;
680
681		procedure TIBSQL.DoBeforeDatabaseDisconnect(Sender: TObject);
682		begin
683	<	if (FHandle <> nil) then begin
1924	<	Close;
1925	<	FreeHandle;
1926	<	end;
683	>	FreeHandle;
684		end;
685
686		procedure TIBSQL.ExecQuery;
#	Line 1933 | 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 FGoToFirstRecordOnExecute then
709	<	Next;
710	<	end;
1954	<	SQLExecProcedure: begin
1955	<	fetch_res := Call(isc_dsql_execute2(StatusVector,
1956	<	TRHandle,
1957	<	@FHandle,
1958	<	Database.SQLDialect,
1959	<	FSQLParams.AsXSQLDA,
1960	<	FSQLRecord.AsXSQLDA), False);
1961	<	if (fetch_res <> 0) and (fetch_res <> isc_deadlock) then
1962	<	begin
1963	<	{ Sometimes a prepared stored procedure appears to get
1964	<	off sync on the server ....This code is meant to try
1965	<	to work around the problem simply by "retrying". This
1966	<	need to be reproduced and fixed.
1967	<	}
1968	<	isc_dsql_prepare(StatusVector, TRHandle, @FHandle, 0,
1969	<	PChar(FProcessedSQL.Text), 1, nil);
1970	<	Call(isc_dsql_execute2(StatusVector,
1971	<	TRHandle,
1972	<	@FHandle,
1973	<	Database.SQLDialect,
1974	<	FSQLParams.AsXSQLDA,
1975	<	FSQLRecord.AsXSQLDA), True);
1976	<	end;
1977	<	end
1978	<	else
1979	<	Call(isc_dsql_execute(StatusVector,
1980	<	TRHandle,
1981	<	@FHandle,
1982	<	Database.SQLDialect,
1983	<	FSQLParams.AsXSQLDA), True)
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	<	if not (csDesigning in ComponentState) then
713	<	MonitorHook.SQLExecute(Self);
712	>	FBase.DoAfterExecQuery(self);
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;
1995	<	var
1996	<	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]);
2001	–	result := GetFields(i);
737		end;
738
739	<	function TIBSQL.GetFields(const Idx: Integer): 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): 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;
2020	<	var
2021	<	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
2035	<	Close;
2036	<	raise;
2037	<	end;
2038	<	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;
2049	–	var
2050	–	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
2060	<	isc_res :=
2061	<	Call(isc_dsql_free_statement(StatusVector, @FHandle, DSQL_drop), False);
2062	<	if (StatusVector^ = 1) and (isc_res > 0) and (isc_res <> isc_bad_stmt_handle) then
2063	<	IBDataBaseError;
2064	<	end;
2065	<	finally
2066	<	FPrepared := False;
2067	<	FHandle := nil;
2068	<	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 2073 | Line 808 | begin
808		result := FBase.Database;
809		end;
810
2076	–	function TIBSQL.GetDBHandle: PISC_DB_HANDLE;
2077	–	begin
2078	–	result := FBase.DBHandle;
2079	–	end;
2080	–
811		function TIBSQL.GetPlan: String;
2082	–	var
2083	–	result_buffer: array[0..16384] of Char;
2084	–	result_length, i: Integer;
2085	–	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 := Char(isc_info_sql_get_plan);
2094	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 2, @info_request,
2095	<	SizeOf(result_buffer), result_buffer), True);
2096	<	if (result_buffer[0] <> Char(isc_info_sql_get_plan)) then
2097	<	IBError(ibxeUnknownError, [nil]);
2098	<	result_length := isc_vax_integer(@result_buffer[1], 2);
2099	<	SetString(result, nil, result_length);
2100	<	for i := 1 to result_length do
2101	<	result[i] := result_buffer[i + 2];
2102	<	result := Trim(result);
2103	<	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;
827	>	function TIBSQL.GetRowsAffected: Integer;
828		var
829	<	result_buffer: array[0..1048] of Char;
2114	<	info_request: Char;
829	>	SelectCount, InsertCount, UpdateCount, DeleteCount: integer;
830		begin
831		if not Prepared then
832	<	result := -1
833	<	else begin
834	<	info_request := Char(isc_info_sql_records);
835	<	if isc_dsql_sql_info(StatusVector, @FHandle, 1, @info_request,
836	<	SizeOf(result_buffer), result_buffer) > 0 then
2122	<	IBDatabaseError;
2123	<	if (result_buffer[0] <> Char(isc_info_sql_records)) then
2124	<	result := -1
2125	<	else
2126	<	case SQLType of
2127	<	SQLUpdate:   Result := isc_vax_integer(@result_buffer[6], 4);
2128	<	SQLDelete:   Result := isc_vax_integer(@result_buffer[13], 4);
2129	<	SQLInsert:   Result := isc_vax_integer(@result_buffer[27], 4);
2130	<	else         Result := -1 ;
2131	<	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 2144 | Line 849 | begin
849		result := FBase.Transaction;
850		end;
851
2147	–	function TIBSQL.GetTRHandle: PISC_TR_HANDLE;
2148	–	begin
2149	–	result := FBase.TRHandle;
2150	–	end;
2151	–
2152	–	{
2153	–	Preprocess SQL
2154	–	Using FSQL, process the typed SQL and put the process SQL
2155	–	in FProcessedSQL and parameter names in FSQLParams
2156	–	}
2157	–	procedure TIBSQL.PreprocessSQL;
2158	–	var
2159	–	cCurChar, cNextChar, cQuoteChar: Char;
2160	–	sSQL, sProcessedSQL, sParamName: String;
2161	–	i, iLenSQL, iSQLPos: Integer;
2162	–	iCurState, iCurParamState: Integer;
2163	–	iParamSuffix: Integer;
2164	–	slNames: TStrings;
2165	–
2166	–	const
2167	–	DefaultState = 0;
2168	–	CommentState = 1;
2169	–	QuoteState = 2;
2170	–	ParamState = 3;
2171	–	ParamDefaultState = 0;
2172	–	ParamQuoteState = 1;
2173	–
2174	–	procedure AddToProcessedSQL(cChar: Char);
2175	–	begin
2176	–	sProcessedSQL[iSQLPos] := cChar;
2177	–	Inc(iSQLPos);
2178	–	end;
2179	–
2180	–	begin
2181	–	slNames := TStringList.Create;
2182	–	try
2183	–	{ Do some initializations of variables }
2184	–	iParamSuffix := 0;
2185	–	cQuoteChar := '''';
2186	–	sSQL := FSQL.Text;
2187	–	iLenSQL := Length(sSQL);
2188	–	SetString(sProcessedSQL, nil, iLenSQL + 1);
2189	–	i := 1;
2190	–	iSQLPos := 1;
2191	–	iCurState := DefaultState;
2192	–	iCurParamState := ParamDefaultState;
2193	–	{ Now, traverse through the SQL string, character by character,
2194	–	picking out the parameters and formatting correctly for InterBase }
2195	–	while (i <= iLenSQL) do begin
2196	–	{ Get the current token and a look-ahead }
2197	–	cCurChar := sSQL[i];
2198	–	if i = iLenSQL then
2199	–	cNextChar := #0
2200	–	else
2201	–	cNextChar := sSQL[i + 1];
2202	–	{ Now act based on the current state }
2203	–	case iCurState of
2204	–	DefaultState: begin
2205	–	case cCurChar of
2206	–	'''', '"': begin
2207	–	cQuoteChar := cCurChar;
2208	–	iCurState := QuoteState;
2209	–	end;
2210	–	'?', ':': begin
2211	–	iCurState := ParamState;
2212	–	AddToProcessedSQL('?');
2213	–	end;
2214	–	'/': if (cNextChar = '*') then begin
2215	–	AddToProcessedSQL(cCurChar);
2216	–	Inc(i);
2217	–	iCurState := CommentState;
2218	–	end;
2219	–	end;
2220	–	end;
2221	–	CommentState: begin
2222	–	if (cNextChar = #0) then
2223	–	IBError(ibxeSQLParseError, [SEOFInComment])
2224	–	else if (cCurChar = '*') then begin
2225	–	if (cNextChar = '/') then
2226	–	iCurState := DefaultState;
2227	–	end;
2228	–	end;
2229	–	QuoteState: begin
2230	–	if cNextChar = #0 then
2231	–	IBError(ibxeSQLParseError, [SEOFInString])
2232	–	else if (cCurChar = cQuoteChar) then begin
2233	–	if (cNextChar = cQuoteChar) then begin
2234	–	AddToProcessedSQL(cCurChar);
2235	–	Inc(i);
2236	–	end else
2237	–	iCurState := DefaultState;
2238	–	end;
2239	–	end;
2240	–	ParamState:
2241	–	begin
2242	–	{ collect the name of the parameter }
2243	–	if iCurParamState = ParamDefaultState then
2244	–	begin
2245	–	if cCurChar = '"' then
2246	–	iCurParamState := ParamQuoteState
2247	–	else if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
2248	–	sParamName := sParamName + cCurChar
2249	–	else if FGenerateParamNames then
2250	–	begin
2251	–	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
2252	–	Inc(iParamSuffix);
2253	–	iCurState := DefaultState;
2254	–	slNames.Add(sParamName);
2255	–	sParamName := '';
2256	–	end
2257	–	else
2258	–	IBError(ibxeSQLParseError, [SParamNameExpected]);
2259	–	end
2260	–	else begin
2261	–	{ determine if Quoted parameter name is finished }
2262	–	if cCurChar = '"' then
2263	–	begin
2264	–	Inc(i);
2265	–	slNames.Add(sParamName);
2266	–	SParamName := '';
2267	–	iCurParamState := ParamDefaultState;
2268	–	iCurState := DefaultState;
2269	–	end
2270	–	else
2271	–	sParamName := sParamName + cCurChar
2272	–	end;
2273	–	{ determine if the unquoted parameter name is finished }
2274	–	if (iCurParamState <> ParamQuoteState) and
2275	–	(iCurState <> DefaultState) then
2276	–	begin
2277	–	if not (cNextChar in ['A'..'Z', 'a'..'z',
2278	–	'0'..'9', '_', '$']) then begin
2279	–	Inc(i);
2280	–	iCurState := DefaultState;
2281	–	slNames.Add(sParamName);
2282	–	sParamName := '';
2283	–	end;
2284	–	end;
2285	–	end;
2286	–	end;
2287	–	if iCurState <> ParamState then
2288	–	AddToProcessedSQL(sSQL[i]);
2289	–	Inc(i);
2290	–	end;
2291	–	AddToProcessedSQL(#0);
2292	–	FSQLParams.Count := slNames.Count;
2293	–	for i := 0 to slNames.Count - 1 do
2294	–	FSQLParams.AddName(slNames[i], i);
2295	–	FProcessedSQL.Text := sProcessedSQL;
2296	–	finally
2297	–	slNames.Free;
2298	–	end;
2299	–	end;
2300	–
852		procedure TIBSQL.SetDatabase(Value: TIBDatabase);
853		begin
854		FBase.Database := Value;
855		end;
856
857		procedure TIBSQL.Prepare;
2307	–	var
2308	–	stmt_len: Integer;
2309	–	res_buffer: array[0..7] of Char;
2310	–	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);
2330	<	{ After preparing the statement, query the stmt type and possibly
2331	<	create a FSQLRecord "holder" }
2332	<	{ Get the type of the statement }
2333	<	type_item := Char(isc_info_sql_stmt_type);
2334	<	Call(isc_dsql_sql_info(StatusVector, @FHandle, 1, @type_item,
2335	<	SizeOf(res_buffer), res_buffer), True);
2336	<	if (res_buffer[0] <> Char(isc_info_sql_stmt_type)) then
2337	<	IBError(ibxeUnknownError, [nil]);
2338	<	stmt_len := isc_vax_integer(@res_buffer[1], 2);
2339	<	FSQLType := TIBSQLTypes(isc_vax_integer(@res_buffer[3], stmt_len));
2340	<	{ Done getting the type }
2341	<	case FSQLType of
2342	<	SQLGetSegment,
2343	<	SQLPutSegment,
2344	<	SQLStartTransaction: begin
2345	<	FreeHandle;
2346	<	IBError(ibxeNotPermitted, [nil]);
2347	<	end;
2348	<	SQLCommit,
2349	<	SQLRollback,
2350	<	SQLDDL, SQLSetGenerator,
2351	<	SQLInsert, SQLUpdate, SQLDelete, SQLSelect, SQLSelectForUpdate,
2352	<	SQLExecProcedure: begin
2353	<	{ We already know how many inputs there are, so... }
2354	<	if (FSQLParams.FXSQLDA <> nil) and
2355	<	(Call(isc_dsql_describe_bind(StatusVector, @FHandle, Database.SQLDialect,
2356	<	FSQLParams.FXSQLDA), False) > 0) then
2357	<	IBDataBaseError;
2358	<	FSQLParams.Initialize;
2359	<	if FSQLType in [SQLSelect, SQLSelectForUpdate,
2360	<	SQLExecProcedure] then begin
2361	<	{ Allocate an initial output descriptor (with one column) }
2362	<	FSQLRecord.Count := 1;
2363	<	{ Using isc_dsql_describe, get the right size for the columns... }
2364	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2365	<	if FSQLRecord.FXSQLDA^.sqld > FSQLRecord.FXSQLDA^.sqln then begin
2366	<	FSQLRecord.Count := FSQLRecord.FXSQLDA^.sqld;
2367	<	Call(isc_dsql_describe(StatusVector, @FHandle, Database.SQLDialect, FSQLRecord.FXSQLDA), True);
2368	<	end else if FSQLRecord.FXSQLDA^.sqld = 0 then
2369	<	FSQLRecord.Count := 0;
2370	<	FSQLRecord.Initialize;
2371	<	end;
2372	<	end;
2373	<	end;
2374	<	FPrepared := True;
2375	<	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);
2377	–	except
2378	–	on E: Exception do begin
2379	–	if (FHandle <> nil) then
2380	–	FreeHandle;
2381	–	raise;
2382	–	end;
2383	–	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 2413 | 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.BeforeTransactionEnd(Sender: TObject);
919	>	procedure TIBSQL.SQLChanged(Sender: TObject);
920		begin
921	<	if (FOpen) then
922	<	Close;
921	>	if assigned(OnSQLChanged) then
922	>	OnSQLChanged(self);
923	>	end;
924	>
925	>	procedure TIBSQL.BeforeTransactionEnd(Sender: TObject;
926	>	Action: TTransactionAction);
927	>	begin
928	>	if not (Owner is TIBCustomDataSet) then
929	>	FreeHandle;
930		end;
931
932		end.

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