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root/public/ibx/trunk/fbintf/client/FBSQLData.pas

Comparing ibx/trunk/fbintf/client/FBSQLData.pas (file contents):
Revision 56 by tony, Mon Mar 6 10:20:02 2017 UTC vs.
Revision 291 by tony, Fri Apr 17 10:26:08 2020 UTC

#	Line 76 | Line 76 | unit FBSQLData;
76		methods are needed for SQL parameters only. The string getters and setters
77		are virtual as SQLVar and Array encodings of string data is different.}
78
79	–	{ $define ALLOWDIALECT3PARAMNAMES}
80	–
81	–	{$ifndef ALLOWDIALECT3PARAMNAMES}
82	–
83	–	{ Note on SQL Dialects and SQL Parameter Names
84	–	--------------------------------------------
85	–
86	–	Even when dialect 3 quoted format parameter names are not supported, IBX still processes
87	–	parameter names case insensitive. This does result in some additional overhead
88	–	due to a call to "AnsiUpperCase". This can be avoided by undefining
89	–	"UseCaseInSensitiveParamName" below.
90	–
91	–	Note: do not define "UseCaseSensitiveParamName" when "ALLOWDIALECT3PARAMNAMES"
92	–	is defined. This will not give a useful result.
93	–	}
94	–	{$define UseCaseInSensitiveParamName}
95	–	{$endif}
79
80		interface
81
82		uses
83	<	Classes, SysUtils, IBExternals, IBHeader, IB,  FBActivityMonitor;
83	>	Classes, SysUtils, IBExternals, IBHeader, IB,  FBActivityMonitor, FBClientAPI;
84
85		type
86
#	Line 105 | Line 88 | type
88
89		TSQLDataItem = class(TFBInterfacedObject)
90		private
91	+	FFirebirdClientAPI: TFBClientAPI;
92		function AdjustScale(Value: Int64; aScale: Integer): Double;
93		function AdjustScaleToInt64(Value: Int64; aScale: Integer): Int64;
94		function AdjustScaleToCurrency(Value: Int64; aScale: Integer): Currency;
95	+	function GetTimestampFormatStr: AnsiString;
96	+	function GetDateFormatStr(IncludeTime: boolean): AnsiString;
97	+	function GetTimeFormatStr: AnsiString;
98		procedure SetAsInteger(AValue: Integer);
99		protected
100		function AdjustScaleFromCurrency(Value: Currency; aScale: Integer): Int64;
#	Line 128 | Line 115 | type
115		property DataLength: cardinal read GetDataLength write SetDataLength;
116
117		public
118	+	constructor Create(api: TFBClientAPI);
119		function GetSQLType: cardinal; virtual; abstract;
120		function GetSQLTypeName: AnsiString; overload;
121		class function GetSQLTypeName(SQLType: short): AnsiString; overload;
122	+	function GetStrDataLength: short;
123		function GetName: AnsiString; virtual; abstract;
124		function GetScale: integer; virtual; abstract;
125		function GetAsBoolean: boolean;
#	Line 145 | Line 134 | type
134		function GetAsShort: short;
135		function GetAsString: AnsiString; virtual;
136		function GetIsNull: Boolean; virtual;
137	<	function getIsNullable: boolean; virtual;
137	>	function GetIsNullable: boolean; virtual;
138		function GetAsVariant: Variant;
139		function GetModified: boolean; virtual;
140	+	function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
141		procedure SetAsBoolean(AValue: boolean); virtual;
142		procedure SetAsCurrency(Value: Currency); virtual;
143		procedure SetAsInt64(Value: Int64); virtual;
#	Line 162 | Line 152 | type
152		procedure SetAsShort(Value: short); virtual;
153		procedure SetAsString(Value: AnsiString); virtual;
154		procedure SetAsVariant(Value: Variant);
155	+	procedure SetAsNumeric(Value: Int64; aScale: integer);
156		procedure SetIsNull(Value: Boolean); virtual;
157		procedure SetIsNullable(Value: Boolean); virtual;
158		procedure SetName(aValue: AnsiString); virtual;
#	Line 195 | Line 186 | type
186
187		TSQLDataArea = class
188		private
189	+	FCaseSensitiveParams: boolean;
190		function GetColumn(index: integer): TSQLVarData;
191		function GetCount: integer;
192		protected
#	Line 217 | Line 209 | type
209		var data: PByte); virtual;
210		procedure RowChange;
211		function StateChanged(var ChangeSeqNo: integer): boolean; virtual; abstract;
212	+	property CaseSensitiveParams: boolean read FCaseSensitiveParams
213	+	write FCaseSensitiveParams; {Only used when IsInputDataArea true}
214		property Count: integer read GetCount;
215		property Column[index: integer]: TSQLVarData read GetColumn;
216		property UniqueRelationName: AnsiString read FUniqueRelationName;
#	Line 299 | Line 293 | type
293		FIBXSQLVAR: TSQLVarData;
294		FOwner: IUnknown;         {Keep reference to ensure Metadata/statement not discarded}
295		FPrepareSeqNo: integer;
302	–	FStatement: IStatement;
296		FChangeSeqNo: integer;
297		protected
298		procedure CheckActive; override;
#	Line 311 | Line 304 | type
304		constructor Create(aOwner: IUnknown; aIBXSQLVAR: TSQLVarData);
305		destructor Destroy; override;
306		function GetSQLDialect: integer; override;
314	–	property Statement: IStatement read FStatement;
307
308		public
309		{IColumnMetaData}
#	Line 329 | Line 321 | type
321		function GetSize: cardinal;
322		function GetArrayMetaData: IArrayMetaData;
323		function GetBlobMetaData: IBlobMetaData;
324	+	function GetStatement: IStatement;
325	+	function GetTransaction: ITransaction; virtual;
326		property Name: AnsiString read GetName;
327		property Size: cardinal read GetSize;
328		property CharSetID: cardinal read getCharSetID;
329		property SQLSubtype: integer read getSubtype;
330		property IsNullable: Boolean read GetIsNullable;
331	+	public
332	+	property Statement: IStatement read GetStatement;
333		end;
334
335		{ TIBSQLData }
336
337		TIBSQLData = class(TColumnMetaData,ISQLData)
338	+	private
339	+	FTransaction: ITransaction;
340		protected
341		procedure CheckActive; override;
342		public
343	+	function GetTransaction: ITransaction; override;
344		function GetIsNull: Boolean; override;
345		function GetAsArray: IArray;
346		function GetAsBlob: IBlob; overload;
#	Line 428 | Line 427 | type
427		function getSQLParam(index: integer): ISQLParam;
428		function ByName(Idx: AnsiString): ISQLParam ;
429		function GetModified: Boolean;
430	+	function GetHasCaseSensitiveParams: Boolean;
431		end;
432
433		{ TResults }
#	Line 449 | Line 449 | type
449		function ByName(Idx: AnsiString): ISQLData;
450		function getSQLData(index: integer): ISQLData;
451		procedure GetData(index: integer; var IsNull:boolean; var len: short; var data: PByte);
452	+	function GetStatement: IStatement;
453		function GetTransaction: ITransaction; virtual;
454		procedure SetRetainInterfaces(aValue: boolean);
455		end;
456
457		implementation
458
459	<	uses FBMessages, FBClientAPI, variants, IBUtils, FBTransaction;
459	<
459	>	uses FBMessages, variants, IBUtils, FBTransaction, DateUtils;
460
461		{ TSQLDataArea }
462
#	Line 509 | Line 509 | end;
509
510		procedure TSQLDataArea.PreprocessSQL(sSQL: AnsiString; GenerateParamNames: boolean;
511		var sProcessedSQL: AnsiString);
512	–	var
513	–	cCurChar, cNextChar, cQuoteChar: AnsiChar;
514	–	sParamName: AnsiString;
515	–	j, i, iLenSQL, iSQLPos: Integer;
516	–	iCurState {$ifdef ALLOWDIALECT3PARAMNAMES}, iCurParamState {$endif}: Integer;
517	–	iParamSuffix: Integer;
518	–	slNames: TStrings;
519	–	StrBuffer: PByte;
520	–	found: boolean;
521	–
522	–	const
523	–	DefaultState = 0;
524	–	CommentState = 1;
525	–	QuoteState = 2;
526	–	ParamState = 3;
527	–	ArrayDimState = 4;
528	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
529	–	ParamDefaultState = 0;
530	–	ParamQuoteState = 1;
531	–	{$endif}
532	–
533	–	procedure AddToProcessedSQL(cChar: AnsiChar);
534	–	begin
535	–	StrBuffer[iSQLPos] := byte(cChar);
536	–	Inc(iSQLPos);
537	–	end;
538	–
539	–	begin
540	–	if not IsInputDataArea then
541	–	IBError(ibxeNotPermitted,[nil]);
512
513	<	sParamName := '';
544	<	iLenSQL := Length(sSQL);
545	<	GetMem(StrBuffer,iLenSQL + 1);
546	<	slNames := TStringList.Create;
547	<	try
548	<	{ Do some initializations of variables }
549	<	iParamSuffix := 0;
550	<	cQuoteChar := '''';
551	<	i := 1;
552	<	iSQLPos := 0;
553	<	iCurState := DefaultState;
554	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
555	<	iCurParamState := ParamDefaultState;
556	<	{$endif}
557	<	{ Now, traverse through the SQL string, character by character,
558	<	picking out the parameters and formatting correctly for InterBase }
559	<	while (i <= iLenSQL) do begin
560	<	{ Get the current token and a look-ahead }
561	<	cCurChar := sSQL[i];
562	<	if i = iLenSQL then
563	<	cNextChar := #0
564	<	else
565	<	cNextChar := sSQL[i + 1];
566	<	{ Now act based on the current state }
567	<	case iCurState of
568	<	DefaultState:
569	<	begin
570	<	case cCurChar of
571	<	'''', '"':
572	<	begin
573	<	cQuoteChar := cCurChar;
574	<	iCurState := QuoteState;
575	<	end;
576	<	'?', ':':
577	<	begin
578	<	iCurState := ParamState;
579	<	AddToProcessedSQL('?');
580	<	end;
581	<	'/': if (cNextChar = '*') then
582	<	begin
583	<	AddToProcessedSQL(cCurChar);
584	<	Inc(i);
585	<	iCurState := CommentState;
586	<	end;
587	<	'[':
588	<	begin
589	<	AddToProcessedSQL(cCurChar);
590	<	Inc(i);
591	<	iCurState := ArrayDimState;
592	<	end;
593	<	end;
594	<	end;
513	>	var slNames: TStrings;
514
515	<	ArrayDimState:
516	<	begin
517	<	case cCurChar of
518	<	':',',','0'..'9',' ',#9,#10,#13:
519	<	begin
601	<	AddToProcessedSQL(cCurChar);
602	<	Inc(i);
603	<	end;
604	<	else
605	<	begin
606	<	AddToProcessedSQL(cCurChar);
607	<	Inc(i);
608	<	iCurState := DefaultState;
609	<	end;
610	<	end;
611	<	end;
612	<
613	<	CommentState:
614	<	begin
615	<	if (cNextChar = #0) then
616	<	IBError(ibxeSQLParseError, [SEOFInComment])
617	<	else if (cCurChar = '*') then begin
618	<	if (cNextChar = '/') then
619	<	iCurState := DefaultState;
620	<	end;
621	<	end;
622	<	QuoteState: begin
623	<	if cNextChar = #0 then
624	<	IBError(ibxeSQLParseError, [SEOFInString])
625	<	else if (cCurChar = cQuoteChar) then begin
626	<	if (cNextChar = cQuoteChar) then begin
627	<	AddToProcessedSQL(cCurChar);
628	<	Inc(i);
629	<	end else
630	<	iCurState := DefaultState;
631	<	end;
632	<	end;
633	<	ParamState:
634	<	begin
635	<	{ collect the name of the parameter }
636	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
637	<	if iCurParamState = ParamDefaultState then
638	<	begin
639	<	if cCurChar = '"' then
640	<	iCurParamState := ParamQuoteState
641	<	else
642	<	{$endif}
643	<	if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
644	<	sParamName := sParamName + cCurChar
645	<	else if GenerateParamNames then
646	<	begin
647	<	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
648	<	Inc(iParamSuffix);
649	<	iCurState := DefaultState;
650	<	slNames.AddObject(sParamName,self); //Note local convention
651	<	//add pointer to self to mark entry
652	<	sParamName := '';
653	<	end
654	<	else
655	<	IBError(ibxeSQLParseError, [SParamNameExpected]);
656	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
657	<	end
658	<	else begin
659	<	{ determine if Quoted parameter name is finished }
660	<	if cCurChar = '"' then
661	<	begin
662	<	Inc(i);
663	<	slNames.Add(sParamName);
664	<	SParamName := '';
665	<	iCurParamState := ParamDefaultState;
666	<	iCurState := DefaultState;
667	<	end
668	<	else
669	<	sParamName := sParamName + cCurChar
670	<	end;
671	<	{$endif}
672	<	{ determine if the unquoted parameter name is finished }
673	<	if {$ifdef ALLOWDIALECT3PARAMNAMES}(iCurParamState <> ParamQuoteState) and {$endif}
674	<	(iCurState <> DefaultState) then
675	<	begin
676	<	if not (cNextChar in ['A'..'Z', 'a'..'z',
677	<	'0'..'9', '_', '$']) then begin
678	<	Inc(i);
679	<	iCurState := DefaultState;
680	<	slNames.Add(sParamName);
681	<	sParamName := '';
682	<	end;
683	<	end;
684	<	end;
685	<	end;
686	<	if (iCurState <> ParamState) and (i <= iLenSQL) then
687	<	AddToProcessedSQL(sSQL[i]);
688	<	Inc(i);
689	<	end;
690	<	AddToProcessedSQL(#0);
691	<	sProcessedSQL := strpas(PAnsiChar(StrBuffer));
515	>	procedure SetColumnNames(slNames: TStrings);
516	>	var i, j: integer;
517	>	found: boolean;
518	>	begin
519	>	found := false;
520		SetCount(slNames.Count);
521		for i := 0 to slNames.Count - 1 do
522		begin
#	Line 709 | Line 537 | begin
537		Column[i].UniqueName := not found;
538		end;
539		end;
540	+	end;
541	+
542	+	begin
543	+	if not IsInputDataArea then
544	+	IBError(ibxeNotPermitted,[nil]);
545	+
546	+	slNames := TStringList.Create;
547	+	try
548	+	sProcessedSQL := TSQLParamProcessor.Execute(sSQL,GenerateParamNames,slNames);
549	+	SetColumnNames(slNames);
550		finally
551		slNames.Free;
714	–	FreeMem(StrBuffer);
552		end;
553		end;
554
#	Line 725 | Line 562 | var
562		s: AnsiString;
563		i: Integer;
564		begin
565	<	{$ifdef UseCaseInSensitiveParamName}
566	<	s := AnsiUpperCase(Idx);
567	<	{$else}
565	>	if not IsInputDataArea or not CaseSensitiveParams then
566	>	s := AnsiUpperCase(Idx)
567	>	else
568		s := Idx;
569	<	{$endif}
569	>
570		for i := 0 to Count - 1 do
571		if Column[i].Name = s then
572		begin
#	Line 761 | Line 598 | end;
598
599		procedure TSQLVarData.SetName(AValue: AnsiString);
600		begin
601	<	if FName = AValue then Exit;
765	<	{$ifdef UseCaseInSensitiveParamName}
766	<	if Parent.IsInputDataArea then
601	>	if not Parent.IsInputDataArea or not Parent.CaseSensitiveParams then
602		FName := AnsiUpperCase(AValue)
603		else
769	–	{$endif}
604		FName := AValue;
605		end;
606
#	Line 787 | Line 621 | begin
621
622		FVarString := aValue;
623		SQLType := SQL_TEXT;
624	+	Scale := 0;
625		SetSQLData(PByte(PAnsiChar(FVarString)),Length(aValue));
626		end;
627
#	Line 947 | Line 782 | begin
782		result := Value;
783		end;
784
785	+	function TSQLDataItem.GetDateFormatStr(IncludeTime: boolean): AnsiString;
786	+	begin
787	+	{$IF declared(DefaultFormatSettings)}
788	+	with DefaultFormatSettings do
789	+	{$ELSE}
790	+	{$IF declared(FormatSettings)}
791	+	with FormatSettings do
792	+	{$IFEND}
793	+	{$IFEND}
794	+	case GetSQLDialect of
795	+	1:
796	+	if IncludeTime then
797	+	result := ShortDateFormat + ' ' + LongTimeFormat
798	+	else
799	+	result := ShortDateFormat;
800	+	3:
801	+	result := ShortDateFormat;
802	+	end;
803	+	end;
804	+
805	+	function TSQLDataItem.GetTimeFormatStr: AnsiString;
806	+	begin
807	+	{$IF declared(DefaultFormatSettings)}
808	+	with DefaultFormatSettings do
809	+	{$ELSE}
810	+	{$IF declared(FormatSettings)}
811	+	with FormatSettings do
812	+	{$IFEND}
813	+	{$IFEND}
814	+	Result := LongTimeFormat;
815	+	end;
816	+
817	+	function TSQLDataItem.GetTimestampFormatStr: AnsiString;
818	+	begin
819	+	{$IF declared(DefaultFormatSettings)}
820	+	with DefaultFormatSettings do
821	+	{$ELSE}
822	+	{$IF declared(FormatSettings)}
823	+	with FormatSettings do
824	+	{$IFEND}
825	+	{$IFEND}
826	+	Result := ShortDateFormat + ' ' +  LongTimeFormat + '.zzz';
827	+	end;
828	+
829		procedure TSQLDataItem.SetAsInteger(AValue: Integer);
830		begin
831		SetAsLong(aValue);
#	Line 1045 | Line 924 | begin
924		//Do nothing by default
925		end;
926
927	+	constructor TSQLDataItem.Create(api: TFBClientAPI);
928	+	begin
929	+	inherited Create;
930	+	FFirebirdClientAPI := api;
931	+	end;
932	+
933		function TSQLDataItem.GetSQLTypeName: AnsiString;
934		begin
935		Result := GetSQLTypeName(GetSQLType);
#	Line 1071 | Line 956 | begin
956		end;
957		end;
958
959	+	function TSQLDataItem.GetStrDataLength: short;
960	+	begin
961	+	with FFirebirdClientAPI do
962	+	if SQLType = SQL_VARYING then
963	+	Result := DecodeInteger(SQLData, 2)
964	+	else
965	+	Result := DataLength;
966	+	end;
967	+
968		function TSQLDataItem.GetAsBoolean: boolean;
969		begin
970		CheckActive;
#	Line 1151 | Line 1045 | begin
1045		CheckActive;
1046		result := 0;
1047		if not IsNull then
1048	<	with FirebirdClientAPI do
1048	>	with FFirebirdClientAPI do
1049		case SQLType of
1050		SQL_TEXT, SQL_VARYING: begin
1051		try
#	Line 1291 | Line 1185 | begin
1185		result := '';
1186		{ Check null, if so return a default string }
1187		if not IsNull then
1188	<	with FirebirdClientAPI do
1188	>	with FFirebirdClientAPI do
1189		case SQLType of
1190		SQL_BOOLEAN:
1191		if AsBoolean then
#	Line 1316 | Line 1210 | begin
1210		Result := rs
1211		end;
1212		SQL_TYPE_DATE:
1213	<	case GetSQLDialect of
1320	<	1 : result := DateTimeToStr(AsDateTime);
1321	<	3 : result := DateToStr(AsDateTime);
1322	<	end;
1213	>	result := FormatDateTime(GetDateFormatStr(TimeOf(AsDateTime)<>0),AsDateTime);
1214		SQL_TYPE_TIME :
1215	<	result := TimeToStr(AsDateTime);
1215	>	result := FormatDateTime(GetTimeFormatStr,AsDateTime);
1216		SQL_TIMESTAMP:
1217	<	{$IF declared(DefaultFormatSettings)}
1327	<	with DefaultFormatSettings do
1328	<	{$ELSE}
1329	<	{$IF declared(FormatSettings)}
1330	<	with FormatSettings do
1331	<	{$IFEND}
1332	<	{$IFEND}
1333	<	result := FormatDateTime(ShortDateFormat + ' ' +
1334	<	LongTimeFormat+'.zzz',AsDateTime);
1217	>	result := FormatDateTime(GetTimestampFormatStr,AsDateTime);
1218		SQL_SHORT, SQL_LONG:
1219		if Scale = 0 then
1220		result := IntToStr(AsLong)
#	Line 1359 | Line 1242 | begin
1242		Result := false;
1243		end;
1244
1245	<	function TSQLDataItem.getIsNullable: boolean;
1245	>	function TSQLDataItem.GetIsNullable: boolean;
1246		begin
1247		CheckActive;
1248		Result := false;
#	Line 1407 | Line 1290 | begin
1290		Result := false;
1291		end;
1292
1293	+	function TSQLDataItem.GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats
1294	+	): integer;
1295	+	begin
1296	+	case DateTimeFormat of
1297	+	dfTimestamp:
1298	+	Result := Length(GetTimestampFormatStr);
1299	+	dfDateTime:
1300	+	Result := Length(GetDateFormatStr(true));
1301	+	dfTime:
1302	+	Result := Length(GetTimeFormatStr);
1303	+	else
1304	+	Result := 0;
1305	+	end;
1306	+	end;
1307	+
1308
1309		procedure TSQLDataItem.SetIsNull(Value: Boolean);
1310		begin
#	Line 1470 | Line 1368 | begin
1368
1369		SQLType := SQL_TYPE_DATE;
1370		DataLength := SizeOf(ISC_DATE);
1371	<	with FirebirdClientAPI do
1371	>	with FFirebirdClientAPI do
1372		SQLEncodeDate(Value,SQLData);
1373		Changed;
1374		end;
#	Line 1490 | Line 1388 | begin
1388
1389		SQLType := SQL_TYPE_TIME;
1390		DataLength := SizeOf(ISC_TIME);
1391	<	with FirebirdClientAPI do
1391	>	with FFirebirdClientAPI do
1392		SQLEncodeTime(Value,SQLData);
1393		Changed;
1394		end;
#	Line 1504 | Line 1402 | begin
1402		Changing;
1403		SQLType := SQL_TIMESTAMP;
1404		DataLength := SizeOf(ISC_TIME) + sizeof(ISC_DATE);
1405	<	with FirebirdClientAPI do
1405	>	with FFirebirdClientAPI do
1406		SQLEncodeDateTime(Value,SQLData);
1407		Changed;
1408		end;
#	Line 1629 | Line 1527 | begin
1527		end;
1528		end;
1529
1530	+	procedure TSQLDataItem.SetAsNumeric(Value: Int64; aScale: integer);
1531	+	begin
1532	+	CheckActive;
1533	+	Changing;
1534	+	if IsNullable then
1535	+	IsNull := False;
1536	+
1537	+	SQLType := SQL_INT64;
1538	+	Scale := aScale;
1539	+	DataLength := SizeOf(Int64);
1540	+	PInt64(SQLData)^ := Value;
1541	+	Changed;
1542	+	end;
1543	+
1544		procedure TSQLDataItem.SetAsBoolean(AValue: boolean);
1545		begin
1546		CheckActive;
#	Line 1676 | Line 1588 | end;
1588
1589		constructor TColumnMetaData.Create(aOwner: IUnknown; aIBXSQLVAR: TSQLVarData);
1590		begin
1591	<	inherited Create;
1591	>	inherited Create(aIBXSQLVAR.GetStatement.GetAttachment.getFirebirdAPI as TFBClientAPI);
1592		FIBXSQLVAR := aIBXSQLVAR;
1593		FOwner := aOwner;
1594		FPrepareSeqNo := FIBXSQLVAR.Parent.PrepareSeqNo;
#	Line 1778 | Line 1690 | begin
1690		result := FIBXSQLVAR.GetBlobMetaData;
1691		end;
1692
1693	+	function TColumnMetaData.GetStatement: IStatement;
1694	+	begin
1695	+	Result := FIBXSQLVAR.GetStatement;
1696	+	end;
1697	+
1698	+	function TColumnMetaData.GetTransaction: ITransaction;
1699	+	begin
1700	+	Result := GetStatement.GetTransaction;
1701	+	end;
1702	+
1703		{ TIBSQLData }
1704
1705		procedure TIBSQLData.CheckActive;
#	Line 1797 | Line 1719 | begin
1719		IBError(ibxeBOF,[nil]);
1720		end;
1721
1722	+	function TIBSQLData.GetTransaction: ITransaction;
1723	+	begin
1724	+	if FTransaction = nil then
1725	+	Result := inherited GetTransaction
1726	+	else
1727	+	Result := FTransaction;
1728	+	end;
1729	+
1730		function TIBSQLData.GetIsNull: Boolean;
1731		begin
1732		CheckActive;
#	Line 1840 | Line 1770 | end;
1770		{ TSQLParam }
1771
1772		procedure TSQLParam.InternalSetAsString(Value: AnsiString);
1773	+
1774	+	procedure DoSetString;
1775	+	begin
1776	+	Changing;
1777	+	FIBXSQLVar.SetString(Transliterate(Value,GetCodePage));
1778	+	Changed;
1779	+	end;
1780	+
1781		var b: IBlob;
1782	+	dt: TDateTime;
1783	+	CurrValue: Currency;
1784	+	FloatValue: single;
1785		begin
1786		CheckActive;
1787		if IsNullable then
#	Line 1866 | Line 1807 | begin
1807
1808		SQL_VARYING,
1809		SQL_TEXT:
1810	<	begin
1870	<	Changing;
1871	<	FIBXSQLVar.SetString(Transliterate(Value,GetCodePage));
1872	<	Changed;
1873	<	end;
1810	>	DoSetString;
1811
1812		SQL_SHORT,
1813		SQL_LONG,
1814		SQL_INT64:
1815	<	SetAsInt64(StrToInt(Value));
1815	>	if TryStrToCurr(Value,CurrValue) then
1816	>	SetAsNumeric(AdjustScaleFromCurrency(CurrValue,GetScale),GetScale)
1817	>	else
1818	>	DoSetString;
1819
1820		SQL_D_FLOAT,
1821		SQL_DOUBLE,
1822		SQL_FLOAT:
1823	<	SetAsDouble(StrToFloat(Value));
1823	>	if TryStrToFloat(Value,FloatValue) then
1824	>	SetAsDouble(FloatValue)
1825	>	else
1826	>	DoSetString;
1827
1828		SQL_TIMESTAMP:
1829	<	SetAsDateTime(StrToDateTime(Value));
1829	>	if TryStrToDateTime(Value,dt) then
1830	>	SetAsDateTime(dt)
1831	>	else
1832	>	DoSetString;
1833
1834		SQL_TYPE_DATE:
1835	<	SetAsDate(StrToDateTime(Value));
1835	>	if TryStrToDateTime(Value,dt) then
1836	>	SetAsDate(dt)
1837	>	else
1838	>	DoSetString;
1839
1840		SQL_TYPE_TIME:
1841	<	SetAsTime(StrToDateTime(Value));
1841	>	if TryStrToDateTime(Value,dt) then
1842	>	SetAsTime(dt)
1843	>	else
1844	>	DoSetString;
1845
1846		else
1847		IBError(ibxeInvalidDataConversion,[nil]);
#	Line 2475 | Line 2427 | begin
2427		end;
2428		end;
2429
2430	+	function TSQLParams.GetHasCaseSensitiveParams: Boolean;
2431	+	begin
2432	+	Result := FSQLParams.CaseSensitiveParams;
2433	+	end;
2434	+
2435		{ TResults }
2436
2437		procedure TResults.CheckActive;
#	Line 2493 | Line 2450 | begin
2450		end;
2451
2452		function TResults.GetISQLData(aIBXSQLVAR: TSQLVarData): ISQLData;
2453	+	var col: TIBSQLData;
2454		begin
2455		if (aIBXSQLVAR.Index < 0) or (aIBXSQLVAR.Index >= getCount) then
2456		IBError(ibxeInvalidColumnIndex,[nil]);
2457
2458		if not HasInterface(aIBXSQLVAR.Index) then
2459		AddInterface(aIBXSQLVAR.Index, TIBSQLData.Create(self,aIBXSQLVAR));
2460	<	Result := TIBSQLData(GetInterface(aIBXSQLVAR.Index));
2460	>	col := TIBSQLData(GetInterface(aIBXSQLVAR.Index));
2461	>	col.FTransaction := GetTransaction;
2462	>	Result := col;
2463		end;
2464
2465		constructor TResults.Create(aResults: TSQLDataArea);
#	Line 2556 | Line 2516 | begin
2516		FResults.GetData(index,IsNull, len,data);
2517		end;
2518
2519	+	function TResults.GetStatement: IStatement;
2520	+	begin
2521	+	Result := FStatement;
2522	+	end;
2523	+
2524		function TResults.GetTransaction: ITransaction;
2525		begin
2526		Result := FStatement.GetTransaction;

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