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Comparing ibx/trunk/fbintf/client/FBSQLData.pas (file contents):
Revision 59 by tony, Mon Mar 13 09:51:56 2017 UTC vs.
Revision 315 by tony, Thu Feb 25 11:56:36 2021 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, {$IFDEF WINDOWS} Windows, {$ENDIF} IB,  FBActivityMonitor, FBClientAPI,
84	>	FmtBCD;
85
86		type
87
88	<	{ TSQLDataItem }
88	>	{The IExTimeZoneServices is only available in FB4 and onwards}
89	>
90	>	IExTimeZoneServices = interface(ITimeZoneServices)
91	>	['{789c2eeb-c4a7-4fed-837e-0cbdef775904}']
92	>	{encode/decode - used to encode/decode the wire protocol}
93	>	procedure EncodeTimestampTZ(timestamp: TDateTime; timezoneID: TFBTimeZoneID;
94	>	bufptr: PByte); overload;
95	>	procedure EncodeTimestampTZ(timestamp: TDateTime; timezone: AnsiString;
96	>	bufptr: PByte); overload;
97	>	procedure EncodeTimeTZ(time: TDateTime; timezoneID: TFBTimeZoneID; OnDate: TDateTime;
98	>	bufptr: PByte); overload;
99	>	procedure EncodeTimeTZ(time: TDateTime; timezone: AnsiString; OnDate: TDateTime;
100	>	bufptr: PByte); overload;
101	>	procedure DecodeTimestampTZ(bufptr: PByte; var timestamp: TDateTime;
102	>	var dstOffset: smallint; var timezoneID: TFBTimeZoneID); overload;
103	>	procedure DecodeTimestampTZ(bufptr: PByte; var timestamp: TDateTime;
104	>	var dstOffset: smallint; var timezone: AnsiString); overload;
105	>	procedure DecodeTimestampTZEx(bufptr: PByte; var timestamp: TDateTime;
106	>	var dstOffset: smallint; var timezoneID: TFBTimeZoneID); overload;
107	>	procedure DecodeTimestampTZEx(bufptr: PByte; var timestamp: TDateTime;
108	>	var dstOffset: smallint; var timezone: AnsiString); overload;
109	>	procedure DecodeTimeTZ(bufptr: PByte; OnDate: TDateTime; var time: TDateTime;
110	>	var dstOffset: smallint; var timezoneID: TFBTimeZoneID); overload;
111	>	procedure DecodeTimeTZ(bufptr: PByte; OnDate: TDateTime; var time: TDateTime;
112	>	var dstOffset: smallint; var timezone: AnsiString); overload;
113	>	procedure DecodeTimeTZEx(bufptr: PByte; OnDate: TDateTime; var time: TDateTime;
114	>	var dstOffset: smallint; var timezoneID: TFBTimeZoneID); overload;
115	>	procedure DecodeTimeTZEx(bufptr: PByte; OnDate: TDateTime; var time: TDateTime;
116	>	var dstOffset: smallint; var timezone: AnsiString); overload;
117	>	end;
118	>
119	>	{ TSQLDataItem }
120
121		TSQLDataItem = class(TFBInterfacedObject)
122		private
123	+	FFirebirdClientAPI: TFBClientAPI;
124	+	FTimeZoneServices: IExTimeZoneServices;
125		function AdjustScale(Value: Int64; aScale: Integer): Double;
126		function AdjustScaleToInt64(Value: Int64; aScale: Integer): Int64;
127		function AdjustScaleToCurrency(Value: Int64; aScale: Integer): Currency;
128	+	function GetDateFormatStr(IncludeTime: boolean): AnsiString;
129	+	function GetTimeFormatStr: AnsiString;
130	+	function GetTimestampFormatStr: AnsiString;
131		procedure SetAsInteger(AValue: Integer);
132	+	procedure InternalGetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint;
133	+	var aTimezone: AnsiString; var aTimeZoneID: TFBTimeZoneID);
134		protected
135		function AdjustScaleFromCurrency(Value: Currency; aScale: Integer): Int64;
136		function AdjustScaleFromDouble(Value: Double; aScale: Integer): Int64;
137		procedure CheckActive; virtual;
138	+	procedure CheckTZSupport;
139	+	function GetAttachment: IAttachment; virtual; abstract;
140		function GetSQLDialect: integer; virtual; abstract;
141	+	function GetTimeZoneServices: IExTimeZoneServices; virtual;
142		procedure Changed; virtual;
143		procedure Changing; virtual;
144		procedure InternalSetAsString(Value: AnsiString); virtual;
#	Line 126 | Line 151 | type
151		procedure SetDataLength(len: cardinal); virtual;
152		procedure SetSQLType(aValue: cardinal); virtual;
153		property DataLength: cardinal read GetDataLength write SetDataLength;
154	<
154	>	property FirebirdClientAPI: TFBClientAPI read FFirebirdClientAPI;
155		public
156	+	constructor Create(api: TFBClientAPI);
157		function GetSQLType: cardinal; virtual; abstract;
158		function GetSQLTypeName: AnsiString; overload;
159		class function GetSQLTypeName(SQLType: short): AnsiString; overload;
160	+	function GetStrDataLength: short;
161		function GetName: AnsiString; virtual; abstract;
162		function GetScale: integer; virtual; abstract;
163		function GetAsBoolean: boolean;
164		function GetAsCurrency: Currency;
165		function GetAsInt64: Int64;
166	<	function GetAsDateTime: TDateTime;
166	>	function GetAsDateTime: TDateTime; overload;
167	>	procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
168	>	procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
169	>	procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
170	>	procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
171	>	procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
172	>	procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
173	>	function GetAsUTCDateTime: TDateTime;
174		function GetAsDouble: Double;
175		function GetAsFloat: Float;
176		function GetAsLong: Long;
#	Line 145 | Line 179 | type
179		function GetAsShort: short;
180		function GetAsString: AnsiString; virtual;
181		function GetIsNull: Boolean; virtual;
182	<	function getIsNullable: boolean; virtual;
182	>	function GetIsNullable: boolean; virtual;
183		function GetAsVariant: Variant;
184		function GetModified: boolean; virtual;
185	+	function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
186	+	function GetAsBCD: tBCD;
187	+	function GetSize: cardinal; virtual; abstract;
188	+	function GetCharSetWidth: integer; virtual; abstract;
189		procedure SetAsBoolean(AValue: boolean); virtual;
190		procedure SetAsCurrency(Value: Currency); virtual;
191		procedure SetAsInt64(Value: Int64); virtual;
192		procedure SetAsDate(Value: TDateTime); virtual;
193		procedure SetAsLong(Value: Long); virtual;
194	<	procedure SetAsTime(Value: TDateTime); virtual;
195	<	procedure SetAsDateTime(Value: TDateTime);
194	>	procedure SetAsTime(Value: TDateTime); overload;
195	>	procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime;aTimeZoneID: TFBTimeZoneID); overload;
196	>	procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
197	>	procedure SetAsDateTime(Value: TDateTime); overload;
198	>	procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
199	>	procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
200	>	procedure SetAsUTCDateTime(aUTCTime: TDateTime);
201		procedure SetAsDouble(Value: Double); virtual;
202		procedure SetAsFloat(Value: Float); virtual;
203		procedure SetAsPointer(Value: Pointer);
#	Line 163 | Line 206 | type
206		procedure SetAsString(Value: AnsiString); virtual;
207		procedure SetAsVariant(Value: Variant);
208		procedure SetAsNumeric(Value: Int64; aScale: integer);
209	+	procedure SetAsBcd(aValue: tBCD); virtual;
210		procedure SetIsNull(Value: Boolean); virtual;
211		procedure SetIsNullable(Value: Boolean); virtual;
212		procedure SetName(aValue: AnsiString); virtual;
#	Line 196 | Line 240 | type
240
241		TSQLDataArea = class
242		private
243	+	FCaseSensitiveParams: boolean;
244		function GetColumn(index: integer): TSQLVarData;
245		function GetCount: integer;
246		protected
#	Line 218 | Line 263 | type
263		var data: PByte); virtual;
264		procedure RowChange;
265		function StateChanged(var ChangeSeqNo: integer): boolean; virtual; abstract;
266	+	property CaseSensitiveParams: boolean read FCaseSensitiveParams
267	+	write FCaseSensitiveParams; {Only used when IsInputDataArea true}
268		property Count: integer read GetCount;
269		property Column[index: integer]: TSQLVarData read GetColumn;
270		property UniqueRelationName: AnsiString read FUniqueRelationName;
#	Line 247 | Line 294 | type
294		function GetRelationName: AnsiString;  virtual; abstract;
295		function GetScale: integer; virtual; abstract;
296		function GetCharSetID: cardinal; virtual; abstract;
297	+	function GetCharSetWidth: integer; virtual; abstract;
298		function GetCodePage: TSystemCodePage; virtual; abstract;
299		function GetIsNull: Boolean;   virtual; abstract;
300		function GetIsNullable: boolean; virtual; abstract;
301		function GetSQLData: PByte;  virtual; abstract;
302	<	function GetDataLength: cardinal; virtual; abstract;
302	>	function GetDataLength: cardinal; virtual; abstract; {current field length}
303	>	function GetSize: cardinal; virtual; abstract; {field length as given by metadata}
304		procedure SetIsNull(Value: Boolean); virtual; abstract;
305		procedure SetIsNullable(Value: Boolean);  virtual; abstract;
306		procedure SetSQLData(AValue: PByte; len: cardinal); virtual; abstract;
#	Line 300 | Line 349 | type
349		FIBXSQLVAR: TSQLVarData;
350		FOwner: IUnknown;         {Keep reference to ensure Metadata/statement not discarded}
351		FPrepareSeqNo: integer;
303	–	FStatement: IStatement;
352		FChangeSeqNo: integer;
353		protected
354		procedure CheckActive; override;
355	+	function GetAttachment: IAttachment; override;
356		function SQLData: PByte; override;
357		function GetDataLength: cardinal; override;
358		function GetCodePage: TSystemCodePage; override;
#	Line 312 | Line 361 | type
361		constructor Create(aOwner: IUnknown; aIBXSQLVAR: TSQLVarData);
362		destructor Destroy; override;
363		function GetSQLDialect: integer; override;
315	–	property Statement: IStatement read FStatement;
364
365		public
366		{IColumnMetaData}
#	Line 327 | Line 375 | type
375		function GetScale: integer; override;
376		function getCharSetID: cardinal; override;
377		function GetIsNullable: boolean; override;
378	<	function GetSize: cardinal;
378	>	function GetSize: cardinal; override;
379	>	function GetCharSetWidth: integer; override;
380		function GetArrayMetaData: IArrayMetaData;
381		function GetBlobMetaData: IBlobMetaData;
382	+	function GetStatement: IStatement;
383	+	function GetTransaction: ITransaction; virtual;
384		property Name: AnsiString read GetName;
385		property Size: cardinal read GetSize;
386		property CharSetID: cardinal read getCharSetID;
387		property SQLSubtype: integer read getSubtype;
388		property IsNullable: Boolean read GetIsNullable;
389	+	public
390	+	property Statement: IStatement read GetStatement;
391		end;
392
393		{ TIBSQLData }
394
395		TIBSQLData = class(TColumnMetaData,ISQLData)
396	+	private
397	+	FTransaction: ITransaction;
398		protected
399		procedure CheckActive; override;
400		public
401	+	function GetTransaction: ITransaction; override;
402		function GetIsNull: Boolean; override;
403		function GetAsArray: IArray;
404		function GetAsBlob: IBlob; overload;
#	Line 353 | Line 409 | type
409
410		{ TSQLParam }
411
412	<	TSQLParam = class(TIBSQLData,ISQLParam)
412	>	TSQLParam = class(TIBSQLData,ISQLParam,ISQLData)
413		protected
414		procedure CheckActive; override;
415		procedure Changed; override;
#	Line 376 | Line 432 | type
432		procedure SetAsInt64(AValue: Int64);
433		procedure SetAsDate(AValue: TDateTime);
434		procedure SetAsLong(AValue: Long);
435	<	procedure SetAsTime(AValue: TDateTime);
436	<	procedure SetAsDateTime(AValue: TDateTime);
435	>	procedure SetAsTime(AValue: TDateTime); overload;
436	>	procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
437	>	procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
438	>	procedure SetAsTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
439	>	procedure SetAsTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
440	>	procedure SetAsDateTime(AValue: TDateTime); overload;
441	>	procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
442	>	procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
443		procedure SetAsDouble(AValue: Double);
444		procedure SetAsFloat(AValue: Float);
445		procedure SetAsPointer(AValue: Pointer);
#	Line 387 | Line 449 | type
449		procedure SetAsBlob(aValue: IBlob);
450		procedure SetAsQuad(AValue: TISC_QUAD);
451		procedure SetCharSetID(aValue: cardinal);
452	+	procedure SetAsBcd(aValue: tBCD);
453
454		property AsBlob: IBlob read GetAsBlob write SetAsBlob;
455		property IsNullable: Boolean read GetIsNullable write SetIsNullable;
#	Line 429 | Line 492 | type
492		function getSQLParam(index: integer): ISQLParam;
493		function ByName(Idx: AnsiString): ISQLParam ;
494		function GetModified: Boolean;
495	+	function GetHasCaseSensitiveParams: Boolean;
496		end;
497
498		{ TResults }
#	Line 450 | Line 514 | type
514		function ByName(Idx: AnsiString): ISQLData;
515		function getSQLData(index: integer): ISQLData;
516		procedure GetData(index: integer; var IsNull:boolean; var len: short; var data: PByte);
517	+	function GetStatement: IStatement;
518		function GetTransaction: ITransaction; virtual;
519		procedure SetRetainInterfaces(aValue: boolean);
520		end;
521
522		implementation
523
524	<	uses FBMessages, FBClientAPI, variants, IBUtils, FBTransaction;
460	<
524	>	uses FBMessages, variants, IBUtils, FBTransaction, DateUtils;
525
526		{ TSQLDataArea }
527
#	Line 510 | Line 574 | end;
574
575		procedure TSQLDataArea.PreprocessSQL(sSQL: AnsiString; GenerateParamNames: boolean;
576		var sProcessedSQL: AnsiString);
513	–	var
514	–	cCurChar, cNextChar, cQuoteChar: AnsiChar;
515	–	sParamName: AnsiString;
516	–	j, i, iLenSQL, iSQLPos: Integer;
517	–	iCurState {$ifdef ALLOWDIALECT3PARAMNAMES}, iCurParamState {$endif}: Integer;
518	–	iParamSuffix: Integer;
519	–	slNames: TStrings;
520	–	StrBuffer: PByte;
521	–	found: boolean;
522	–
523	–	const
524	–	DefaultState = 0;
525	–	CommentState = 1;
526	–	QuoteState = 2;
527	–	ParamState = 3;
528	–	ArrayDimState = 4;
529	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
530	–	ParamDefaultState = 0;
531	–	ParamQuoteState = 1;
532	–	{$endif}
533	–
534	–	procedure AddToProcessedSQL(cChar: AnsiChar);
535	–	begin
536	–	StrBuffer[iSQLPos] := byte(cChar);
537	–	Inc(iSQLPos);
538	–	end;
539	–
540	–	begin
541	–	if not IsInputDataArea then
542	–	IBError(ibxeNotPermitted,[nil]);
543	–
544	–	sParamName := '';
545	–	iLenSQL := Length(sSQL);
546	–	GetMem(StrBuffer,iLenSQL + 1);
547	–	slNames := TStringList.Create;
548	–	try
549	–	{ Do some initializations of variables }
550	–	iParamSuffix := 0;
551	–	cQuoteChar := '''';
552	–	i := 1;
553	–	iSQLPos := 0;
554	–	iCurState := DefaultState;
555	–	{$ifdef ALLOWDIALECT3PARAMNAMES}
556	–	iCurParamState := ParamDefaultState;
557	–	{$endif}
558	–	{ Now, traverse through the SQL string, character by character,
559	–	picking out the parameters and formatting correctly for InterBase }
560	–	while (i <= iLenSQL) do begin
561	–	{ Get the current token and a look-ahead }
562	–	cCurChar := sSQL[i];
563	–	if i = iLenSQL then
564	–	cNextChar := #0
565	–	else
566	–	cNextChar := sSQL[i + 1];
567	–	{ Now act based on the current state }
568	–	case iCurState of
569	–	DefaultState:
570	–	begin
571	–	case cCurChar of
572	–	'''', '"':
573	–	begin
574	–	cQuoteChar := cCurChar;
575	–	iCurState := QuoteState;
576	–	end;
577	–	'?', ':':
578	–	begin
579	–	iCurState := ParamState;
580	–	AddToProcessedSQL('?');
581	–	end;
582	–	'/': if (cNextChar = '*') then
583	–	begin
584	–	AddToProcessedSQL(cCurChar);
585	–	Inc(i);
586	–	iCurState := CommentState;
587	–	end;
588	–	'[':
589	–	begin
590	–	AddToProcessedSQL(cCurChar);
591	–	Inc(i);
592	–	iCurState := ArrayDimState;
593	–	end;
594	–	end;
595	–	end;
577
578	<	ArrayDimState:
598	<	begin
599	<	case cCurChar of
600	<	':',',','0'..'9',' ',#9,#10,#13:
601	<	begin
602	<	AddToProcessedSQL(cCurChar);
603	<	Inc(i);
604	<	end;
605	<	else
606	<	begin
607	<	AddToProcessedSQL(cCurChar);
608	<	Inc(i);
609	<	iCurState := DefaultState;
610	<	end;
611	<	end;
612	<	end;
578	>	var slNames: TStrings;
579
580	<	CommentState:
581	<	begin
582	<	if (cNextChar = #0) then
583	<	IBError(ibxeSQLParseError, [SEOFInComment])
584	<	else if (cCurChar = '*') then begin
619	<	if (cNextChar = '/') then
620	<	iCurState := DefaultState;
621	<	end;
622	<	end;
623	<	QuoteState: begin
624	<	if cNextChar = #0 then
625	<	IBError(ibxeSQLParseError, [SEOFInString])
626	<	else if (cCurChar = cQuoteChar) then begin
627	<	if (cNextChar = cQuoteChar) then begin
628	<	AddToProcessedSQL(cCurChar);
629	<	Inc(i);
630	<	end else
631	<	iCurState := DefaultState;
632	<	end;
633	<	end;
634	<	ParamState:
635	<	begin
636	<	{ collect the name of the parameter }
637	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
638	<	if iCurParamState = ParamDefaultState then
639	<	begin
640	<	if cCurChar = '"' then
641	<	iCurParamState := ParamQuoteState
642	<	else
643	<	{$endif}
644	<	if (cCurChar in ['A'..'Z', 'a'..'z', '0'..'9', '_', '$']) then
645	<	sParamName := sParamName + cCurChar
646	<	else if GenerateParamNames then
647	<	begin
648	<	sParamName := 'IBXParam' + IntToStr(iParamSuffix); {do not localize}
649	<	Inc(iParamSuffix);
650	<	iCurState := DefaultState;
651	<	slNames.AddObject(sParamName,self); //Note local convention
652	<	//add pointer to self to mark entry
653	<	sParamName := '';
654	<	end
655	<	else
656	<	IBError(ibxeSQLParseError, [SParamNameExpected]);
657	<	{$ifdef ALLOWDIALECT3PARAMNAMES}
658	<	end
659	<	else begin
660	<	{ determine if Quoted parameter name is finished }
661	<	if cCurChar = '"' then
662	<	begin
663	<	Inc(i);
664	<	slNames.Add(sParamName);
665	<	SParamName := '';
666	<	iCurParamState := ParamDefaultState;
667	<	iCurState := DefaultState;
668	<	end
669	<	else
670	<	sParamName := sParamName + cCurChar
671	<	end;
672	<	{$endif}
673	<	{ determine if the unquoted parameter name is finished }
674	<	if {$ifdef ALLOWDIALECT3PARAMNAMES}(iCurParamState <> ParamQuoteState) and {$endif}
675	<	(iCurState <> DefaultState) then
676	<	begin
677	<	if not (cNextChar in ['A'..'Z', 'a'..'z',
678	<	'0'..'9', '_', '$']) then begin
679	<	Inc(i);
680	<	iCurState := DefaultState;
681	<	slNames.Add(sParamName);
682	<	sParamName := '';
683	<	end;
684	<	end;
685	<	end;
686	<	end;
687	<	if (iCurState <> ParamState) and (i <= iLenSQL) then
688	<	AddToProcessedSQL(sSQL[i]);
689	<	Inc(i);
690	<	end;
691	<	AddToProcessedSQL(#0);
692	<	sProcessedSQL := strpas(PAnsiChar(StrBuffer));
580	>	procedure SetColumnNames(slNames: TStrings);
581	>	var i, j: integer;
582	>	found: boolean;
583	>	begin
584	>	found := false;
585		SetCount(slNames.Count);
586		for i := 0 to slNames.Count - 1 do
587		begin
#	Line 710 | Line 602 | begin
602		Column[i].UniqueName := not found;
603		end;
604		end;
605	+	end;
606	+
607	+	begin
608	+	if not IsInputDataArea then
609	+	IBError(ibxeNotPermitted,[nil]);
610	+
611	+	slNames := TStringList.Create;
612	+	try
613	+	sProcessedSQL := TSQLParamProcessor.Execute(sSQL,GenerateParamNames,slNames);
614	+	SetColumnNames(slNames);
615		finally
616		slNames.Free;
715	–	FreeMem(StrBuffer);
617		end;
618		end;
619
#	Line 726 | Line 627 | var
627		s: AnsiString;
628		i: Integer;
629		begin
630	<	{$ifdef UseCaseInSensitiveParamName}
631	<	s := AnsiUpperCase(Idx);
632	<	{$else}
630	>	if not IsInputDataArea or not CaseSensitiveParams then
631	>	s := AnsiUpperCase(Idx)
632	>	else
633		s := Idx;
634	<	{$endif}
634	>
635		for i := 0 to Count - 1 do
636		if Column[i].Name = s then
637		begin
#	Line 762 | Line 663 | end;
663
664		procedure TSQLVarData.SetName(AValue: AnsiString);
665		begin
666	<	if FName = AValue then Exit;
766	<	{$ifdef UseCaseInSensitiveParamName}
767	<	if Parent.IsInputDataArea then
666	>	if not Parent.IsInputDataArea or not Parent.CaseSensitiveParams then
667		FName := AnsiUpperCase(AValue)
668		else
770	–	{$endif}
669		FName := AValue;
670		end;
671
#	Line 788 | Line 686 | begin
686
687		FVarString := aValue;
688		SQLType := SQL_TEXT;
689	+	Scale := 0;
690		SetSQLData(PByte(PAnsiChar(FVarString)),Length(aValue));
691		end;
692
#	Line 948 | Line 847 | begin
847		result := Value;
848		end;
849
850	+	function TSQLDataItem.GetDateFormatStr(IncludeTime: boolean): AnsiString;
851	+	begin
852	+	{$IF declared(DefaultFormatSettings)}
853	+	with DefaultFormatSettings do
854	+	{$ELSE}
855	+	{$IF declared(FormatSettings)}
856	+	with FormatSettings do
857	+	{$IFEND}
858	+	{$IFEND}
859	+	case GetSQLDialect of
860	+	1:
861	+	if IncludeTime then
862	+	result := ShortDateFormat + ' ' + LongTimeFormat
863	+	else
864	+	result := ShortDateFormat;
865	+	3:
866	+	result := ShortDateFormat;
867	+	end;
868	+	end;
869	+
870	+	function TSQLDataItem.GetTimeFormatStr: AnsiString;
871	+	begin
872	+	{$IF declared(DefaultFormatSettings)}
873	+	with DefaultFormatSettings do
874	+	{$ELSE}
875	+	{$IF declared(FormatSettings)}
876	+	with FormatSettings do
877	+	{$IFEND}
878	+	{$IFEND}
879	+	Result := 'hh' + TimeSeparator + 'nn' + TimeSeparator + 'ss' + '.zzzz';;
880	+	end;
881	+
882	+	function TSQLDataItem.GetTimestampFormatStr: AnsiString;
883	+	begin
884	+	{$IF declared(DefaultFormatSettings)}
885	+	with DefaultFormatSettings do
886	+	{$ELSE}
887	+	{$IF declared(FormatSettings)}
888	+	with FormatSettings do
889	+	{$IFEND}
890	+	{$IFEND}
891	+	Result := ShortDateFormat + ' ' +  'hh' + TimeSeparator + 'nn' + TimeSeparator + 'ss' + '.zzzz';
892	+	end;
893	+
894		procedure TSQLDataItem.SetAsInteger(AValue: Integer);
895		begin
896		SetAsLong(aValue);
897		end;
898
899	+	procedure TSQLDataItem.InternalGetAsDateTime(var aDateTime: TDateTime;
900	+	var dstOffset: smallint; var aTimezone: AnsiString;
901	+	var aTimeZoneID: TFBTimeZoneID);
902	+	begin
903	+	CheckActive;
904	+	aDateTime := 0;
905	+	dstOffset := 0;
906	+	aTimezone := '';
907	+	aTimeZoneID := TimeZoneID_GMT;
908	+	if not IsNull then
909	+	with FFirebirdClientAPI do
910	+	case SQLType of
911	+	SQL_TEXT, SQL_VARYING:
912	+	if not ParseDateTimeTZString(AsString,aDateTime,aTimeZone) then
913	+	IBError(ibxeInvalidDataConversion, [nil]);
914	+	SQL_TYPE_DATE:
915	+	aDateTime := SQLDecodeDate(SQLData);
916	+	SQL_TYPE_TIME:
917	+	aDateTime := SQLDecodeTime(SQLData);
918	+	SQL_TIMESTAMP:
919	+	aDateTime := SQLDecodeDateTime(SQLData);
920	+	SQL_TIMESTAMP_TZ:
921	+	begin
922	+	GetTimeZoneServices.DecodeTimestampTZ(SQLData,aDateTime,dstOffset,aTimeZone);
923	+	aTimeZoneID := PISC_TIMESTAMP_TZ(SQLData)^.time_zone;
924	+	end;
925	+	SQL_TIMESTAMP_TZ_EX:
926	+	begin
927	+	GetTimeZoneServices.DecodeTimestampTZEx(SQLData,aDateTime,dstOffset,aTimeZone);
928	+	aTimeZoneID := PISC_TIMESTAMP_TZ_EX(SQLData)^.time_zone;
929	+	end;
930	+	SQL_TIME_TZ:
931	+	with GetTimeZoneServices do
932	+	begin
933	+	DecodeTimeTZ(SQLData,GetTimeTZDate,aDateTime,dstOffset,aTimeZone);
934	+	aTimeZoneID := PISC_TIME_TZ(SQLData)^.time_zone;
935	+	end;
936	+	SQL_TIME_TZ_EX:
937	+	with GetTimeZoneServices do
938	+	begin
939	+	DecodeTimeTZEx(SQLData,GetTimeTZDate,aDateTime,dstOffset,aTimeZone);
940	+	aTimeZoneID := PISC_TIME_TZ_EX(SQLData)^.time_zone;
941	+	end;
942	+	else
943	+	IBError(ibxeInvalidDataConversion, [nil]);
944	+	end;
945	+	end;
946	+
947		function TSQLDataItem.AdjustScaleFromCurrency(Value: Currency; aScale: Integer
948		): Int64;
949		var
#	Line 1008 | Line 999 | begin
999		//Do nothing by default
1000		end;
1001
1002	+	procedure TSQLDataItem.CheckTZSupport;
1003	+	begin
1004	+	if not FFirebirdClientAPI.HasTimeZoneSupport then
1005	+	IBError(ibxeNoTimezoneSupport,[]);
1006	+	end;
1007	+
1008	+	function TSQLDataItem.GetTimeZoneServices: IExTimeZoneServices;
1009	+	begin
1010	+	if FTimeZoneServices = nil then
1011	+	begin
1012	+	if not GetAttachment.HasTimeZoneSupport then
1013	+	IBError(ibxeNoTimezoneSupport,[]);
1014	+	GetAttachment.GetTimeZoneServices.QueryInterface(IExTimeZoneServices,FTimeZoneServices);
1015	+	end;
1016	+	Result := FTimeZoneServices;
1017	+	end;
1018	+
1019		procedure TSQLDataItem.Changed;
1020		begin
1021		//Do nothing by default
#	Line 1046 | Line 1054 | begin
1054		//Do nothing by default
1055		end;
1056
1057	+	constructor TSQLDataItem.Create(api: TFBClientAPI);
1058	+	begin
1059	+	inherited Create;
1060	+	FFirebirdClientAPI := api;
1061	+	end;
1062	+
1063		function TSQLDataItem.GetSQLTypeName: AnsiString;
1064		begin
1065		Result := GetSQLTypeName(GetSQLType);
#	Line 1062 | Line 1076 | begin
1076		SQL_LONG:             Result := 'SQL_LONG';
1077		SQL_SHORT:            Result := 'SQL_SHORT';
1078		SQL_TIMESTAMP:        Result := 'SQL_TIMESTAMP';
1079	+	SQL_TIMESTAMP_TZ:     Result := 'SQL_TIMESTAMP_TZ';
1080	+	SQL_TIMESTAMP_TZ_EX:  Result := 'SQL_TIMESTAMP_TZ_EX';
1081		SQL_BLOB:             Result := 'SQL_BLOB';
1082		SQL_D_FLOAT:          Result := 'SQL_D_FLOAT';
1083		SQL_ARRAY:            Result := 'SQL_ARRAY';
#	Line 1069 | Line 1085 | begin
1085		SQL_TYPE_TIME:        Result := 'SQL_TYPE_TIME';
1086		SQL_TYPE_DATE:        Result := 'SQL_TYPE_DATE';
1087		SQL_INT64:            Result := 'SQL_INT64';
1088	+	SQL_TIME_TZ:          Result := 'SQL_TIME_TZ';
1089	+	SQL_TIME_TZ_EX:       Result := 'SQL_TIME_TZ_EX';
1090	+	SQL_DEC_FIXED:        Result := 'SQL_DEC_FIXED';
1091	+	SQL_DEC16:            Result := 'SQL_DEC16';
1092	+	SQL_DEC34:            Result := 'SQL_DEC34';
1093	+	SQL_INT128:           Result := 'SQL_INT128';
1094	+	SQL_NULL:             Result := 'SQL_NULL';
1095	+	SQL_BOOLEAN:          Result := 'SQL_BOOLEAN';
1096		end;
1097		end;
1098
1099	+	function TSQLDataItem.GetStrDataLength: short;
1100	+	begin
1101	+	with FFirebirdClientAPI do
1102	+	if SQLType = SQL_VARYING then
1103	+	Result := DecodeInteger(SQLData, 2)
1104	+	else
1105	+	Result := DataLength;
1106	+	end;
1107	+
1108		function TSQLDataItem.GetAsBoolean: boolean;
1109		begin
1110		CheckActive;
#	Line 1112 | Line 1145 | begin
1145		Scale);
1146		SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
1147		result := Trunc(AsDouble);
1148	+
1149	+	SQL_DEC_FIXED,
1150	+	SQL_DEC16,
1151	+	SQL_DEC34,
1152	+	SQL_INT128:
1153	+	if not BCDToCurr(GetAsBCD,Result) then
1154	+	IBError(ibxeInvalidDataConversion, [nil]);
1155	+
1156		else
1157		IBError(ibxeInvalidDataConversion, [nil]);
1158		end;
#	Line 1148 | Line 1189 | begin
1189		end;
1190
1191		function TSQLDataItem.GetAsDateTime: TDateTime;
1192	+	var aTimezone: AnsiString;
1193	+	aTimeZoneID: TFBTimeZoneID;
1194	+	dstOffset: smallint;
1195	+	begin
1196	+	InternalGetAsDateTime(Result,dstOffset,aTimeZone,aTimeZoneID);
1197	+	end;
1198	+
1199	+	procedure TSQLDataItem.GetAsDateTime(var aDateTime: TDateTime;
1200	+	var dstOffset: smallint; var aTimezone: AnsiString);
1201	+	var aTimeZoneID: TFBTimeZoneID;
1202	+	begin
1203	+	InternalGetAsDateTime(aDateTime,dstOffset,aTimeZone,aTimeZoneID);
1204	+	end;
1205	+
1206	+	procedure TSQLDataItem.GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint;
1207	+	var aTimezoneID: TFBTimeZoneID);
1208	+	var aTimezone: AnsiString;
1209	+	begin
1210	+	InternalGetAsDateTime(aDateTime,dstOffset,aTimeZone,aTimeZoneID);
1211	+	end;
1212	+
1213	+	procedure TSQLDataItem.GetAsTime(var aTime: TDateTime; var dstOffset: smallint;
1214	+	var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime);
1215	+	var aTimeZone: AnsiString;
1216		begin
1217		CheckActive;
1218	<	result := 0;
1218	>	aTime := 0;
1219	>	dstOffset := 0;
1220		if not IsNull then
1221	<	with FirebirdClientAPI do
1221	>	with FFirebirdClientAPI do
1222		case SQLType of
1223	<	SQL_TEXT, SQL_VARYING: begin
1224	<	try
1225	<	result := StrToDate(AsString);
1226	<	except
1227	<	on E: EConvertError do IBError(ibxeInvalidDataConversion, [nil]);
1223	>	SQL_TIME_TZ:
1224	>	begin
1225	>	GetTimeZoneServices.DecodeTimeTZ(SQLData,OnDate,aTime,dstOffset,aTimeZone);
1226	>	aTimeZoneID := PISC_TIME_TZ(SQLData)^.time_zone;
1227	>	end;
1228	>	SQL_TIME_TZ_EX:
1229	>	begin
1230	>	GetTimeZoneServices.DecodeTimeTZEx(SQLData,OnDate,aTime,dstOffset,aTimeZone);
1231	>	aTimeZoneID := PISC_TIME_TZ_EX(SQLData)^.time_zone;
1232		end;
1233	+	else
1234	+	IBError(ibxeInvalidDataConversion, [nil]);
1235	+	end;
1236	+	end;
1237	+
1238	+	procedure TSQLDataItem.GetAsTime(var aTime: TDateTime; var dstOffset: smallint;
1239	+	var aTimezone: AnsiString; OnDate: TDateTime);
1240	+	begin
1241	+	CheckActive;
1242	+	aTime := 0;
1243	+	dstOffset := 0;
1244	+	if not IsNull then
1245	+	with FFirebirdClientAPI do
1246	+	case SQLType of
1247	+	SQL_TIME_TZ:
1248	+	GetTimeZoneServices.DecodeTimeTZ(SQLData,OnDate,aTime,dstOffset,aTimeZone);
1249	+	SQL_TIME_TZ_EX:
1250	+	GetTimeZoneServices.DecodeTimeTZEx(SQLData,OnDate,aTime,dstOffset,aTimeZone);
1251	+	else
1252	+	IBError(ibxeInvalidDataConversion, [nil]);
1253	+	end;
1254	+	end;
1255	+
1256	+	procedure TSQLDataItem.GetAsTime(var aTime: TDateTime; var dstOffset: smallint;
1257	+	var aTimezoneID: TFBTimeZoneID);
1258	+	begin
1259	+	GetAsTime(aTime,dstOffset,aTimeZoneID,GetTimeZoneServices.GetTimeTZDate);
1260	+	end;
1261	+
1262	+	procedure TSQLDataItem.GetAsTime(var aTime: TDateTime; var dstOffset: smallint;
1263	+	var aTimezone: AnsiString);
1264	+	begin
1265	+	GetAsTime(aTime,dstOffset,aTimeZone,GetTimeZoneServices.GetTimeTZDate);
1266	+	end;
1267	+
1268	+	function TSQLDataItem.GetAsUTCDateTime: TDateTime;
1269	+	var aTimezone: AnsiString;
1270	+	begin
1271	+	CheckActive;
1272	+	result := 0;
1273	+	aTimezone := '';
1274	+	if not IsNull then
1275	+	with FFirebirdClientAPI do
1276	+	case SQLType of
1277	+	SQL_TEXT, SQL_VARYING:
1278	+	begin
1279	+	if not ParseDateTimeTZString(AsString,Result,aTimeZone) then
1280	+	IBError(ibxeInvalidDataConversion, [nil]);
1281	+	Result := GetTimeZoneServices.LocalTimeToGMT(Result,aTimeZone);
1282		end;
1283		SQL_TYPE_DATE:
1284		result := SQLDecodeDate(SQLData);
1285	<	SQL_TYPE_TIME:
1285	>	SQL_TYPE_TIME,
1286	>	SQL_TIME_TZ,
1287	>	SQL_TIME_TZ_EX:
1288		result := SQLDecodeTime(SQLData);
1289	<	SQL_TIMESTAMP:
1289	>	SQL_TIMESTAMP,
1290	>	SQL_TIMESTAMP_TZ,
1291	>	SQL_TIMESTAMP_TZ_EX:
1292		result := SQLDecodeDateTime(SQLData);
1293		else
1294		IBError(ibxeInvalidDataConversion, [nil]);
1295	<	end;
1295	>	end;
1296		end;
1297
1298		function TSQLDataItem.GetAsDouble: Double;
#	Line 1197 | Line 1320 | begin
1320		result := PFloat(SQLData)^;
1321		SQL_DOUBLE, SQL_D_FLOAT:
1322		result := PDouble(SQLData)^;
1323	+	SQL_DEC_FIXED,
1324	+	SQL_DEC16,
1325	+	SQL_DEC34,
1326	+	SQL_INT128:
1327	+	Result := BCDToDouble(GetAsBCD);
1328		else
1329		IBError(ibxeInvalidDataConversion, [nil]);
1330		end;
#	Line 1242 | Line 1370 | begin
1370		result := Trunc(AdjustScale(PInt64(SQLData)^, Scale));
1371		SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
1372		result := Trunc(AsDouble);
1373	+	SQL_DEC_FIXED,
1374	+	SQL_DEC16,
1375	+	SQL_DEC34,
1376	+	SQL_INT128:
1377	+	Result := BCDToInteger(GetAsBCD);
1378		else
1379	<	IBError(ibxeInvalidDataConversion, [nil]);
1379	>	IBError(ibxeInvalidDataConversion, [GetSQLTypeName]);
1380		end;
1381		end;
1382
#	Line 1281 | Line 1414 | begin
1414		end;
1415		end;
1416
1417	+	{Copied from LazUTF8}
1418	+
1419	+	function UTF8CodepointSizeFull(p: PAnsiChar): integer;
1420	+	const TopBitSetMask   = $80; {%10000000}
1421	+	Top2BitsSetMask = $C0; {%11000000}
1422	+	Top3BitsSetMask = $E0; {%11100000}
1423	+	Top4BitsSetMask = $F0; {%11110000}
1424	+	Top5BitsSetMask = $F8; {%11111000}
1425	+	begin
1426	+	case p^ of
1427	+	#0..#191: // %11000000
1428	+	// regular single byte character (#0 is a character, this is Pascal ;)
1429	+	Result:=1;
1430	+	#192..#223: // p^ and %11100000 = %11000000
1431	+	begin
1432	+	// could be 2 byte character
1433	+	if (ord(p[1]) and Top2BitsSetMask) = TopBitSetMask then
1434	+	Result:=2
1435	+	else
1436	+	Result:=1;
1437	+	end;
1438	+	#224..#239: // p^ and %11110000 = %11100000
1439	+	begin
1440	+	// could be 3 byte character
1441	+	if ((ord(p[1]) and Top2BitsSetMask) = TopBitSetMask)
1442	+	and ((ord(p[2]) and Top2BitsSetMask) = TopBitSetMask) then
1443	+	Result:=3
1444	+	else
1445	+	Result:=1;
1446	+	end;
1447	+	#240..#247: // p^ and %11111000 = %11110000
1448	+	begin
1449	+	// could be 4 byte character
1450	+	if ((ord(p[1]) and Top2BitsSetMask) = TopBitSetMask)
1451	+	and ((ord(p[2]) and Top2BitsSetMask) = TopBitSetMask)
1452	+	and ((ord(p[3]) and Top2BitsSetMask) = TopBitSetMask) then
1453	+	Result:=4
1454	+	else
1455	+	Result:=1;
1456	+	end;
1457	+	else
1458	+	Result:=1;
1459	+	end;
1460	+	end;
1461	+
1462	+	{Returns the byte length of a UTF8 string with a fixed charwidth}
1463	+
1464	+	function GetStrLen(p: PAnsiChar; FieldWidth, MaxDataLength: cardinal): integer;
1465	+	var i: integer;
1466	+	cplen: integer;
1467	+	s: AnsiString;
1468	+	begin
1469	+	Result := 0;
1470	+	s := strpas(p);
1471	+	for i := 1 to FieldWidth do
1472	+	begin
1473	+	cplen := UTF8CodepointSizeFull(p);
1474	+	Inc(p,cplen);
1475	+	Inc(Result,cplen);
1476	+	if Result >= MaxDataLength then
1477	+	begin
1478	+	Result := MaxDataLength;
1479	+	Exit;
1480	+	end;
1481	+	end;
1482	+	end;
1483
1484		function TSQLDataItem.GetAsString: AnsiString;
1485		var
1486		sz: PByte;
1487		str_len: Integer;
1488		rs: RawByteString;
1489	+	aTimeZone: AnsiString;
1490	+	aDateTime: TDateTime;
1491	+	dstOffset: smallint;
1492		begin
1493		CheckActive;
1494		result := '';
1495		{ Check null, if so return a default string }
1496		if not IsNull then
1497	<	with FirebirdClientAPI do
1497	>	with FFirebirdClientAPI do
1498		case SQLType of
1499		SQL_BOOLEAN:
1500		if AsBoolean then
#	Line 1304 | Line 1506 | begin
1506		begin
1507		sz := SQLData;
1508		if (SQLType = SQL_TEXT) then
1509	<	str_len := DataLength
1509	>	begin
1510	>	if GetCodePage = cp_utf8 then
1511	>	str_len := GetStrLen(PAnsiChar(sz),GetSize div GetCharSetWidth,DataLength)
1512	>	else
1513	>	str_len := DataLength
1514	>	end
1515		else begin
1516	<	str_len := DecodeInteger(SQLData, 2);
1516	>	str_len := DecodeInteger(sz, 2);
1517		Inc(sz, 2);
1518		end;
1519		SetString(rs, PAnsiChar(sz), str_len);
1520		SetCodePage(rs,GetCodePage,false);
1521	<	if (SQLType = SQL_TEXT) and (GetCharSetID <> 1) then
1315	<	Result := TrimRight(rs)
1316	<	else
1317	<	Result := rs
1521	>	Result := rs;
1522		end;
1523	+
1524		SQL_TYPE_DATE:
1525	<	case GetSQLDialect of
1321	<	1 : result := DateTimeToStr(AsDateTime);
1322	<	3 : result := DateToStr(AsDateTime);
1323	<	end;
1324	<	SQL_TYPE_TIME :
1325	<	result := TimeToStr(AsDateTime);
1525	>	Result := DateToStr(GetAsDateTime);
1526		SQL_TIMESTAMP:
1527	<	{$IF declared(DefaultFormatSettings)}
1528	<	with DefaultFormatSettings do
1529	<	{$ELSE}
1530	<	{$IF declared(FormatSettings)}
1531	<	with FormatSettings do
1532	<	{$IFEND}
1533	<	{$IFEND}
1534	<	result := FormatDateTime(ShortDateFormat + ' ' +
1535	<	LongTimeFormat+'.zzz',AsDateTime);
1527	>	Result := FBFormatDateTime(GetTimestampFormatStr,GetAsDateTime);
1528	>	SQL_TYPE_TIME:
1529	>	Result := FBFormatDateTime(GetTimeFormatStr,GetAsDateTime);
1530	>	SQL_TIMESTAMP_TZ,
1531	>	SQL_TIMESTAMP_TZ_EX:
1532	>	with GetAttachment.GetTimeZoneServices do
1533	>	begin
1534	>	if GetTZTextOption = tzGMT then
1535	>	Result := FBFormatDateTime(GetTimestampFormatStr,GetAsUTCDateTime)
1536	>	else
1537	>	begin
1538	>	GetAsDateTime(aDateTime,dstOffset,aTimeZone);
1539	>	if GetTZTextOption = tzOffset then
1540	>	Result := FBFormatDateTime(GetTimestampFormatStr,aDateTime) + ' ' + FormatTimeZoneOffset(dstOffset)
1541	>	else
1542	>	Result := FBFormatDateTime(GetTimestampFormatStr,aDateTime) + ' ' + aTimeZone;
1543	>	end;
1544	>	end;
1545	>	SQL_TIME_TZ,
1546	>	SQL_TIME_TZ_EX:
1547	>	with GetAttachment.GetTimeZoneServices do
1548	>	begin
1549	>	if GetTZTextOption = tzGMT then
1550	>	Result := FBFormatDateTime(GetTimeFormatStr,GetAsUTCDateTime)
1551	>	else
1552	>	begin
1553	>	GetAsTime(aDateTime,dstOffset,aTimeZone,GetTimeTZDate);
1554	>	if GetTZTextOption = tzOffset then
1555	>	Result := FBFormatDateTime(GetTimeFormatStr,aDateTime) + ' ' + FormatTimeZoneOffset(dstOffset)
1556	>	else
1557	>	Result := FBFormatDateTime(GetTimeFormatStr,aDateTime) + ' ' + aTimeZone;
1558	>	end;
1559	>	end;
1560	>
1561		SQL_SHORT, SQL_LONG:
1562		if Scale = 0 then
1563		result := IntToStr(AsLong)
#	Line 1349 | Line 1574 | begin
1574		result := FloatToStr(AsDouble);
1575		SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
1576		result := FloatToStr(AsDouble);
1577	+
1578	+	SQL_DEC16,
1579	+	SQL_DEC34:
1580	+	result := BCDToStr(GetAsBCD);
1581	+
1582	+	SQL_DEC_FIXED,
1583	+	SQL_INT128:
1584	+	result := Int128ToStr(SQLData,scale);
1585	+
1586		else
1587		IBError(ibxeInvalidDataConversion, [nil]);
1588		end;
#	Line 1360 | Line 1594 | begin
1594		Result := false;
1595		end;
1596
1597	<	function TSQLDataItem.getIsNullable: boolean;
1597	>	function TSQLDataItem.GetIsNullable: boolean;
1598		begin
1599		CheckActive;
1600		Result := false;
1601		end;
1602
1603		function TSQLDataItem.GetAsVariant: Variant;
1604	+	var ts: TDateTime;
1605	+	dstOffset: smallint;
1606	+	timezone: AnsiString;
1607		begin
1608		CheckActive;
1609		if IsNull then
#	Line 1380 | Line 1617 | begin
1617		result := AsString;
1618		SQL_TIMESTAMP, SQL_TYPE_DATE, SQL_TYPE_TIME:
1619		result := AsDateTime;
1620	+	SQL_TIMESTAMP_TZ,
1621	+	SQL_TIME_TZ,
1622	+	SQL_TIMESTAMP_TZ_EX,
1623	+	SQL_TIME_TZ_EX:
1624	+	begin
1625	+	GetAsDateTime(ts,dstOffset,timezone);
1626	+	result := VarArrayOf([ts,dstOffset,timezone]);
1627	+	end;
1628		SQL_SHORT, SQL_LONG:
1629		if Scale = 0 then
1630		result := AsLong
#	Line 1398 | Line 1643 | begin
1643		result := AsDouble;
1644		SQL_BOOLEAN:
1645		result := AsBoolean;
1646	+	SQL_DEC_FIXED,
1647	+	SQL_DEC16,
1648	+	SQL_DEC34,
1649	+	SQL_INT128:
1650	+	result := VarFmtBCDCreate(GetAsBcd);
1651		else
1652		IBError(ibxeInvalidDataConversion, [nil]);
1653		end;
#	Line 1408 | Line 1658 | begin
1658		Result := false;
1659		end;
1660
1661	+	function TSQLDataItem.GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats
1662	+	): integer;
1663	+	begin
1664	+	case DateTimeFormat of
1665	+	dfTimestamp:
1666	+	Result := Length(GetTimestampFormatStr);
1667	+	dfDateTime:
1668	+	Result := Length(GetDateFormatStr(true));
1669	+	dfTime:
1670	+	Result := Length(GetTimeFormatStr);
1671	+	dfTimestampTZ:
1672	+	Result := Length(GetTimestampFormatStr) + 6; {assume time offset format}
1673	+	dfTimeTZ:
1674	+	Result := Length(GetTimeFormatStr)+ 6;
1675	+	else
1676	+	Result := 0;
1677	+	end;end;
1678	+
1679	+	function TSQLDataItem.GetAsBCD: tBCD;
1680	+
1681	+	begin
1682	+	CheckActive;
1683	+	if IsNull then
1684	+	with Result do
1685	+	begin
1686	+	FillChar(Result,sizeof(Result),0);
1687	+	Precision := 1;
1688	+	exit;
1689	+	end;
1690	+
1691	+	case SQLType of
1692	+	SQL_DEC16,
1693	+	SQL_DEC34:
1694	+	with FFirebirdClientAPI do
1695	+	Result := SQLDecFloatDecode(SQLType,  SQLData);
1696	+
1697	+	SQL_DEC_FIXED,
1698	+	SQL_INT128:
1699	+	with FFirebirdClientAPI do
1700	+	Result := StrToBCD(Int128ToStr(SQLData,scale));
1701	+	else
1702	+	if not CurrToBCD(GetAsCurrency,Result) then
1703	+	IBError(ibxeBadBCDConversion,[]);
1704	+	end;
1705	+	end;
1706	+
1707
1708		procedure TSQLDataItem.SetIsNull(Value: Boolean);
1709		begin
#	Line 1471 | Line 1767 | begin
1767
1768		SQLType := SQL_TYPE_DATE;
1769		DataLength := SizeOf(ISC_DATE);
1770	<	with FirebirdClientAPI do
1770	>	with FFirebirdClientAPI do
1771		SQLEncodeDate(Value,SQLData);
1772		Changed;
1773		end;
#	Line 1491 | Line 1787 | begin
1787
1788		SQLType := SQL_TYPE_TIME;
1789		DataLength := SizeOf(ISC_TIME);
1790	<	with FirebirdClientAPI do
1790	>	with FFirebirdClientAPI do
1791		SQLEncodeTime(Value,SQLData);
1792		Changed;
1793		end;
1794
1795	+	procedure TSQLDataItem.SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID);
1796	+	begin
1797	+	CheckActive;
1798	+	CheckTZSupport;
1799	+	if GetSQLDialect < 3 then
1800	+	begin
1801	+	AsDateTime := aValue;
1802	+	exit;
1803	+	end;
1804	+
1805	+	Changing;
1806	+	if IsNullable then
1807	+	IsNull := False;
1808	+
1809	+	SQLType := SQL_TIME_TZ;
1810	+	DataLength := SizeOf(ISC_TIME_TZ);
1811	+	GetTimeZoneServices.EncodeTimeTZ(aValue, aTimeZoneID,OnDate,SQLData);
1812	+	Changed;
1813	+	end;
1814	+
1815	+	procedure TSQLDataItem.SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString);
1816	+	begin
1817	+	CheckActive;
1818	+	CheckTZSupport;
1819	+	if GetSQLDialect < 3 then
1820	+	begin
1821	+	AsDateTime := aValue;
1822	+	exit;
1823	+	end;
1824	+
1825	+	Changing;
1826	+	if IsNullable then
1827	+	IsNull := False;
1828	+
1829	+	SQLType := SQL_TIME_TZ;
1830	+	DataLength := SizeOf(ISC_TIME_TZ);
1831	+	GetTimeZoneServices.EncodeTimeTZ(aValue, aTimeZone,OnDate,SQLData);
1832	+	Changed;
1833	+	end;
1834	+
1835		procedure TSQLDataItem.SetAsDateTime(Value: TDateTime);
1836		begin
1837		CheckActive;
#	Line 1505 | Line 1841 | begin
1841		Changing;
1842		SQLType := SQL_TIMESTAMP;
1843		DataLength := SizeOf(ISC_TIME) + sizeof(ISC_DATE);
1844	<	with FirebirdClientAPI do
1844	>	with FFirebirdClientAPI do
1845		SQLEncodeDateTime(Value,SQLData);
1846		Changed;
1847		end;
1848
1849	+	procedure TSQLDataItem.SetAsDateTime(aValue: TDateTime;
1850	+	aTimeZoneID: TFBTimeZoneID);
1851	+	begin
1852	+	CheckActive;
1853	+	CheckTZSupport;
1854	+	if IsNullable then
1855	+	IsNull := False;
1856	+
1857	+	Changing;
1858	+	SQLType := SQL_TIMESTAMP_TZ;
1859	+	DataLength := SizeOf(ISC_TIMESTAMP_TZ);
1860	+	GetTimeZoneServices.EncodeTimestampTZ(aValue,aTimeZoneID,SQLData);
1861	+	Changed;
1862	+	end;
1863	+
1864	+	procedure TSQLDataItem.SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString
1865	+	);
1866	+	begin
1867	+	CheckActive;
1868	+	CheckTZSupport;
1869	+	if IsNullable then
1870	+	IsNull := False;
1871	+
1872	+	Changing;
1873	+	SQLType := SQL_TIMESTAMP_TZ;
1874	+	DataLength := SizeOf(ISC_TIMESTAMP_TZ);
1875	+	GetTimeZoneServices.EncodeTimestampTZ(aValue,aTimeZone,SQLData);
1876	+	Changed;
1877	+	end;
1878	+
1879	+	procedure TSQLDataItem.SetAsUTCDateTime(aUTCTime: TDateTime);
1880	+	begin
1881	+	SetAsDateTime(aUTCTime,TimeZoneID_GMT);
1882	+	end;
1883	+
1884		procedure TSQLDataItem.SetAsDouble(Value: Double);
1885		begin
1886		CheckActive;
#	Line 1605 | Line 1976 | begin
1976		CheckActive;
1977		if VarIsNull(Value) then
1978		IsNull := True
1979	+	else
1980	+	if VarIsArray(Value) then {must be datetime plus timezone}
1981	+	SetAsDateTime(Value[0],AnsiString(Value[1]))
1982		else case VarType(Value) of
1983		varEmpty, varNull:
1984		IsNull := True;
#	Line 1627 | Line 2001 | begin
2001		IBError(ibxeNotSupported, [nil]);
2002		varByRef, varDispatch, varError, varUnknown, varVariant:
2003		IBError(ibxeNotPermitted, [nil]);
2004	+	else
2005	+	if VarIsFmtBCD(Value) then
2006	+	SetAsBCD(VarToBCD(Value))
2007	+	else
2008	+	IBError(ibxeNotSupported, [nil]);
2009		end;
2010		end;
2011
#	Line 1644 | Line 2023 | begin
2023		Changed;
2024		end;
2025
2026	+	procedure TSQLDataItem.SetAsBcd(aValue: tBCD);
2027	+	var C: Currency;
2028	+	begin
2029	+	CheckActive;
2030	+	Changing;
2031	+	if IsNullable then
2032	+	IsNull := False;
2033	+
2034	+
2035	+	with FFirebirdClientAPI do
2036	+	if aValue.Precision <= 16 then
2037	+	begin
2038	+	if not HasDecFloatSupport then
2039	+	IBError(ibxeDecFloatNotSupported,[]);
2040	+
2041	+	SQLType := SQL_DEC16;
2042	+	DataLength := 8;
2043	+	SQLDecFloatEncode(aValue,SQLType,SQLData);
2044	+	end
2045	+	else
2046	+	if aValue.Precision <= 34 then
2047	+	begin
2048	+	if not HasDecFloatSupport then
2049	+	IBError(ibxeDecFloatNotSupported,[]);
2050	+
2051	+	SQLType := SQL_DEC34;
2052	+	DataLength := 16;
2053	+	SQLDecFloatEncode(aValue,SQLType,SQLData);
2054	+	end
2055	+	else
2056	+	if aValue.Precision <= 38 then
2057	+	begin
2058	+	if not HasInt128Support then
2059	+	IBError(ibxeInt128NotSupported,[]);
2060	+
2061	+	SQLType := SQL_INT128;
2062	+	DataLength := 16;
2063	+	StrToInt128(scale,BcdToStr(aValue),SQLData);
2064	+	end
2065	+	else
2066	+	IBError(ibxeBCDOverflow,[BCDToStr(aValue)]);
2067	+
2068	+	Changed;
2069	+	end;
2070	+
2071		procedure TSQLDataItem.SetAsBoolean(AValue: boolean);
2072		begin
2073		CheckActive;
#	Line 1674 | Line 2098 | begin
2098		IBError(ibxeStatementNotPrepared, [nil]);
2099		end;
2100
2101	+	function TColumnMetaData.GetAttachment: IAttachment;
2102	+	begin
2103	+	Result := GetStatement.GetAttachment;
2104	+	end;
2105	+
2106		function TColumnMetaData.SQLData: PByte;
2107		begin
2108		Result := FIBXSQLVAR.SQLData;
#	Line 1691 | Line 2120 | end;
2120
2121		constructor TColumnMetaData.Create(aOwner: IUnknown; aIBXSQLVAR: TSQLVarData);
2122		begin
2123	<	inherited Create;
2123	>	inherited Create(aIBXSQLVAR.GetStatement.GetAttachment.getFirebirdAPI as TFBClientAPI);
2124		FIBXSQLVAR := aIBXSQLVAR;
2125		FOwner := aOwner;
2126		FPrepareSeqNo := FIBXSQLVAR.Parent.PrepareSeqNo;
#	Line 1778 | Line 2207 | end;
2207		function TColumnMetaData.GetSize: cardinal;
2208		begin
2209		CheckActive;
2210	<	result := FIBXSQLVAR.DataLength;
2210	>	result := FIBXSQLVAR.GetSize;
2211	>	end;
2212	>
2213	>	function TColumnMetaData.GetCharSetWidth: integer;
2214	>	begin
2215	>	CheckActive;
2216	>	result := FIBXSQLVAR.GetCharSetWidth;
2217		end;
2218
2219		function TColumnMetaData.GetArrayMetaData: IArrayMetaData;
#	Line 1793 | Line 2228 | begin
2228		result := FIBXSQLVAR.GetBlobMetaData;
2229		end;
2230
2231	+	function TColumnMetaData.GetStatement: IStatement;
2232	+	begin
2233	+	Result := FIBXSQLVAR.GetStatement;
2234	+	end;
2235	+
2236	+	function TColumnMetaData.GetTransaction: ITransaction;
2237	+	begin
2238	+	Result := GetStatement.GetTransaction;
2239	+	end;
2240	+
2241		{ TIBSQLData }
2242
2243		procedure TIBSQLData.CheckActive;
#	Line 1812 | Line 2257 | begin
2257		IBError(ibxeBOF,[nil]);
2258		end;
2259
2260	+	function TIBSQLData.GetTransaction: ITransaction;
2261	+	begin
2262	+	if FTransaction = nil then
2263	+	Result := inherited GetTransaction
2264	+	else
2265	+	Result := FTransaction;
2266	+	end;
2267	+
2268		function TIBSQLData.GetIsNull: Boolean;
2269		begin
2270		CheckActive;
#	Line 1855 | Line 2308 | end;
2308		{ TSQLParam }
2309
2310		procedure TSQLParam.InternalSetAsString(Value: AnsiString);
2311	+
2312	+	procedure DoSetString;
2313	+	begin
2314	+	Changing;
2315	+	FIBXSQLVar.SetString(Transliterate(Value,GetCodePage));
2316	+	Changed;
2317	+	end;
2318	+
2319		var b: IBlob;
2320		dt: TDateTime;
2321	+	CurrValue: Currency;
2322	+	FloatValue: single;
2323	+	timezone: AnsiString;
2324		begin
2325		CheckActive;
2326		if IsNullable then
2327		IsNull := False;
2328	+	with FFirebirdClientAPI do
2329		case SQLTYPE of
2330		SQL_BOOLEAN:
2331		if AnsiCompareText(Value,STrue) = 0 then
#	Line 1882 | Line 2347 | begin
2347
2348		SQL_VARYING,
2349		SQL_TEXT:
2350	<	begin
1886	<	Changing;
1887	<	FIBXSQLVar.SetString(Transliterate(Value,GetCodePage));
1888	<	Changed;
1889	<	end;
2350	>	DoSetString;
2351
2352		SQL_SHORT,
2353		SQL_LONG,
2354		SQL_INT64:
2355	<	SetAsNumeric(AdjustScaleFromCurrency(StrToCurr(Value),GetScale),GetScale);
2355	>	if TryStrToCurr(Value,CurrValue) then
2356	>	SetAsNumeric(AdjustScaleFromCurrency(CurrValue,GetScale),GetScale)
2357	>	else
2358	>	DoSetString;
2359
2360		SQL_D_FLOAT,
2361		SQL_DOUBLE,
2362		SQL_FLOAT:
2363	<	SetAsDouble(StrToFloat(Value));
2363	>	if TryStrToFloat(Value,FloatValue) then
2364	>	SetAsDouble(FloatValue)
2365	>	else
2366	>	DoSetString;
2367
2368		SQL_TIMESTAMP:
2369		if TryStrToDateTime(Value,dt) then
2370		SetAsDateTime(dt)
2371		else
2372	<	FIBXSQLVar.SetString(Value);
2372	>	DoSetString;
2373
2374		SQL_TYPE_DATE:
2375		if TryStrToDateTime(Value,dt) then
2376		SetAsDate(dt)
2377		else
2378	<	FIBXSQLVar.SetString(Value);
2378	>	DoSetString;
2379
2380		SQL_TYPE_TIME:
2381		if TryStrToDateTime(Value,dt) then
2382		SetAsTime(dt)
2383		else
2384	<	FIBXSQLVar.SetString(Value);
2384	>	DoSetString;
2385	>
2386	>	SQL_TIMESTAMP_TZ:
2387	>	if ParseDateTimeTZString(value,dt,timezone) then
2388	>	SetAsDateTime(dt,timezone)
2389	>	else
2390	>	DoSetString;
2391	>
2392	>	SQL_TIME_TZ:
2393	>	if ParseDateTimeTZString(value,dt,timezone,true) then
2394	>	SetAsTime(dt,GetAttachment.GetTimeZoneServices.GetTimeTZDate,timezone)
2395	>	else
2396	>	DoSetString;
2397	>
2398	>	SQL_DEC_FIXED,
2399	>	SQL_DEC16,
2400	>	SQL_DEC34,
2401	>	SQL_INT128:
2402	>	SetAsBCD(StrToBCD(Value));
2403
2404		else
2405		IBError(ibxeInvalidDataConversion,[nil]);
#	Line 2159 | Line 2644 | begin
2644		end;
2645		end;
2646
2647	+	procedure TSQLParam.SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID);
2648	+	var i: integer;
2649	+	OldSQLVar: TSQLVarData;
2650	+	begin
2651	+	if FIBXSQLVAR.UniqueName then
2652	+	inherited SetAsTime(AValue,OnDate, aTimeZoneID)
2653	+	else
2654	+	with FIBXSQLVAR.Parent do
2655	+	begin
2656	+	for i := 0 to Count - 1 do
2657	+	if Column[i].Name = Name then
2658	+	begin
2659	+	OldSQLVar := FIBXSQLVAR;
2660	+	FIBXSQLVAR := Column[i];
2661	+	try
2662	+	inherited SetAsTime(AValue,OnDate, aTimeZoneID);
2663	+	finally
2664	+	FIBXSQLVAR := OldSQLVar;
2665	+	end;
2666	+	end;
2667	+	end;
2668	+	end;
2669	+
2670	+	procedure TSQLParam.SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString);
2671	+	var i: integer;
2672	+	OldSQLVar: TSQLVarData;
2673	+	begin
2674	+	if FIBXSQLVAR.UniqueName then
2675	+	inherited SetAsTime(AValue,OnDate,aTimeZone)
2676	+	else
2677	+	with FIBXSQLVAR.Parent do
2678	+	begin
2679	+	for i := 0 to Count - 1 do
2680	+	if Column[i].Name = Name then
2681	+	begin
2682	+	OldSQLVar := FIBXSQLVAR;
2683	+	FIBXSQLVAR := Column[i];
2684	+	try
2685	+	inherited SetAsTime(AValue,OnDate,aTimeZone);
2686	+	finally
2687	+	FIBXSQLVAR := OldSQLVar;
2688	+	end;
2689	+	end;
2690	+	end;
2691	+	end;
2692	+
2693	+	procedure TSQLParam.SetAsTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID);
2694	+	begin
2695	+	SetAsTime(aValue,GetTimeZoneServices.GetTimeTZDate,aTimeZoneID);
2696	+	end;
2697	+
2698	+	procedure TSQLParam.SetAsTime(aValue: TDateTime; aTimeZone: AnsiString);
2699	+	begin
2700	+	SetAsTime(aValue,GetTimeZoneServices.GetTimeTZDate,aTimeZone);
2701	+	end;
2702	+
2703		procedure TSQLParam.SetAsDateTime(AValue: TDateTime);
2704		var i: integer;
2705		OldSQLVar: TSQLVarData;
#	Line 2182 | Line 2723 | begin
2723		end;
2724		end;
2725
2726	+	procedure TSQLParam.SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID
2727	+	);
2728	+	var i: integer;
2729	+	OldSQLVar: TSQLVarData;
2730	+	begin
2731	+	if FIBXSQLVAR.UniqueName then
2732	+	inherited SetAsDateTime(AValue,aTimeZoneID)
2733	+	else
2734	+	with FIBXSQLVAR.Parent do
2735	+	begin
2736	+	for i := 0 to Count - 1 do
2737	+	if Column[i].Name = Name then
2738	+	begin
2739	+	OldSQLVar := FIBXSQLVAR;
2740	+	FIBXSQLVAR := Column[i];
2741	+	try
2742	+	inherited SetAsDateTime(AValue,aTimeZoneID);
2743	+	finally
2744	+	FIBXSQLVAR := OldSQLVar;
2745	+	end;
2746	+	end;
2747	+	end;
2748	+	end;
2749	+
2750	+	procedure TSQLParam.SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString);
2751	+	var i: integer;
2752	+	OldSQLVar: TSQLVarData;
2753	+	begin
2754	+	if FIBXSQLVAR.UniqueName then
2755	+	inherited SetAsDateTime(AValue,aTimeZone)
2756	+	else
2757	+	with FIBXSQLVAR.Parent do
2758	+	begin
2759	+	for i := 0 to Count - 1 do
2760	+	if Column[i].Name = Name then
2761	+	begin
2762	+	OldSQLVar := FIBXSQLVAR;
2763	+	FIBXSQLVAR := Column[i];
2764	+	try
2765	+	inherited SetAsDateTime(AValue,aTimeZone);
2766	+	finally
2767	+	FIBXSQLVAR := OldSQLVar;
2768	+	end;
2769	+	end;
2770	+	end;
2771	+	end;
2772	+
2773		procedure TSQLParam.SetAsDouble(AValue: Double);
2774		var i: integer;
2775		OldSQLVar: TSQLVarData;
#	Line 2362 | Line 2950 | begin
2950		FIBXSQLVAR.SetCharSetID(aValue);
2951		end;
2952
2953	+	procedure TSQLParam.SetAsBcd(aValue: tBCD);
2954	+	var i: integer;
2955	+	OldSQLVar: TSQLVarData;
2956	+	begin
2957	+	if FIBXSQLVAR.UniqueName then
2958	+	inherited SetAsBcd(AValue)
2959	+	else
2960	+	with FIBXSQLVAR.Parent do
2961	+	begin
2962	+	for i := 0 to Count - 1 do
2963	+	if Column[i].Name = Name then
2964	+	begin
2965	+	OldSQLVar := FIBXSQLVAR;
2966	+	FIBXSQLVAR := Column[i];
2967	+	try
2968	+	inherited SetAsBcd(AValue);
2969	+	finally
2970	+	FIBXSQLVAR := OldSQLVar;
2971	+	end;
2972	+	end;
2973	+	end;
2974	+	end;
2975	+
2976		{ TMetaData }
2977
2978		procedure TMetaData.CheckActive;
#	Line 2500 | Line 3111 | begin
3111		end;
3112		end;
3113
3114	+	function TSQLParams.GetHasCaseSensitiveParams: Boolean;
3115	+	begin
3116	+	Result := FSQLParams.CaseSensitiveParams;
3117	+	end;
3118	+
3119		{ TResults }
3120
3121		procedure TResults.CheckActive;
#	Line 2512 | Line 3128 | begin
3128		if not FResults.CheckStatementStatus(ssPrepared)  then
3129		IBError(ibxeStatementNotPrepared, [nil]);
3130
3131	<	with GetTransaction as TFBTransaction do
3131	>	with GetTransaction do
3132		if not InTransaction or (FResults.TransactionSeqNo <> FTransactionSeqNo) then
3133		IBError(ibxeInterfaceOutofDate,[nil]);
3134		end;
3135
3136		function TResults.GetISQLData(aIBXSQLVAR: TSQLVarData): ISQLData;
3137	+	var col: TIBSQLData;
3138		begin
3139		if (aIBXSQLVAR.Index < 0) or (aIBXSQLVAR.Index >= getCount) then
3140		IBError(ibxeInvalidColumnIndex,[nil]);
3141
3142		if not HasInterface(aIBXSQLVAR.Index) then
3143		AddInterface(aIBXSQLVAR.Index, TIBSQLData.Create(self,aIBXSQLVAR));
3144	<	Result := TIBSQLData(GetInterface(aIBXSQLVAR.Index));
3144	>	col := TIBSQLData(GetInterface(aIBXSQLVAR.Index));
3145	>	col.FTransaction := GetTransaction;
3146	>	Result := col;
3147		end;
3148
3149		constructor TResults.Create(aResults: TSQLDataArea);
#	Line 2581 | Line 3200 | begin
3200		FResults.GetData(index,IsNull, len,data);
3201		end;
3202
3203	+	function TResults.GetStatement: IStatement;
3204	+	begin
3205	+	Result := FStatement;
3206	+	end;
3207	+
3208		function TResults.GetTransaction: ITransaction;
3209		begin
3210		Result := FStatement.GetTransaction;

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