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tony |
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(*
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* IBX For Lazarus (Firebird Express)
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*
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* The contents of this file are subject to the Initial Developer's
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* Public License Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy
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* of the License here:
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*
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Initial Developer of the Original Code is Tony Whyman.
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*
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* The Original Code is (C) 2017 Tony Whyman, MWA Software
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* (http://www.mwasoftware.co.uk).
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*
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* All Rights Reserved.
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*
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* Contributor(s): ______________________________________.
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*
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*)
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unit IBDataOutput;
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{$mode objfpc}{$H+}
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{$codepage UTF8}
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(*
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These are helper components, primarily for use with TIBXScript, but which are
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also used by TIBExtact (for formatting data as SQL Insert statements). Their
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purpose is to execute SQL SELECT statements and to format the results of the
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query. Data Output Formatters are currently available for:
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Block Format Output (TIBBlockFormatOut)
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CSV Format (TIBCSVDataOut)
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SQL Insert Statements (TIBInsertStmtsOut).
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*)
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interface
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uses
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Classes, SysUtils, IBSQL, IBDatabase, IB;
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const
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MaxBlobText = 80;
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sTimeStampFormat = 'yyyy.mm.dd hh:nn:ss.zzz';
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sDateFormat = 'yyyy.mm.dd';
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sTimeFormat = 'hh:nn:ss.zzz';
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type
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TPlanOptions = (poNoPlan,poIncludePlan, poPlanOnly);
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TAdd2Log = procedure(const Msg: string; IsError: boolean=true) of object;
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TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
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tony |
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{ TIBCustomDataOutput }
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TIBCustomDataOutput = class(TComponent)
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private
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FDateFormat: string;
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FIBSQL: TIBSQL;
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FIncludeHeader: Boolean;
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FOnFormatTextString: TOnFormatTextString;
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FPlanOptions: TPlanOptions;
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FRowCount: integer;
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FShowPerformanceStats: boolean;
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FTimeFormat: string;
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FTimestampFormat: string;
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function GetDatabase: TIBDatabase;
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function GetTransaction: TIBTransaction;
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procedure SetDatabase(AValue: TIBDatabase);
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procedure SetTransaction(AValue: TIBTransaction);
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protected
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procedure HeaderOut(Add2Log: TAdd2Log); virtual;
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procedure FormattedDataOut(Add2Log: TAdd2Log); virtual; abstract;
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procedure TrailerOut(Add2Log: TAdd2Log); virtual;
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function FormatTimestamp(aValue: ISQLData): string;
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function FormatDate(aValue: ISQLData): string;
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function FormatTime(aValue: ISQLData): string;
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function FormatTextString(aValue: string): string;
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property IncludeHeader: Boolean read FIncludeHeader write FIncludeHeader default true;
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property OnFormatTextString: TOnFormatTextString read FOnFormatTextString write FOnFormatTextString;
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public
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constructor Create(aOwner: TComponent); override;
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procedure Assign(Source: TPersistent); override;
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function DataOut(SelectQuery: string; Add2Log: TAdd2Log): boolean;
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procedure SetCommand(command, aValue, stmt: string; var Done: boolean); virtual;
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class procedure ShowPerfStats(Statement: IStatement; Add2Log: TAdd2Log);
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published
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property Database: TIBDatabase read GetDatabase write SetDatabase;
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property Transaction: TIBTransaction read GetTransaction write SetTransaction;
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property PlanOptions: TPlanOptions read FPlanOptions write FPlanOptions;
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property RowCount: integer read FRowCount write FRowCount;
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property ShowPerformanceStats: boolean read FShowPerformanceStats write FShowPerformanceStats;
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property TimestampFormat: string read FTimestampFormat write FTimestampFormat;
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property DateFormat: string read FDateFormat write FDateFormat;
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property TimeFormat: string read FTimeFormat write FTimeFormat;
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end;
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TDataOutputFormatter = class of TIBCustomDataOutput;
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{ TIBCSVDataOut }
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TIBCSVDataOut = class(TIBCustomDataOutput)
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private
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FFieldSeparator: string;
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FHeaderSeparator: string;
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FQuoteChar: char;
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FQuoteStrings: boolean;
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protected
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procedure HeaderOut(Add2Log: TAdd2Log); override;
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procedure FormattedDataOut(Add2Log: TAdd2Log); override;
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public
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constructor Create(aOwner: TComponent); override;
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published
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property IncludeHeader;
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property FieldSeparator: string read FFieldSeparator write FFieldSeparator;
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property HeaderSeparator: string read FHeaderSeparator write FHeaderSeparator;
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property QuoteStrings: boolean read FQuoteStrings write FQuoteStrings default true;
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property QuoteChar: char read FQuoteChar write FQuoteChar default '''';
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property OnFormatTextString;
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end;
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{ TIBInsertStmtsOut }
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TIBInsertStmtsOut = class(TIBCustomDataOutput)
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private
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FIncludeBlobsAndArrays: boolean;
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FInsertHeader: string;
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protected
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procedure HeaderOut(Add2Log: TAdd2Log); override;
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procedure FormattedDataOut(Add2Log: TAdd2Log); override;
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public
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constructor Create(aOwner: TComponent); override;
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published
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property IncludeBlobsAndArrays: boolean read FIncludeBlobsAndArrays
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write FIncludeBlobsAndArrays default true;
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end;
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TAlignments = (taLeft, taCentre, taRight);
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{ TIBBlockFormatOut }
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TIBBlockFormatOut = class(TIBCustomDataOutput)
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private
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FColWidths: array of integer;
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FRowWidth: integer;
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function DashedLine: string;
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function TextAlign(s: string; ColWidth: integer; alignment: TAlignments
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): string;
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protected
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procedure HeaderOut(Add2Log: TAdd2Log); override;
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procedure FormattedDataOut(Add2Log: TAdd2Log); override;
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procedure TrailerOut(Add2Log: TAdd2Log); override;
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published
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property IncludeHeader;
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property OnFormatTextString;
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end;
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implementation
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uses IBUtils, IBMessages, Math, IBXScript;
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{ TIBBlockFormatOut }
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function TIBBlockFormatOut.DashedLine: string;
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var i: integer;
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begin
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Setlength(Result,FRowWidth);
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for i := 1 to FRowWidth do
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Result[i] := '-';
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end;
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function TIBBlockFormatOut.TextAlign(s: string; ColWidth: integer;
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alignment: TAlignments): string;
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begin
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SetLength(Result,ColWidth);
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FillChar(Result[1],ColWidth,' ');
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if Length(s) > ColWidth then
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s := LeftStr(s,ColWidth);
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case alignment of
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taLeft:
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Move(s[1],Result[1],Length(s));
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taCentre:
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Move(s[1],Result[(ColWidth - Length(s)) div 2 + 1],Length(s));
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taRight:
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Move(s[1],Result[ColWidth - Length(s) + 1],Length(s));
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end;
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end;
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procedure TIBBlockFormatOut.HeaderOut(Add2Log: TAdd2Log);
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var i: integer;
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s: string;
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begin
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with FIBSQL do
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begin
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{Calculate column Widths}
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SetLength(FColWidths,MetaData.Count);
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FRowWidth := 1; {assume leading '|'}
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for i := 0 to MetaData.Count - 1 do
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with MetaData[i] do
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begin
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case SQLType of
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SQL_VARYING, SQL_TEXT:
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FColWidths[i] := GetSize;
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SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
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FColWidths[i] := 18; {see http://www.freepascal.org/docs-html/rtl/sysutils/formatfloat.html}
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SQL_LONG:
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if Scale = 0 then
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FColWidths[i] := 12 {allow for minus sign}
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else
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FColWidths[i] := 13; {leave room for the decimal point}
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SQL_SHORT:
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if Scale = 0 then
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FColWidths[i] := 6 {allow for minus sign}
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else
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FColWidths[i] := 7; {leave room for the decimal point}
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SQL_INT64:
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if Scale = 0 then
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FColWidths[i] := 20 {allow for minus sign}
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else
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FColWidths[i] := 21; {leave room for the decimal point}
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SQL_TIMESTAMP:
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if TimestampFormat = '' then {Default format}
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FColWidths[i] := GetDateTimeStrLength(dfTimestamp)
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else
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FColWidths[i] := Length(TimestampFormat);
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SQL_TYPE_DATE:
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if DateFormat = '' then {Default format}
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FColWidths[i] := GetDateTimeStrLength(dfDateTime)
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else
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FColWidths[i] := Length(DateFormat);
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SQL_TYPE_TIME:
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if TimeFormat = '' then {Default format}
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FColWidths[i] := GetDateTimeStrLength(dfTime)
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else
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FColWidths[i] := Length(TimeFormat);
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SQL_BLOB:
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if SQLSubType = 1 then
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FColWidths[i] := MaxBlobText
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else
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FColWidths[i] := length(SBlob);
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SQL_ARRAY:
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FColWidths[i] := length(SArray);
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SQL_BOOLEAN:
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FColWidths[i] := Max(Length(STrue),Length(SFalse));
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end;
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if FColWidths[i] < Length(Name) then
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FColWidths[i] := Length(Name);
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FRowWidth += FColWidths[i] + 1;
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end;
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{Now output the header}
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Add2Log(DashedLine,false);
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s := '|';
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for i := 0 to MetaData.Count - 1 do
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s += TextAlign(MetaData[i].Name,FColWidths[i],taCentre) + '|';
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Add2Log(s,false);
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Add2Log(DashedLine,false);
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end;
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end;
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procedure TIBBlockFormatOut.FormattedDataOut(Add2Log: TAdd2Log);
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function TruncateTextBlob(textStr: string): string;
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begin
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if Length(textStr) > MaxBlobText then
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Result := LeftStr(textStr,MaxBlobText-3) + '...'
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else
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Result := textStr;
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end;
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var i: integer;
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s: string;
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begin
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s := '|';
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for i := 0 to FIBSQL.Current.Count - 1 do
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with FIBSQL do
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begin
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if Current[i].IsNull then
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s += TextAlign('NULL',FColWidths[i],taCentre)
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else
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tony |
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case Current[i].SQLType of
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SQL_VARYING, SQL_TEXT:
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s += TextAlign(FormatTextString(Current[i].AsString),FColWidths[i],taLeft);
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tony |
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SQL_TIMESTAMP:
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s += TextAlign(FormatTimeStamp(Current[i]),FColWidths[i],taLeft);
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tony |
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SQL_TYPE_DATE:
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s += TextAlign(FormatDate(Current[i]),FColWidths[i],taLeft);
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tony |
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SQL_TYPE_TIME:
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s += TextAlign(FormatTime(Current[i]),FColWidths[i],taLeft);
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tony |
209 |
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SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT,
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SQL_LONG, SQL_SHORT, SQL_INT64:
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tony |
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s += TextAlign(Current[i].AsString,FColWidths[i],taRight);
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tony |
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SQL_BOOLEAN, SQL_ARRAY:
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s += TextAlign(Current[i].AsString,FColWidths[i],taCentre);
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tony |
209 |
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SQL_BLOB:
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tony |
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if Current[i].SQLSubType = 1 then
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s += TextAlign(TruncateTextBlob(Current[i].AsString),FColWidths[i],taLeft)
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tony |
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else
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s += TextAlign(sBlob,FColWidths[i],taCentre);
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end;
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s += '|';
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end;
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Add2Log(s,false);
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Add2Log(DashedLine,false);
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end;
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329 |
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procedure TIBBlockFormatOut.TrailerOut(Add2Log: TAdd2Log);
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330 |
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begin
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331 |
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Add2Log(DashedLine,false);
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end;
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333 |
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334 |
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{ TIBInsertStmtsOut }
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335 |
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336 |
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procedure TIBInsertStmtsOut.HeaderOut(Add2Log: TAdd2Log);
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337 |
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var TableName: string;
|
338 |
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i,j: integer;
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339 |
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begin
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340 |
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TableName := trim(FIBSQL.GetUniqueRelationName);
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341 |
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if TableName = '' then
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342 |
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IBError(ibxeUniqueRelationReqd,[nil]);
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343 |
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344 |
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Add2Log('',false);
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345 |
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Add2Log('/* Inserting data into Table: ' + TableName + ' */',false);
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Add2Log('',false);
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347 |
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348 |
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FInsertHeader := 'INSERT INTO ' + QuoteIdentifierIfNeeded(Database.SQLDialect, TableName) + ' (';
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349 |
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with FIBSQL do
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350 |
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begin
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351 |
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j := 0;
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352 |
|
|
for i := 0 to MetaData.Count - 1 do
|
353 |
|
|
if IncludeBlobsAndArrays or
|
354 |
|
|
((MetaData[i].SQLTYPE <> SQL_BLOB) and (MetaData[i].SQLType <> SQL_ARRAY)) then
|
355 |
|
|
begin
|
356 |
|
|
if j <> 0 then FInsertHeader += ',';
|
357 |
|
|
FInsertHeader += QuoteIdentifierIfNeeded(Database.SQLDialect,Trim(MetaData[i].getAliasName));
|
358 |
|
|
Inc(j);
|
359 |
|
|
end;
|
360 |
|
|
end;
|
361 |
|
|
FInsertHeader += ') VALUES(';
|
362 |
|
|
end;
|
363 |
|
|
|
364 |
|
|
procedure TIBInsertStmtsOut.FormattedDataOut(Add2Log: TAdd2Log);
|
365 |
|
|
const
|
366 |
|
|
QuoteChar = '''';
|
367 |
|
|
|
368 |
|
|
var s: string;
|
369 |
|
|
i, j: integer;
|
370 |
|
|
ar: IArray;
|
371 |
|
|
begin
|
372 |
|
|
s := FInsertHeader;
|
373 |
|
|
with FIBSQL do
|
374 |
|
|
begin
|
375 |
|
|
j := 0;
|
376 |
|
|
for i := 0 to Current.Count - 1 do
|
377 |
|
|
if IncludeBlobsAndArrays or
|
378 |
|
|
((Current[i].SQLTYPE <> SQL_BLOB) and (Current[i].SQLType <> SQL_ARRAY)) then
|
379 |
|
|
begin
|
380 |
|
|
if j <> 0 then s += ',';
|
381 |
|
|
if Current[i].IsNull then
|
382 |
|
|
s += 'NULL'
|
383 |
|
|
else
|
384 |
|
|
case Current[i].SQLType of
|
385 |
|
|
SQL_BLOB:
|
386 |
|
|
if Current[i].SQLSubType = 1 then
|
387 |
|
|
begin
|
388 |
|
|
if Current[i].getCharSetID = 1 {octets} then
|
389 |
|
|
s += Format('x''%s''',[StringToHex(Current[i].AsString)])
|
390 |
|
|
else
|
391 |
|
|
s += QuoteChar + SQLSafeString(Current[i].AsString) + QuoteChar
|
392 |
|
|
end
|
393 |
|
|
else
|
394 |
tony |
263 |
s += TSQLXMLReader.FormatBlob(Current[i]);
|
395 |
tony |
209 |
|
396 |
|
|
SQL_ARRAY:
|
397 |
|
|
begin
|
398 |
|
|
ar := Current[i].AsArray;
|
399 |
|
|
if ar = nil then
|
400 |
|
|
s += 'NULL'
|
401 |
|
|
else
|
402 |
tony |
263 |
s += TSQLXMLReader.FormatArray(Database,ar);
|
403 |
tony |
209 |
end;
|
404 |
|
|
|
405 |
|
|
SQL_TEXT, SQL_VARYING:
|
406 |
|
|
if Current[i].getCharSetID = 1 {octets} then
|
407 |
|
|
s += Format('x''%s''',[StringToHex(Current[i].AsString)])
|
408 |
|
|
else
|
409 |
|
|
s += QuoteChar + SQLSafeString(Current[i].AsString) + QuoteChar;
|
410 |
|
|
|
411 |
|
|
SQL_TIMESTAMP:
|
412 |
tony |
270 |
s += QuoteChar + FormatTimeStamp(Current[i]) + QuoteChar;
|
413 |
tony |
209 |
|
414 |
|
|
SQL_TYPE_DATE:
|
415 |
tony |
270 |
s += QuoteChar + FormatDate(Current[i]) + QuoteChar;
|
416 |
tony |
209 |
|
417 |
|
|
SQL_TYPE_TIME:
|
418 |
tony |
270 |
s += QuoteChar + FormatTime(Current[i]) + QuoteChar;
|
419 |
tony |
209 |
|
420 |
|
|
else
|
421 |
|
|
s += Current[i].AsString;
|
422 |
|
|
end;
|
423 |
|
|
Inc(j);
|
424 |
|
|
end;
|
425 |
|
|
end;
|
426 |
|
|
s += ');';
|
427 |
|
|
Add2Log(s,false);
|
428 |
|
|
end;
|
429 |
|
|
|
430 |
|
|
constructor TIBInsertStmtsOut.Create(aOwner: TComponent);
|
431 |
|
|
begin
|
432 |
|
|
inherited Create(aOwner);
|
433 |
|
|
FIncludeBlobsAndArrays := true;
|
434 |
|
|
end;
|
435 |
|
|
|
436 |
|
|
{ TIBCSVDataOut }
|
437 |
|
|
|
438 |
|
|
procedure TIBCSVDataOut.HeaderOut(Add2Log: TAdd2Log);
|
439 |
|
|
var i: integer;
|
440 |
|
|
s: string;
|
441 |
|
|
begin
|
442 |
|
|
s := '';
|
443 |
|
|
for i := 0 to FIBSQL.MetaData.Count - 1 do
|
444 |
|
|
begin
|
445 |
tony |
270 |
if i <> 0 then s += HeaderSeparator;
|
446 |
tony |
209 |
s += FIBSQL.MetaData[i].getAliasName;
|
447 |
|
|
end;
|
448 |
|
|
Add2Log(s,false);
|
449 |
|
|
end;
|
450 |
|
|
|
451 |
|
|
procedure TIBCSVDataOut.FormattedDataOut(Add2Log: TAdd2Log);
|
452 |
tony |
270 |
|
453 |
|
|
function GetQuoteChar: string;
|
454 |
|
|
begin
|
455 |
|
|
if QuoteStrings then
|
456 |
|
|
Result := QuoteChar
|
457 |
|
|
else
|
458 |
|
|
Result := '';
|
459 |
|
|
end;
|
460 |
|
|
|
461 |
tony |
209 |
var i: integer;
|
462 |
|
|
s: string;
|
463 |
|
|
begin
|
464 |
|
|
s := '';
|
465 |
|
|
with FIBSQL do
|
466 |
|
|
begin
|
467 |
|
|
for i := 0 to Current.Count - 1 do
|
468 |
|
|
with Current[i] do
|
469 |
|
|
begin
|
470 |
tony |
270 |
if i <> 0 then s += FieldSeparator;
|
471 |
tony |
209 |
case SQLType of
|
472 |
|
|
SQL_BLOB:
|
473 |
|
|
if SQLSubType <> 1 then
|
474 |
|
|
s += sBlob
|
475 |
|
|
else
|
476 |
tony |
270 |
s += GetQuoteChar + Current[i].AsString + GetQuoteChar;
|
477 |
tony |
209 |
|
478 |
tony |
270 |
SQL_VARYING,SQL_TEXT:
|
479 |
|
|
s += GetQuoteChar + FormatTextString(Current[i].AsString) + GetQuoteChar;
|
480 |
tony |
209 |
|
481 |
tony |
270 |
SQL_TIMESTAMP:
|
482 |
|
|
s += GetQuoteChar + FormatTimeStamp(Current[i]) + GetQuoteChar;
|
483 |
|
|
|
484 |
|
|
SQL_TYPE_DATE:
|
485 |
|
|
s += GetQuoteChar + FormatDate(Current[i]) + GetQuoteChar;
|
486 |
|
|
|
487 |
|
|
SQL_TYPE_TIME:
|
488 |
|
|
s += GetQuoteChar + FormatTime(Current[i]) + GetQuoteChar;
|
489 |
|
|
|
490 |
tony |
209 |
else
|
491 |
|
|
s += Current[i].AsString;
|
492 |
|
|
end;
|
493 |
|
|
end;
|
494 |
|
|
end;
|
495 |
|
|
Add2Log(s,false);
|
496 |
|
|
end;
|
497 |
|
|
|
498 |
|
|
constructor TIBCSVDataOut.Create(aOwner: TComponent);
|
499 |
|
|
begin
|
500 |
|
|
inherited Create(aOwner);
|
501 |
tony |
270 |
FQuoteStrings := true;
|
502 |
tony |
209 |
FQuoteChar := '''';
|
503 |
tony |
270 |
FTimestampFormat := '';
|
504 |
|
|
FDateFormat := '';
|
505 |
|
|
FTimestampFormat := '';
|
506 |
|
|
FFieldSeparator := ',';
|
507 |
|
|
FHeaderSeparator := ',';
|
508 |
tony |
209 |
end;
|
509 |
|
|
|
510 |
|
|
{ TIBCustomDataOutput }
|
511 |
|
|
|
512 |
|
|
function TIBCustomDataOutput.GetDatabase: TIBDatabase;
|
513 |
|
|
begin
|
514 |
|
|
Result := FIBSQL.Database;
|
515 |
|
|
end;
|
516 |
|
|
|
517 |
|
|
function TIBCustomDataOutput.GetTransaction: TIBTransaction;
|
518 |
|
|
begin
|
519 |
|
|
Result := FIBSQL.Transaction;
|
520 |
|
|
end;
|
521 |
|
|
|
522 |
|
|
procedure TIBCustomDataOutput.SetDatabase(AValue: TIBDatabase);
|
523 |
|
|
begin
|
524 |
|
|
FIBSQL.Database := AValue;
|
525 |
|
|
end;
|
526 |
|
|
|
527 |
|
|
procedure TIBCustomDataOutput.SetTransaction(AValue: TIBTransaction);
|
528 |
|
|
begin
|
529 |
|
|
FIBSQL.Transaction := AValue;
|
530 |
|
|
end;
|
531 |
|
|
|
532 |
|
|
procedure TIBCustomDataOutput.HeaderOut(Add2Log: TAdd2Log);
|
533 |
|
|
begin
|
534 |
|
|
//stub
|
535 |
|
|
end;
|
536 |
|
|
|
537 |
|
|
procedure TIBCustomDataOutput.TrailerOut(Add2Log: TAdd2Log);
|
538 |
|
|
begin
|
539 |
|
|
//stub
|
540 |
|
|
end;
|
541 |
|
|
|
542 |
tony |
270 |
function TIBCustomDataOutput.FormatTimestamp(aValue: ISQLData): string;
|
543 |
|
|
begin
|
544 |
|
|
if TimeStampFormat <> '' then
|
545 |
|
|
Result := FormatDateTime(TimeStampFormat,aValue.AsDateTime)
|
546 |
|
|
else
|
547 |
|
|
Result := aValue.AsString;
|
548 |
|
|
end;
|
549 |
|
|
|
550 |
|
|
function TIBCustomDataOutput.FormatDate(aValue: ISQLData): string;
|
551 |
|
|
begin
|
552 |
|
|
if DateFormat <> '' then
|
553 |
|
|
Result := FormatDateTime(DateFormat,aValue.AsDateTime)
|
554 |
|
|
else
|
555 |
|
|
Result := aValue.AsString;
|
556 |
|
|
end;
|
557 |
|
|
|
558 |
|
|
function TIBCustomDataOutput.FormatTime(aValue: ISQLData): string;
|
559 |
|
|
begin
|
560 |
|
|
if TimeFormat <> '' then
|
561 |
|
|
Result := FormatDateTime(TimeFormat,aValue.AsDateTime)
|
562 |
|
|
else
|
563 |
|
|
Result := aValue.AsString;
|
564 |
|
|
end;
|
565 |
|
|
|
566 |
|
|
function TIBCustomDataOutput.FormatTextString(aValue: string): string;
|
567 |
|
|
begin
|
568 |
|
|
Result := aValue;
|
569 |
|
|
if assigned(FOnFormatTextString) then
|
570 |
|
|
OnFormatTextString(self,Result);
|
571 |
|
|
end;
|
572 |
|
|
|
573 |
tony |
209 |
constructor TIBCustomDataOutput.Create(aOwner: TComponent);
|
574 |
|
|
begin
|
575 |
|
|
inherited Create(aOwner);
|
576 |
|
|
FIBSQL := TIBSQL.Create(self);
|
577 |
|
|
FIncludeHeader := true;
|
578 |
tony |
270 |
FTimestampFormat := sTimestampFormat;
|
579 |
|
|
FDateFormat := sDateFormat;
|
580 |
|
|
FTimeFormat := sTimeFormat;
|
581 |
tony |
209 |
end;
|
582 |
|
|
|
583 |
|
|
procedure TIBCustomDataOutput.Assign(Source: TPersistent);
|
584 |
|
|
begin
|
585 |
|
|
if Source is TIBCustomDataOutput then
|
586 |
|
|
begin
|
587 |
|
|
IncludeHeader := TIBCustomDataOutput(Source).IncludeHeader;
|
588 |
|
|
RowCount := TIBCustomDataOutput(Source).RowCount;
|
589 |
|
|
ShowPerformanceStats := TIBCustomDataOutput(Source).ShowPerformanceStats;
|
590 |
|
|
PlanOptions := TIBCustomDataOutput(Source).PlanOptions;
|
591 |
|
|
end;
|
592 |
|
|
end;
|
593 |
|
|
|
594 |
|
|
function TIBCustomDataOutput.DataOut(SelectQuery: string; Add2Log: TAdd2Log
|
595 |
|
|
): boolean;
|
596 |
|
|
var Count: integer;
|
597 |
|
|
begin
|
598 |
|
|
FIBSQL.SQL.Text := SelectQuery;
|
599 |
|
|
FIBSQL.Prepare;
|
600 |
|
|
FIBSQL.Statement.EnableStatistics(ShowPerformanceStats);
|
601 |
|
|
if PlanOptions <> poNoPlan then
|
602 |
|
|
Add2Log(FIBSQL.Plan,false);
|
603 |
|
|
if PlanOptions = poPlanOnly then
|
604 |
|
|
Exit;
|
605 |
|
|
|
606 |
|
|
Count := 0;
|
607 |
|
|
FIBSQL.ExecQuery;
|
608 |
|
|
try
|
609 |
|
|
if IncludeHeader and not FIBSQL.EOF then
|
610 |
|
|
HeaderOut(Add2Log);
|
611 |
|
|
while (not FIBSQL.EOF) and ((FRowCount = 0) or (Count < FRowCount)) do
|
612 |
|
|
begin
|
613 |
|
|
FormattedDataOut(Add2Log);
|
614 |
|
|
FIBSQL.Next;
|
615 |
|
|
Inc(Count);
|
616 |
|
|
end;
|
617 |
|
|
ShowPerfStats(FIBSQL.Statement,Add2Log);
|
618 |
|
|
finally
|
619 |
|
|
FIBSQL.Close;
|
620 |
|
|
end;
|
621 |
|
|
Result := Count > 0;
|
622 |
|
|
end;
|
623 |
|
|
|
624 |
|
|
procedure TIBCustomDataOutput.SetCommand(command, aValue, stmt: string;
|
625 |
|
|
var Done: boolean);
|
626 |
|
|
|
627 |
|
|
function Toggle(aValue: string): boolean;
|
628 |
|
|
begin
|
629 |
|
|
aValue := AnsiUpperCase(aValue);
|
630 |
|
|
if aValue = 'ON' then
|
631 |
|
|
Result := true
|
632 |
|
|
else
|
633 |
|
|
if aValue = 'OFF' then
|
634 |
|
|
Result := false
|
635 |
|
|
else
|
636 |
|
|
raise Exception.CreateFmt(sInvalidSetStatement, [command,stmt]);
|
637 |
|
|
end;
|
638 |
|
|
|
639 |
|
|
begin
|
640 |
|
|
done := true;
|
641 |
|
|
if command = 'HEADING' then
|
642 |
|
|
FIncludeHeader := ((aValue = '') and not FIncludeHeader) or
|
643 |
|
|
((aValue <> '') and Toggle(aValue))
|
644 |
|
|
else
|
645 |
|
|
if command = 'ROWCOUNT' then
|
646 |
|
|
FRowCount := StrToInt(aValue)
|
647 |
|
|
else
|
648 |
|
|
if command = 'PLAN' then
|
649 |
|
|
begin
|
650 |
|
|
if aValue = '' then
|
651 |
|
|
begin
|
652 |
|
|
if FPlanOptions <> poIncludePlan then
|
653 |
|
|
FPlanOptions := poIncludePlan
|
654 |
|
|
else
|
655 |
|
|
FPlanOptions := poNoPlan;
|
656 |
|
|
end
|
657 |
|
|
else
|
658 |
|
|
if Toggle(aValue) then
|
659 |
|
|
FPlanOptions := poIncludePlan
|
660 |
|
|
else
|
661 |
|
|
FPlanOptions := poNoPlan;
|
662 |
|
|
end
|
663 |
|
|
else
|
664 |
|
|
if command = 'PLANONLY' then
|
665 |
|
|
begin
|
666 |
|
|
if aValue = '' then
|
667 |
|
|
begin
|
668 |
|
|
if FPlanOptions <> poPlanOnly then
|
669 |
|
|
FPlanOptions := poPlanOnly
|
670 |
|
|
else
|
671 |
|
|
FPlanOptions := poNoPlan;
|
672 |
|
|
end
|
673 |
|
|
else
|
674 |
|
|
if Toggle(aValue) then
|
675 |
|
|
FPlanOptions := poPlanOnly
|
676 |
|
|
else
|
677 |
|
|
if FPlanOptions <> poIncludePlan then
|
678 |
|
|
FPlanOptions := poNoPlan;
|
679 |
|
|
end
|
680 |
|
|
else
|
681 |
|
|
done := false;
|
682 |
|
|
end;
|
683 |
|
|
|
684 |
|
|
class procedure TIBCustomDataOutput.ShowPerfStats(Statement: IStatement;
|
685 |
|
|
Add2Log: TAdd2Log);
|
686 |
|
|
var stats: TPerfCounters;
|
687 |
|
|
LargeCompFormat: string;
|
688 |
|
|
ThreeSigPlacesFormat: string;
|
689 |
|
|
begin
|
690 |
|
|
LargeCompFormat := '#' + DefaultFormatSettings.ThousandSeparator + '##0';
|
691 |
|
|
ThreeSigPlacesFormat := '#0' + DefaultFormatSettings.DecimalSeparator + '000';
|
692 |
|
|
if Statement.GetPerfStatistics(stats) then
|
693 |
|
|
begin
|
694 |
|
|
Add2Log('Current memory = ' + FormatFloat(LargeCompFormat,stats[psCurrentMemory]));
|
695 |
|
|
Add2Log('Delta memory = ' + FormatFloat(LargeCompFormat,stats[psDeltaMemory]));
|
696 |
|
|
Add2Log('Max memory = ' + FormatFloat(LargeCompFormat,stats[psMaxMemory]));
|
697 |
|
|
Add2Log('Elapsed time= ' + FormatFloat(ThreeSigPlacesFormat,stats[psRealTime]/1000) +' sec');
|
698 |
|
|
Add2Log('Cpu = ' + FormatFloat(ThreeSigPlacesFormat,stats[psUserTime]/1000) + ' sec');
|
699 |
|
|
Add2Log('Buffers = ' + FormatFloat('#0',stats[psBuffers]));
|
700 |
|
|
Add2Log('Reads = ' + FormatFloat('#0',stats[psReads]));
|
701 |
|
|
Add2Log('Writes = ' + FormatFloat('#0',stats[psWrites]));
|
702 |
|
|
Add2Log('Fetches = ' + FormatFloat('#0',stats[psFetches]));
|
703 |
|
|
end;
|
704 |
|
|
end;
|
705 |
|
|
|
706 |
|
|
end.
|
707 |
|
|
|