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program TestSelectInto;
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{$mode delphi}
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{$codepage UTF8}
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{$interfaces COM}
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uses Classes, FBUDRController, FBUdrPlugin, IB, UdrSelectInto;
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procedure ReportResult(aValue: IResults);
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var i: integer;
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begin
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for i := 0 to aValue.getCount - 1 do
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writeln(aValue[i].Name,' = ',aValue[i].AsString);
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end;
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procedure ReportResults(cursor: IResultset);
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begin
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while not cursor.IsEof do
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begin
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ReportResult(cursor);
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cursor.FetchNext;
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end;
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end;
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procedure TestSelectInto(UDRPlugin: TFBUdrPluginEmulator);
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var SelectInto: TExternalProcedureWrapper;
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Transaction: ITransaction;
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Results: IProcedureResults;
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begin
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{Get the emulator wrapper for the row_count function, declared as MyRowCount}
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SelectInto := UDRPlugin.makeProcedure('SELECT_INTO', {Name of procedure in database - case sensitive}
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'', {package name is empty}
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'selectinto!select_into' {entry point}
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);
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try
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SelectInto.InputParams.ByName('select_statement').AsString := 'Select * From EMPLOYEE Where Salary < 50000';
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SelectInto.InputParams.ByName('table_name').AsString := 'LOWER_PAID';
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SelectInto.InputParams.ByName('table_type').AsString := '';
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Transaction := UDRPlugin.Attachment.StartTransaction([isc_tpb_write,isc_tpb_nowait,isc_tpb_read_committed],taCommit);
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Results := SelectInto.Execute(Transaction);
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if Results.FetchNext then
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writeln('Procedure Returns ',Results.ByName('Status').AsString)
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else
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writeln('No results');
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writeln('Show Table');
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ReportResults(UDRPlugin.Attachment.OpenCursorAtStart(Transaction,'Select * From LOWER_PAID'));
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finally
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SelectInto.Free;
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end;
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end;
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const
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DDL: array [0..0] of Ansistring = ('create or alter procedure select_into (' +
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'select_statement blob sub_type 1 not null,'+
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'table_name varchar(63) not null,'+
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'table_type varchar(25) not null' +
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') returns ('+
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'status varchar(100)) as begin end'
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);
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CleanUpDDL: array [0..0] of Ansistring = ('Drop procedure select_into'
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);
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procedure RunTest;
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var Attachment: IAttachment;
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DPB: IDPB;
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UDRPlugin: TFBUdrPluginEmulator;
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i: integer;
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begin
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{Open a connection with the example employee database. Amend database parameters
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as needed.}
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DPB := FirebirdAPI.AllocateDPB;
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DPB.Add(isc_dpb_user_name).setAsString('SYSDBA');
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DPB.Add(isc_dpb_password).setAsString('masterkey');
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DPB.Add(isc_dpb_lc_ctype).setAsString('UTF8');
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DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(3);
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Attachment := FirebirdAPI.OpenDatabase('localhost:employee',DPB);
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for i := 0 to Length(DDL) -1 do
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],DDL[i]);
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try
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UDRPlugin := TFBUdrPluginEmulator.Create(FBUDRControllerOptions.ModuleName);
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try
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{initialize the emulator with the database connection}
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UDRPlugin.Attachment := Attachment;
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TestSelectInto(UDRPlugin);
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finally
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UDRPlugin.Free;
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end;
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finally
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for i := 0 to Length(CleanUpDDL) -1 do
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],CleanUpDDL[i]);
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Attachment.Disconnect(true);
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end;
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end;
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begin
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with FBUDRControllerOptions do
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begin
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ModuleName := 'selectinto';
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AllowConfigFileOverrides := true;
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LogFileNameTemplate := 'SelectInto.log';
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LogOptions := [loLogFunctions, loLogProcedures, loLogTriggers, loDetails];
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end;
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RunTest;
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{$IFDEF WINDOWS}
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readln; {force console window to stay open}
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{$ENDIF}
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end.
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