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tony |
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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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