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unit Test8; |
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|
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{$mode objfpc}{$H+} |
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{$codepage utf8} |
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|
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{Test 8: Create and read back an Array with 2 dimensions} |
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|
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{ |
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1. Create an empty database and populate with a single table including a two |
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dimensional array of varchar(16) column. |
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|
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2. Select all and show metadata including array metadata. |
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|
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3. Insert a row but leave array null |
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|
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4. Show result. |
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|
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5. Update row with a populated array and show results. |
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} |
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|
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interface |
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|
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uses |
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Classes, SysUtils, TestManager, IB; |
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|
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type |
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|
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{ TTest8 } |
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|
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TTest8 = class(TTestBase) |
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private |
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procedure UpdateDatabase(Attachment: IAttachment); |
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public |
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function TestTitle: string; override; |
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procedure RunTest(CharSet: string; SQLDialect: integer); override; |
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end; |
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|
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implementation |
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|
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const |
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sqlCreateTable = |
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'Create Table TestData ('+ |
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'RowID Integer not null,'+ |
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'Title VarChar(32) Character Set UTF8,'+ |
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'MyArray VarChar(16) [0:16, -1:7] Character Set ISO8859_2,'+ |
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'Primary Key(RowID)'+ |
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')'; |
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|
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sqlInsert = 'Insert into TestData(RowID,Title) Values(:RowID,:Title)'; |
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|
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sqlUpdate = 'Update TestData Set MyArray = ? Where RowID = 1'; |
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|
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{ TTest8 } |
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|
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procedure TTest8.UpdateDatabase(Attachment: IAttachment); |
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var Transaction: ITransaction; |
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Statement: IStatement; |
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ResultSet: IResultSet; |
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i,j,k : integer; |
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ar: IArray; |
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begin |
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Transaction := Attachment.StartTransaction([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],taCommit); |
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Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
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PrintMetaData(Statement.GetMetaData); |
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Statement := Attachment.PrepareWithNamedParameters(Transaction,sqlInsert); |
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ParamInfo(Statement.GetSQLParams); |
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with Statement.GetSQLParams do |
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begin |
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ByName('rowid').AsInteger := 1; |
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ByName('title').AsString := '2D Array'; |
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end; |
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Statement.Execute; |
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Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
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ReportResults(Statement); |
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|
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Statement := Attachment.Prepare(Transaction,sqlUpdate); |
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ar := Attachment.CreateArray(Transaction,'TestData','MyArray'); |
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if ar <> nil then |
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begin |
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k := 50; |
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for i := 0 to 16 do |
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for j := -1 to 7 do |
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begin |
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ar.SetAsString([i,j],'A' + IntToStr(k)); |
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Inc(k); |
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end; |
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Statement.SQLParams[0].AsArray := ar; |
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Statement.Execute; |
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end; |
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Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
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ReportResults(Statement); |
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end; |
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|
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function TTest8.TestTitle: string; |
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begin |
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Result := 'Test 8: Create and read back an Array with 2 dimensions'; |
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end; |
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|
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procedure TTest8.RunTest(CharSet: string; SQLDialect: integer); |
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var DPB: IDPB; |
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Attachment: IAttachment; |
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begin |
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DPB := FirebirdAPI.AllocateDPB; |
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DPB.Add(isc_dpb_user_name).setAsString(Owner.GetUserName); |
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DPB.Add(isc_dpb_password).setAsString(Owner.GetPassword); |
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DPB.Add(isc_dpb_lc_ctype).setAsString(CharSet); |
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DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(SQLDialect); |
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Attachment := FirebirdAPI.CreateDatabase(Owner.GetNewDatabaseName,DPB); |
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateTable); |
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UpdateDatabase(Attachment); |
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|
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Attachment.DropDatabase; |
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end; |
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|
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initialization |
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RegisterTest(TTest8); |
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|
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end. |
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|
