Bug with pbByNumber [XE8 Update 1 + FireDAC + SQLite + Array DML]
Hello.
I'm trying to use Array DML with SQLite (native mode) and I get this exception: Exception class EListError with message 'List index out of bounds (1)'. Project zip: http://www9.zippyshare.com/v/cOW0euhW/file.html
Code:
{code}
const
NUM_INSERTS = 10000;
procedure TForm7.Button3Click(Sender: TObject);
var
i: integer;
t: integer;
begin
t := GetTickCount;
FDQuery1.Params.BindMode := pbByNumber; // !!!!! <= !!!!!!
FDQuery1.Connection.ExecSQL('DROP TABLE IF EXISTS tbl;');
FDQuery1.Connection.ExecSQL('CREATE TABLE tbl(BaseNum INTEGER);');
FDQuery1.SQL.Text := 'INSERT INTO tbl (BaseNum) VALUES (:BN)';
FDQuery1.Connection.StartTransaction;
try
FDQuery1.Params.ArraySize := NUM_INSERTS;
for i := 0 to NUM_INSERTS - 1 do
begin
FDQuery1.Params[0].AsIntegers[i] := i;
end;
FDQuery1.Execute(NUM_INSERTS, 0);
FDQuery1.Connection.Commit;
except
FDQuery1.Connection.Rollback;
raise;
end;
(Sender as TButton).Caption := FloatToStr((GetTickCount() - t) / 1000);
end;
{code}
Connection:
{code}
object FDConnection1: TFDConnection
Params.Strings = (
'DriverID=SQLite')
ResourceOptions.AssignedValues = [rvArrayDMLSize]
ResourceOptions.ArrayDMLSize = 150
LoginPrompt = False
Left = 115
Top = 25
end
{code}
Query:
{code}
object FDQuery1: TFDQuery
Connection = FDConnection1
ResourceOptions.AssignedValues = [rvArrayDMLSize]
ResourceOptions.ArrayDMLSize = 150
Left = 179
Top = 25
end
{code}
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Ilja
8/15/2015 5:32:15 PM
embarcadero.delphi.firedac
822 articles. 
2 followers.
1 Replies
911 Views
This is a bug in FireDAC SQLite driver. There are two workarounds: * do not use pbByNumber, but that will disable native array DML support; * do not set ResourceOptions.ArrayDMLSize, but you will need to keep eyes open when you will have large array size. -- With best regards, Dmitry Arefiev / FireDAC Architect
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Dmitry
8/18/2015 6:59:51 AM
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Web resources about - Bug with pbByNumber [XE8 Update 1 + FireDAC + SQLite + Array DML] - embarcadero.delphi.firedacResources last updated: 12/12/2015 7:49:01 PM