Area: database\ado
Reference Number: 72795 Status: Open
Date Reported: 10/12/99Severity: Infrequently EncounteredType: Minor Functionality FailureProblem:Scrolling through an ADO dataset with
CursorLocation = cllUseClient is significantly slower
than the equivalent operation usiing straight ADO.Problem is the call to Recordset.AbsolutePosition
which is made in the InternalGetRecord method
call.Workaround:Use a server side cursor instead.
Reference Number: 72795 Status: Open
Date Reported: 10/12/99Severity: Infrequently EncounteredType: Minor Functionality FailureProblem:Scrolling through an ADO dataset with
CursorLocation = cllUseClient is significantly slower
than the equivalent operation usiing straight ADO.Problem is the call to Recordset.AbsolutePosition
which is made in the InternalGetRecord method
call.Workaround:Use a server side cursor instead.
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ADOQuery.SQL.Text := 'select * from table where name = "***"';
ADOQuery.Open;
如果要定位指针,可以用ADODataSet的MoveBy方法;
查询:
With ADODataSet1 do
begin
Close;
CommandText:='select * from <表名称>
where name="***"';
open;
end;