FireDAC.Comp.Client.TFDCustomCommand.RowsAffected
| [–] Properties | |
|---|---|
| Type: property | |
| Visibility: public | |
| Source: FireDAC.Comp.Client.pas FireDAC.Comp.Client.hpp
| |
| Unit: FireDAC.Comp.Client | |
| Parent: TFDCustomCommand | |
Delphi
property RowsAffected: TFDCounter read FRowsAffected;
C++
__property Firedac::Stan::Intf::TFDCounter RowsAffected = {read=FRowsAffected, nodefault};
Description
Returns the number of rows operated upon by the latest query execution.
Inspect RowsAffected to determine how many rows were inserted, updated, deleted or fetched by the last command operation. If no rows were processed, RowsAffected = 0. If the numbers of processed rows are not accessible, RowsAffected = –1.
For MS SQL Server, RowsAffected may be unexpectedly equal to -1, if the stored procedure or the table trigger omits SET NOCOUNT ON. Check BOL for more details.
Example
procedure TForm1.ADCommand1AfterExecute(ASender: TObject);
begin
if ADCommand1.RowsAffected = -1 then
StatusBar1.SimpleText := 'Ok'
else
case ADCommand1.CommandKind of
skDelete: StatusBar1.SimpleText := Format('%d rows deleted', [ADCommand1.RowsAffected]);
skInsert: StatusBar1.SimpleText := Format('%d rows inserted', [ADCommand1.RowsAffected]);
skUpdate: StatusBar1.SimpleText := Format('%d rows updated', [ADCommand1.RowsAffected]);
else StatusBar1.SimpleText := Format('%d rows affected', [ADCommand1.RowsAffected]);
end;
end;