enhance: rephrase warning message displayed when a grid edit/delete did not affect any row

Refs #2568

Author: ansgarbecker

source/dbconnection.pas

@@ -9585,7 +9585,7 @@ procedure TDBQuery.DeleteRow;
     TempRowsAffected := Connection.RowsAffected;
     Connection.ShowWarnings;
     if TempRowsAffected = 0 then
-      raise EDbError.Create(FormatNumber(TempRowsAffected)+' rows deleted when that should have been 1.');
+      raise EDbError.Create(f_('The DELETE affected %s rows, but 1 was expected. On tables without a primary or unique key, HeidiSQL must match on all columns, so edits may not reliably target the intended row.', [FormatNumber(TempRowsAffected)]));
   end;
   if Assigned(FCurrentUpdateRow) then begin
     FUpdateData.Remove(FCurrentUpdateRow);
@@ -9850,7 +9850,7 @@ function TDBQuery.SaveModifications: Boolean;
         TempRowsAffected := Connection.RowsAffected;
         Connection.ShowWarnings;
         if TempRowsAffected = 0 then begin
-          raise EDbError.Create(FormatNumber(TempRowsAffected)+' rows updated when that should have been 1.');
+          raise EDbError.Create(f_('The UPDATE affected %s rows, but 1 was expected. On tables without a primary or unique key, HeidiSQL must match on all columns, so edits may not reliably target the intended row.', [FormatNumber(TempRowsAffected)]));
           Result := False;
         end;
       end;