FireDac 的数据库批量语句提交（高效）

FD 提供了批量执行功能， 称为 Array DML。 可以这么做：

FDQuery1.SQL.Text := ‘insert into MyTab values (:p1, :p2, :p3)‘;
// here FDQuery1.Params collection is filled by 3 parameters
FDQuery1.Params.ArraySize := 100;
for i := 0 to 100-1 do begin
  FDQuery1.Params[0].AsIntegers[i] := i;
  FDQuery1.Params[1].AsStrings[i] := ‘qwe‘;
  FDQuery1.Params[2].Clear(i);
end;

FDQuery1.Execute(100, 0);   //从0开始，执行100个批量执行

ShowMessage(IntToStr(FDQuery1.RowsAffected));   //显示执行成功的条数

OnExecuteError 事件可处理执行错误

procedure TForm1.FDQuery1ExecuteError(ASender: TObject; ATimes,
  AOffset: Integer; AError: EFDDBEngineException; var AAction: TFDErrorAction);
begin
  if AError.Errors[0].Kind = ekUKViolated then
    AAction := eaSkip
  else
    AAction := eaFail;
end;