internal int _ExecuteCommand()
        {
            var result = 0;
            var sqlobj = deleteobj.ToSql();

            foreach (var item in Tables)
            {
                var newsqlobj = GetSqlObj(sqlobj, item.TableName);
                result += this.Context.Ado.ExecuteCommand(newsqlobj.Key, newsqlobj.Value);
            }
            return(result);
        }