Question

我从Dapper官方文档中看过如下的QueryMultiple，很方便！

     var sql = @"
select * from Customers where CustomerId = @id
select * from Orders where CustomerId = @id
select * from Returns where CustomerId = @id";

using (var multi = connection.QueryMultiple(sql, new {id=selectedId}))
{
   var customer = multi.Read<Customer>().Single();
   var orders = multi.Read<Order>().ToList();
   var returns = multi.Read<Return>().ToList();
   ...
}

现在，当我从Parent-table中删除记录时，我想从Child-table中删除相关记录。小巧玲珑的适合吗？看起来如下所示。

 var sql = @"delete from tb_role where roleid=@ID
                            delete from tb_rolepermission where roleid=@ID
                            delete from tb_userrole where roleid=@ID
        ";
        var param = new { ID=id };

 connection.EXECUTEMultiple(sql, param)..........

任何帮助将不胜感激！

Answer 1

是的，您可以简单地调用connection.Execute并且它已经允许您尝试执行的多个命令，就像ScuteCommand上的ExecuteQuery允许的那样，这都是Dapper正在调用的。

Dapper可以实现多个删除插入或更新为QueryMultiple吗？

1 个答案: