Question

我的存储过程声明如下所示：

alter procedure [dbo].[usp_A_MySproc] 
@aID int,
@bID int,
@cID int

我的应用层代码：

 using (var transaction = Session.Transaction)
 {
    try
      {
           transaction.Begin();
           Session.CreateSQLQuery("exec usp_A_MySproc ?, ?, ?")
              .SetParameter("aID", 1)
              .SetParameter("bID", 2)
              .SetParameter("cID", 3);
               transaction.Commit();;
      }
 }

异常：“无法找到命名参数[aID]”

你能看错吗？

谢谢！

Answer 1

nhibernate

Session.CreateSQLQuery("exec usp_A_MySproc @aID = 1, @bID =2, @cID = 3")

或

IQuery query = Session.CreateSQLQuery("exec usp_A_MySproc @aID =:aID, @bID =:bID , @cID =:cID");
query.SetInt32("aID",1);
query.SetInt32("bID",2);
query.SetInt32("cID",3);
query.ExecuteUpdate();

或与你正在做的事情相匹配

Session.CreateSQLQuery("exec usp_A_MySproc @aID =:aID, @bID =:bID , @cID =:cID")
    .SetParameter("aID", 1)
    .SetParameter("bID", 2)
    .SetParameter("cID", 3);

要使用SqlCommand修改以下代码，connectionString代表您的连接字符串

using (SqlConnection con = new SqlConnection(connectionString))
{    
    SqlCommand cmd = new SqlCommand("usp_A_MySproc ", con);
    cmd.CommandType = CommandType.StoredProcedure;

    cmd.Parameters.Add("@aID", SqlDbType.Int32).Value = 1;
    cmd.Parameters.Add("@bID", SqlDbType.Int32).Value = 2;
    cmd.Parameters.Add("@cID", SqlDbType.Int32).Value = 3;

    try
    {
        con.Open();
        cmd.ExecuteNonQuery();
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

或

using (SqlConnection con = new SqlConnection(connectionString))
{    
    SqlCommand cmd = new SqlCommand("usp_A_MySproc ", con);
    cmd.CommandType = CommandType.StoredProcedure;

    cmd.Parameters.AddWithValue("@aID", 1) ;
    cmd.Parameters.AddWithValue("@bID", 2) ;
    cmd.Parameters.AddWithValue("@cID", 3) ;

    try
    {
        con.Open();
        cmd.ExecuteNonQuery();
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

参考有关SQLCommand的MSDN文章如何正确添加参数

http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.parameters(v=vs.110).aspx

Answer 2

您需要按位置设置参数：

 using (var transaction = Session.BeginTransaction())
 {

    Session.CreateSQLQuery("exec usp_A_MySproc ?, ?, ?")
          .SetInt32(0, aIDValue)
          .SetInt32(1, bIDValue)
          .SetInt32(2, cIDValue)
          .ExecuteUpdate();

          transaction.Commit();
 }

将参数传递给存储过程

2 个答案: