Question

我有一个以xml作为输入的存储过程。

执行SP的C＃代码是

using (SqlConnection conn = new SqlConnection(connString))
{
    try
    {
        conn.Open();
        SqlCommand command = new SqlCommand("sp_Configure_Users", conn);
        command.CommandType = CommandType.StoredProcedure;
        var xmlData = new SqlParameter(parameterName: "@XMLDATA", value: GenerateXML(_userDetails));
        command.Parameters.Add(xmlData);

        count = command.ExecuteNonQuery();
        if (count > 0)
        {
            return count;
        }
        else
        {
            return 0;
        }
    }
    catch (SqlException  )
    {

    }
}

方法GenerateXML返回一个xml数据形式的字符串。在我的存储过程中，我删除了SET NOCOUNT ON，以便在插入，删除或更新时返回实际的行数。如果我运行我的查询示例xml数据： -

<UserCollection>
    <InsertList><Users User_Id="438"  First_Name="Praveen"  Middle_Name=""  Last_Name="Kumar"  Designation_Id="1"  Email="" Contact_Number="96533"  Updated_By="pkumar"  />
    </InsertList>
    <UpdateList></UpdateList>
    <DeleteList></DeleteList>
</UserCollection>

返回的值是3而不是1，因为在我的集合中我只传递了一行需要插入的行。因为没有更新或删除的行。如果必须返回SP，SP如何返回3 1 ??

存储的Proc是

  set ANSI_NULLS ON
  set QUOTED_IDENTIFIER ON
   go



  ALTER PROCEDURE [dbo].[sp_Configure_Users]
@XMLDATA xml
  AS
 DECLARE @Users_Staging Table(
[User_Id] [int] NOT NULL,
[First_Name] [varchar](200) NOT NULL,
[Middle_Name] [varchar](200) NULL,
[Last_Name] [varchar](200) NOT NULL,
[Designation_Id] [int] NOT NULL,
[Email] [varchar](250) NOT NULL,
[Contact_Number] [varchar](50) NOT NULL,
[Updated_By] [varchar](255) NOT NULL
  )

  BEGIN

  Set nocount off
  Go    

  BEGIN TRY
  BEGIN TRANSACTION


  DECLARE @CurrDate datetime;
  SELECT @CurrDate = GETDATE();
   -- Insert statements for procedure 
  INSERT INTO Users
  ([User_Id]
  ,[First_Name]
  ,[Middle_Name]
  ,[Last_Name]
  ,[Designation_Id]
  ,[Email]
  ,[Contact_Number]
  ,[Updated_By]
  ,[Updated_Date]
  )
  Select    
XMLDATA.item.value('@User_Id[1]', 'int') AS User_Id,    
XMLDATA.item.value('@First_Name[1]', 'varchar(200)') AS First_Name,
XMLDATA.item.value('@Middle_Name[1]', 'varchar(200)') AS Middle_Name,
XMLDATA.item.value('@Last_Name[1]', 'varchar(200)') AS Last_Name,
XMLDATA.item.value('@Designation_Id[1]', 'int') AS Designation_Id,
XMLDATA.item.value('@Email[1]', 'varchar(250)') AS Email,
XMLDATA.item.value('@Contact_Number[1]', 'varchar(50)') AS Contact_Number,
XMLDATA.item.value('@Updated_By[1]', 'varchar(255)') AS Updated_By,
@CurrDate
  FROM @XMLDATA.nodes('//UserCollection/InsertList/Users') AS XMLDATA(item)

  -- Update statements for procedure 

  INSERT INTO @Users_Staging
       ([User_Id]
  ,[First_Name]
  ,[Middle_Name]
  ,[Last_Name]
  ,[Designation_Id]
  ,[Email]
  ,[Contact_Number]
  ,[Updated_By])

Select  
XMLDATA.item.value('@User_Id[1]', 'int') AS User_Id,    
XMLDATA.item.value('@First_Name[1]', 'varchar(200)') AS First_Name,
XMLDATA.item.value('@Middle_Name[1]', 'varchar(200)') AS Middle_Name,
XMLDATA.item.value('@Last_Name[1]', 'varchar(200)') AS Last_Name,
XMLDATA.item.value('@Designation_Id[1]', 'int') AS Designation_Id,
XMLDATA.item.value('@Email[1]', 'varchar(250)') AS Email,
   XMLDATA.item.value('@Contact_Number[1]', 'varchar(50)') AS Contact_Number,
XMLDATA.item.value('@Updated_By[1]', 'varchar(255)') AS Updated_By
  FROM @XMLDATA.nodes('//UserCollection/InsertList/Users') AS XMLDATA(item)


  UPDATE Users 
  SET First_Name=stgusr.First_Name,
  Middle_Name=stgusr.Middle_Name,
  Last_Name=stgusr.Last_Name,
  Email=stgusr.Email,
  Contact_Number=stgusr.Contact_Number,
  Updated_By=stgusr.Updated_By,
  Updated_Date=@CurrDate
  FROM Users usr INNER JOIN
  @Users_Staging stgusr
  ON usr.User_Id=stgusr.User_Id

-- Delete statements for procedure 

   DELETE Users
   WHERE User_Id
     IN (Select         
    XMLDATA.item.value('@User_Id[1]', 'int') AS User_Id
FROM @XMLDATA.nodes('//UserCollection/DeleteList/Users') AS XMLDATA(item))

   COMMIT TRANSACTION;

   END TRY

   BEGIN CATCH
--EXEC sp_rethrow_error;
ROLLBACK TRANSACTION;
    END CATCH; 
   END

Answer 1

如果存储过程更新/插入的表上有触发器，它们将影响受影响的行数：

对于UPDATE，INSERT和DELETE语句，返回值为受命令影响的行数。当a上存在触发器时正在插入或更新的表，返回值包括数字受插入或更新操作影响的行数和数字受触发器或触发器影响的行数。对于所有其他类型的语句，返回值为-1。如果发生回滚，则返回值也是-1 Ref

建议您发布所涉及的表的存储过程和模式/触发器。

ExecuteNonQuery返回随机数而不是返回实际行

1 个答案: