为什么在sql server 2005中使用xml时必须设置ARITHABORT？

Question

为什么在sql server 2005中使用xml时必须设置ARITHABORT？我试着研究为什么我要设置这个,但找不到告诉我原因的答案.只需要设置它.

这是我在取出SET ARITHABORT ON时获得的特定错误消息:

PARAMETER ERROR:INSERT LIST可能无法分配 - INSERT失败,因为以下SET选项的设置不正确:'ARITHABORT'.验证SET选项是否正确,以便与计算列和/或查询通知和/或xml数据类型方法的索引视图和/或索引一起使用.

我的存储过程在一个环境中使用odbc从asp.net调用很好.然后,当我将它移动到另一个时,我必须在存储过程的开头添加SET ARITHABORT ON.我在下面列出了存储过程的相关部分.以及调用它的代码.

CREATE PROCEDURE [dbo].[myproc]
   @ruserid             varchar(8),
   @folder_list         xml,
   @insert_list         xml
AS

SET NOCOUNT ON
SET ARITHABORT ON

DECLARE @rindex integer
DECLARE @errormsg nvarchar(4000)
DECLARE @folder_cnt integer
DECLARE @insert_cnt integer


SET @rindex = -1

-- temp table to hold inserts
CREATE TABLE #insert_list (rowidx integer IDENTITY(1,1), insertdesc varchar(96) COLLATE database_default, insertfolder integer)

-- temp table to hold folders
CREATE TABLE #folder_list (rowidx integer IDENTITY(1,1), folderdesc varchar(144) COLLATE database_default, insertfolder integer)

-- insert inserts to make sure data is compatible in type
BEGIN TRY
   INSERT INTO #insert_list (insertdesc, insertfolder)
   SELECT insert_list.listitem.value('@insertdesc', 'varchar(96)'), insert_list.listitem.value('@insertfolder', 'integer')
   FROM @insert_list.nodes('/Root/Insert') AS insert_list(listitem)
END TRY
BEGIN CATCH
   SET @errormsg = N'PARAMETER ERROR: INSERT LIST COULD NOT BE PARSED - ' + ERROR_MESSAGE()
   RAISERROR(@errormsg, 16, 1)
   RETURN
END CATCH

-- insert folders to make sure data is compatible in type
BEGIN TRY
   INSERT INTO #folder_list (insertfolder, folderdesc)
   SELECT folder_list.listitem.value('@insertfolder', 'integer'), folder_list.listitem.value('@folderdesc', 'varchar(144)')
   FROM @folder_list.nodes('/Root/Folder') AS folder_list(listitem)
END TRY
BEGIN CATCH
   SET @errormsg = N'PARAMETER ERROR: FOLDER LIST COULD NOT BE PARSED - ' + ERROR_MESSAGE()
   RAISERROR(@errormsg, 16, 1)
   RETURN
END CATCH

-- insert rows
BEGIN TRANSACTION

BEGIN TRY

INSERT INTO my_folder_request (ruserid)
VALUES ( @ruserid )

SET @rindex = SCOPE_IDENTITY()

INSERT INTO my_insert_request (rindex, insertdesc, insertfolder)
SELECT @rindex, #insert_list.insertdesc, #insert_list.insertfolder
FROM #insert_list
ORDER BY #insert_list.rowidx

INSERT INTO my_folder_desc (rindex, insertfolder, folderdesc)
SELECT @rindex, #folder_list.insertfolder, #folder_list.folderdesc
FROM #folder_list
ORDER BY #folder_list.rowidx

END TRY
BEGIN CATCH
   IF @@TRANCOUNT > 0
      ROLLBACK TRANSACTION
   SET @errormsg = N'DATA INSERTION FAILED WITH MESSAGE - ' + ERROR_MESSAGE()
   RAISERROR(@errormsg, 16, 1)
   RETURN
END CATCH

IF @@TRANCOUNT > 0
   COMMIT TRANSACTION

-- return result
SELECT @rindex AS rindex

DROP TABLE #insert_list
DROP TABLE #folder_list

GO           

致电代码

  ' build odbc command for inserting creation request
  intRequestIndex = 0
  cmdAddRequest = New System.Data.Odbc.OdbcCommand
  cmdAddRequest.CommandType = CommandType.StoredProcedure
  cmdAddRequest.CommandTimeout = 60
  cmdAddRequest.CommandText = "{CALL myproc ( ?, ?, ?)}"

  ' add parameters to odbc command
  cmdAddRequest.Parameters.Add("@ruserid", OdbcType.VarChar, 8).Value = SafeODBCParamString(m_strUID)
  cmdAddRequest.Parameters.Add("@folder_list", OdbcType.NText).Value = System.Text.Encoding.Unicode.GetString(strmFolderList.ToArray())
  cmdAddRequest.Parameters.Add("@insert_list", OdbcType.NText).Value = System.Text.Encoding.Unicode.GetString(strmInsertList.ToArray())

  ' run odbc command returning info about results
  cmdAddRequest.Connection = Me.ODBCConnection()
  Try
     rdrRequestData = cmdAddRequest.ExecuteReader(CommandBehavior.CloseConnection) 

Answer 1

我在网上的书中想到这句话有点暗示:"当您在计算列或索引视图上创建或更改索引时,SET ARITHABORT必须为ON." 因此,nodes方法必须在内部或其他方面创建索引视图.但这只是一个有根据的猜测.

Answer 2

这是从.Net客户端调用带有xml输入参数的存储过程时发现的ARITHABORT问题的解决方案。

using (var conn = new SqlConnection(dbConnectionString))  
{  
    SqlCommand command = new SqlCommand("[stored procedure name here]", conn);  
    command.CommandType = CommandType.StoredProcedure;  
    command.Parameters.AddWithValue("@parameter_name", parameter_xml_value);  

    conn.Open();  

    SqlCommand arithabortCommand = new SqlCommand("SET ARITHABORT ON", conn);  
    arithabortCommand.ExecuteNonQuery();  

    command.ExecuteNonQuery();  
    conn.Close();  
} // using (var conn = new SqlConnection(dbConnectionString))