Question

我目前正在T / SQL中编写一份特殊报告。

基本上，我有一个包含windows用户名的表，我必须为每个人运行一次存储过程（使用游标）。这可以使用EXECUTE AS USER = 'domain\username'轻松完成。但是，如果用户在生成表后丢失了Windows登录名，则会出现以下错误：

  Could not obtain information about Windows NT group/user 'domain\user', error code 0x5.

此错误会完全停止该过程，这会给我一个错误。有没有办法忽略这条消息，只是跳到下一个光标值？

事先，谢谢 Gunnar S. Knudsen

Answer 1

如果您使用的是SQL 2005或更高版本，则可以使用TRY...CATCH (Transact-SQL)。以下是提供的链接中的示例：

-- Verify that the stored procedure does not already exist.
IF OBJECT_ID ( 'usp_GetErrorInfo', 'P' ) IS NOT NULL 
    DROP PROCEDURE usp_GetErrorInfo;
GO

-- Create procedure to retrieve error information.
CREATE PROCEDURE usp_GetErrorInfo
AS
SELECT
    ERROR_NUMBER() AS ErrorNumber
    ,ERROR_SEVERITY() AS ErrorSeverity
    ,ERROR_STATE() AS ErrorState
    ,ERROR_PROCEDURE() AS ErrorProcedure
    ,ERROR_LINE() AS ErrorLine
    ,ERROR_MESSAGE() AS ErrorMessage;
GO

BEGIN TRY
    -- Generate divide-by-zero error.
    SELECT 1/0;
END TRY
BEGIN CATCH
    -- Execute error retrieval routine.
    EXECUTE usp_GetErrorInfo;
END CATCH;

T / SQL EXECUTE AS，如果错误0x5，则恢复

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