Question

我需要经常使用TRY..CATCH块执行存储过程。因此，我编写了一个包含TRY..CATCH块+输入参数的存储过程：

CREATE PROCEDURE [dbo].[exec_sp_with_try_catch] 
    (@pnvcSPName NVARCHAR(100))
AS
    DECLARE @ErrorMessage NVARCHAR(4000);
    DECLARE @ErrorSeverity INT;
    DECLARE @ErrorState INT;
BEGIN
    BEGIN TRY
        exec @pnvcSPName;
    END TRY
    BEGIN CATCH
        SELECT @ErrorMessage = ERROR_MESSAGE(),
              @ErrorSeverity = ERROR_SEVERITY(),
              @ErrorState = ERROR_STATE();

        RAISERROR(@ErrorMessage, -- Message text.
                @ErrorSeverity, -- Severity.
                @ErrorState -- State.
        );

        IF XACT_STATE() <> 0
          ROLLBACK TRANSACTION;
    END CATCH

END;

然后我可以直接使用上面的存储过程，如果我想用try...catch块执行存储过程：

exec [dbo].[exec_sp_with_try_catch] @pnvcSPName = '[dbo].[another_sp]';

但是，只有当我们不使用[dbo].[another_sp]中的任何参数时，上述方法才有效。

如果我们在[dbo].[another_sp]中使用参数：

exec [dbo].[exec_sp_with_try_catch] @pnvcSPName = '[dbo].[another_sp] @para = ''K''';

它会抛出以下错误：

Msg 50000，Level 16，State 2，Procedure exec_sp_with_try_catch，Line 30
名称'[dbo]。[another_sp] @para ='K''不是有效的标识符。

为什么以及如何纠正它？

Answer 1

试试这个：

CREATE PROCEDURE [dbo].[exec_sp_with_try_catch] 
@pnvcSPName NVARCHAR(100) ,
@para NVARCHAR(100)
AS
DECLARE @ErrorMessage NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
BEGIN

    BEGIN TRY
        exec @pnvcSPName @para;
    END TRY
    BEGIN CATCH
        SELECT @ErrorMessage = ERROR_MESSAGE(),
              @ErrorSeverity = ERROR_SEVERITY(),
              @ErrorState = ERROR_STATE();

        RAISERROR(@ErrorMessage, -- Message text.
                @ErrorSeverity, -- Severity.
                @ErrorState -- State.
        );

        IF XACT_STATE() <> 0
          ROLLBACK TRANSACTION;
    END CATCH

END;

exec dbo.exec_sp_with_try_catch '[dbo].[another_sp]','K';

Answer 2

这样做

CREATE PROCEDURE [dbo].[exec_sp_with_try_catch] (@pnvcSPName NVARCHAR(100))
AS
DECLARE @ErrorMessage NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
BEGIN

    BEGIN TRY
        EXEC sys.sp_executesql @pnvcSPName; --pay attention on possible need of escaping ' char here
    END TRY
    BEGIN CATCH
        SELECT @ErrorMessage = ERROR_MESSAGE(),
              @ErrorSeverity = ERROR_SEVERITY(),
              @ErrorState = ERROR_STATE();

        RAISERROR(@ErrorMessage, -- Message text.
                @ErrorSeverity, -- Severity.
                @ErrorState -- State.
        );

        IF XACT_STATE() <> 0
          ROLLBACK TRANSACTION;
    END CATCH

END;

SQL Server 2012 - 将存储过程名称传递给另一个存储过程

2 个答案: