Question

我有一个调用多个其他存储过程的存储过程。如果存储过程遇到错误，它是退出还是继续执行其余代码？

如何确保如果一个部分失败，则会打印失败的存储过程并继续执行下一个部分。

E.g

"spInsert_1 fail"
"spInsert_2 sucess"

代码：

CREATE PROCEDURE [dbo].[spInsertAll] 
AS
BEGIN
    SET NOCOUNT ON;

    exec dbo.spInsert_1
    exec dbo.spInsert_2
    exec dbo.spInsert_3
END

Answer 1

从技术上讲，SQL Server默认会为您执行此操作 - 但您可能希望以更优雅的方式执行此操作。这是方式

存储过程1

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE PROCEDURE [dbo].[sp1]
AS
BEGIN
    SET NOCOUNT ON;
    BEGIN TRY
    SELECT 1 
    PRINT 'SP1 is completed'
    END TRY
    BEGIN CATCH
    PRINT 'SP 1 is Failed'
    END CATCH'
END

存储过程2 （将生成错误）

CREATE PROCEDURE [dbo].[sp2]
AS
BEGIN
    SET NOCOUNT ON;
BEGIN TRY
SELECT 1/0 
PRINT 'SP2 is completed'
END TRY
BEGIN CATCH
PRINT 'SP 2 is Failed'
END CATCH
END

存储过程3

CREATE PROCEDURE [dbo].[sp3]
AS
BEGIN

    SET NOCOUNT ON;
    BEGIN TRY
    SELECT 1 
    PRINT 'SP 3 is completed'
    END TRY
    BEGIN CATCH
    PRINT 'SP 3 is Failed'
    END CATCH
END

主存储过程

CREATE PROCEDURE dbo.Mainsp
AS
BEGIN

    SET NOCOUNT ON;

    EXEC dbo.sp1 
    EXEC dbo.sp2 
    EXEC dbo.sp3
END
GO

执行主程序时的消息

 SP 1 is completed 
 SP 2 is Failed 
 SP 3 is completed

即使您不使用TRY-CATCH，SQL也会以所需的方式执行存储过程。您将看到的唯一区别是成功/失败消息。

存储过程错误处理最佳实践

1 个答案: