Question

我正在创建一堆用于在数据库中添加，更新和删除的存储过程我正在为学校做一个项目。我想使用try catch和一个标志告诉用户是否成功。我正在使用SQL Server 2005，我有基本的存储过程，但想要添加它以使我的项目更好。我一直在关键字集附近得到一个SQL错误不正确的语法。这是我的代码：

CREATE PROCEDURE dbo.addCustomer 
-- Add the parameters for the stored procedure here
@flag bit output, --return 1 for success and 0 for fail
@Customer_ID varchar(50),
@sales_region varchar(50),
@Items_Recieved varchar(max),
@Hual_ID varchar(50)
AS
BEGIN
BEGIN TRANSACTION
BEGIN TRY
INSERT into dbo.Customer(Customer_ID,Sales_region, Items_Recieved, Hual_ID)
values(@Customer_ID,@sales_region, @Items_Recieved, @Hual_ID  
set @flag=1;
IF @@TRANCOUNT>0
BEGIN commit TRANSACTION;
END
END TRY
BEGIN CATCH
IF @@TRANCOUNT>0
BEGIN rollback TRANSACTION;
END

set @flag=0;
END CATCH
END

GO

任何人都可以指出我正确的方向，我确信我做了一些简单的错误，或者忘了做某事。感谢。

Answer 1

CREATE PROCEDURE dbo.addCustomer 
-- Add the parameters for the stored procedure here
@flag bit output, --return 1 for success and 0 for fail
@Customer_ID varchar(50),
@sales_region varchar(50),
@Items_Recieved varchar(max),
@Hual_ID varchar(50)
AS
BEGIN
     SET NOCOUNT ON;               
 BEGIN TRY

    BEGIN TRANSACTION
        INSERT INTO dbo.Customer(Customer_ID,Sales_region, Items_Recieved, Hual_ID)
        VALUES(@Customer_ID,@sales_region, @Items_Recieved, @Hual_ID)  
    COMMIT TRANSACTION;

       SET @flag=1;
  END TRY

  BEGIN CATCH
      IF (@@TRANCOUNT > 0)
       BEGIN 
         ROLLBACK TRANSACTION;
       END

    SET @flag=0; 
     --  Utilise your other Error Functions to get detailed 
     -- Information about the Error, function like 
     --  ERROR_LINE(), ERROR_MESSAGE(), ERROR_NUMBER()....
  END CATCH

END
GO

什么是在存储过程中使用try catch的正确方法

1 个答案: