SQLServer-存储过程中的简单事务处理

一. 添加记录

需要事务支持,如果上下文环境中不存在事务,新启动一个事务,否则利用已存在的事务.

-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE PROCEDURE [dbo].[AddJob]
@jobName nvarchar(50),
@added bit output
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

DECLARE @errorCode int
SET @errorCode = 0

--Transaction identity. 1:Created a new transaction. 0:Use old transaction.
DECLARE @tranStarted bit
SET @tranStarted = 0

--Create a new transaction if there is not a transaction.
IF( @@TRANCOUNT = 0 )
BEGIN
BEGIN TRANSACTION
SET @tranStarted = 1
END
ELSE
SET @tranStarted = 0

--Adding operation.
INSERT INTO dbo.Job(JobName)
VALUES (@jobName)

IF ( @@ERROR <> 0 )
BEGIN
SET @errorCode = -1
GOTO Cleanup
END

IF ( @tranStarted = 1 )
BEGIN
SET @tranStarted = 0
COMMIT TRANSACTION
END

SET @added = 1
RETURN(0)

--Error handler.
Cleanup:
IF( @tranStarted = 1 )
BEGIN
SET @tranStarted = 0
ROLLBACK TRANSACTION
END

SET @added = 0
RETURN @errorCode
END
二. 删除记录(同上)
需要事务支持,如果上下文环境中不存在事务,新启动一个事务,否则利用已存在的事务.
三. 修改记录(同上)
需要事务支持,如果上下文环境中不存在事务,新启动一个事务,否则利用已存在的事务.
四. 查询记录
不需要事务支持.
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE PROCEDURE [dbo].[GetAllJob]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

SELECT JobId, JobName
FROM Job
END

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/fishinthewind/archive/2007/05/15/1610771.aspx