sqlserver 触发器实例
实例1:update
USE [数据库名称]
GO
/****** Object: Trigger [dbo].[触发器名称] Script Date:
05/08/2014 12:40:25 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER
ON
GO
ALTER TRIGGER [dbo].[T_触发器名称] ON [dbo].[表名称]
FOR
UPDATE
AS
DECLARE
@Id VARCHAR(32),
@remain_cost
DECIMAL(10,3),
@remain_flow DECIMAL(10,3),
@valid_time
DATETIME;
BEGIN
SET XACT_ABORT ON
BEGIN
TRANSACTION
--SELECT @Id = customer_no, @remain_cost = Balance,@remain_flow =
(MAX_VOLUME - USED_VOLUME) FROM INSERTED;
--insert
openrowset(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘select * from
mysql_authon.Consumer ‘) values(@Id,......)
SELECT @Id = customer_no,
@remain_cost = Balance,@remain_flow = (MAX_VOLUME - USED_VOLUME) FROM
INSERTED;
-- SET @Id = (SELECT customer_no FROM INSERTED);
-- SET
@remain_cost = (SELECT Balance FROM INSERTED);
--SET @remain_flow = (SELECT
(MAX_VOLUME - USED_VOLUME) FROM INSERTED);
-- 查询对本地复制
--SET @sql =
-- SET @type = (SELECT * FROM
OPENROWSET(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘SELECT UserType_id FROM ....
@Id‘))
-- SET @base_cost = (SELECT * FROM
OPENROWSET(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘SELECT Consumer_basecost FROM
.... @Id‘))
-- DELETE FROM
OPENROWSET(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘select * from ....= @Id
‘)
-- INSERT
openrowset(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘select * from
mysql_authon.Consumer ‘) values(@Id,@type,.....)
INSERT INTO 表名称
VALUES(@Id,.....);
COMMIT TRANSACTION
END
实例2:insert
USE [数据库名称]
GO
/****** Object: Trigger [dbo].[触发器名称] Script Date:
05/08/2014 12:47:46 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER
ON
GO
ALTER TRIGGER [dbo].[触发器名称] ON [dbo].[表名称]
FOR
INSERT
AS
DECLARE
@Id VARCHAR(16),
@remain_cost
DECIMAL(10,3),
@remain_flow DECIMAL(10,3),
@valid_time
DATETIME;
BEGIN
SET XACT_ABORT ON
-- SET NOCOUNT ON added to
prevent extra result sets from
-- interfering with SELECT statements.
BEGIN TRANSACTION
SELECT @Id = customer_no........ FROM
INSERTED;
-- insert
openrowset(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘select * from
mysql_authon.Consumer ‘) values(@Id.....)
-- 将数据插入到插入用户临时表
INSERT
INTO dbo.transfer_data_insert_temp2 VALUES(@Id.....);
COMMIT
TRANSACTION
-- Insert statements for trigger here
END
实例3 :delete
USE [数据库名称]
GO
/****** Object: Trigger [dbo].[触发器名称] Script Date:
05/08/2014 12:51:21 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER
ON
GO
ALTER TRIGGER [dbo].[触发器名称] ON [dbo].[表名称]
FOR
DELETE
AS
DECLARE
@Id VARCHAR(16);
BEGIN
SET XACT_ABORT
ON
-- SET NOCOUNT ON added to prevent extra result sets from
--
interfering with SELECT statements.
BEGIN TRANSACTION
SELECT @Id =
customer_no FROM deleted;
-- insert
openrowset(‘MSDASQL‘,‘smysql‘;‘root‘;‘123456‘,‘select * from
mysql_authon.Consumer ‘) values(@Id,....)
-- 将数据插入到插入用户临时表
INSERT
INTO dbo.表名称 VALUES(@Id);
COMMIT TRANSACTION
-- Insert statements for
trigger here
END