数据库Day3之SQL Server 触发器

最近在做一个人事管理系统写了几个简单的触发器

1.在删除员工信息表中员工信息时结果区提示被删除员工信息

create trigger test
on 员工信息表
after delete
as
select 工号 as 被删除员工工号,姓名,电话 from deleted
go
2.在删除信息时比如开除员工在其他表中也删除对应员工信息

create trigger yuan_delete on 员工信息表
after delete
as
declare @工号 char(10)
select @工号=工号 from deleted
delete from 签约信息表 where 工号=@工号
delete from 就职信息表 where 工号=@工号
delete from 学历信息表 where 工号=@工号
go
3.删除员工信息后添加员工信息到对应的离职信息表

CREATE TRIGGER yuan_lizhi ON 员工信息表
AFTER DELETE
AS
declare @工号 char(10)
select @工号=工号 from deleted
INSERT INTO 离职信息表
values
(@工号,CONVERT(varchar,GETDATE(),120) ,(select 姓名 from deleted),(select 性别 from deleted),(select 电话 from deleted),(select 出生日期 from deleted),(select 住址 from deleted),(select 部门编号 from 就职信息表 where 工号=@工号),(select 职位编号 from 就职信息表 where 工号=@工号))
GO
4.根据员工的加班天数矿工天数确定工资

CREATE TRIGGER test2 ON 考核记录表
AFTER INSERT
AS
declare @a char(10),@b bigint,@c bigint,@d char(10),@e varchar(10),@date date,@salary1 int,@salary2 int,@salary3 int,@sa int
begin
set @b=3000000001
set @c=@b+(SELECT COUNT(*) FROM 发薪记录表)
set @a=cast(@c as char(10))
set @e=(CONVERT(varchar(10),GETDATE(),120))
set @date=cast(@e as varchar(30))
set @d=(select 工号 from inserted)
set @sa=(select 底薪 from 员工底薪表
where @d=工号)
set @salary1= (select 旷工天数 from inserted)*100
set @salary2=(select 加班天数 from inserted)*50
set @salary3=(@sa)+@salary2-@salary1

insert into 发薪记录表
values(@a,@date,@d,@sa,@salary2,@salary1,@salary3)
end
GO
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