sql server 批量删除数据
创建表1
1 create table #table1 (
2
3 id int primary key identity(1,1),
4 msg varchar(24),
5 loc varchar(24),
6 style varchar(24)
7 )
创建表2
1 --表2
2 create table #table2 (
3
4 msg varchar(20),
5 loc varchar(20),
6
7 money1 money
8
9
10 )
插入数据
1 insert into #table1 (msg,loc,style) values ( 2 '张三','山西','教师' 3 4 ) 5 insert into #table1 (msg,loc,style) values ( 6 '李四','山东','医生' 7 8 ) 9 insert into #table1 (msg,loc,style) values ( 10 '王五','山西','农民' 11 12 ) 13 insert into #table1 (msg,loc,style) values ( 14 '赵六','山东','工人' 15 16 )
1 insert into #table2 (msg,loc,money1) values (
2
3
4 '张三','山西',20
5
6
7 )
8 insert into #table2 (msg,loc,money1) values (
9
10
11 '李四','山东',30
12
13
14 )
15 insert into #table2 (msg,loc,money1) values (
16
17
18 '王五','山西',10
19
20
21 )
22 insert into #table2 (msg,loc,money1) values (
23
24
25 '赵六','山东',15
26
27
28 )
执行后 界面
现需求:
-- 现要求删除职业大于15 的人员
delete a from #table1 as a
inner join #table2 as b
with(nolock) on a.msg =b.msg and a.loc =b.loc
where isnull(b.money1,0)>15
红色:关联表
黄色:表
紫色:关联项
蓝色:条件
执行语句后 界面
