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select into 和insert into select

2024-09-22 18:54:27   218人阅读

select into:

　　创建测试语句

create database MyDemoTest
go
use MyDemoTest
go
create table A
(
    a int primary key,
    b int,
)
go
insert into A values(1,1),
(2,2),
(3,3)

　　执行核心语句:

select a,b into B from A

　　执行结果:

技术分享

　　由这个结果我们可以知道,B表在插入的时候并不存在

 insert into select:

 

drop table B
create table B
(
    a int primary key,
    b int,
)
go
insert into B(a,b) select a,b from A

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select into 和insert into select


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