表中数据的批量插入

--数据的批量插入

 

if exists(select name from sys.databases where name='DB_Test')

drop database DB_Test

go

 

create database DB_Test

go

 

use DB_Test

go

 

if exists(select name from sys.objects where name='T_Table1')

drop table T_Table1

go

 

create table T_Table1

(

    a nvarchar(10),--姓

    b nvarchar(10),--性别

    c int,--年龄

    constraint PK_T_Table1_a primary key(a)

)

go

 

insert into T_Table1 values('张','男',20)

insert into T_Table1 values('李','男',22)

insert into T_Table1 values('姚','女',20)

go

 

select * from T_Table1

go

 

if exists(select name from sys.objects where name='T_Table2')

drop table T_Table2

go

 

create table T_Table2

(

    d nvarchar(10),

    e nvarchar(10),

    f int,

    constraint PK_T_Table2_d primary key(d)

)

go

 

--批量插入第一种方式：(目标表一定要存在)

insert into T_Table2(d,e,f) select a,b,c from T_Table1

go

 

insert into T_Table2(d,e,f) select a,b,20 from T_Table1

go

 

insert into T_Table2(d,e) select a,b from T_Table1

go

 

select * from T_Table2

go

 

--第二种方式:(目标表不存在)

if exists(select name from sys.objects where name='T_Table2')

drop table T_Table2

go

 

select a,b,c into T_Table2 from T_Table1

go

 

select a,b into T_Table2 from T_Table1

go

 

select * from T_Table2

go