1.SELECT INTO FROM語句
語句形式為：SELECT vale1, value2 into Table2 from Table1
要求目標表Table2不存在，因為在插入時會自動創建表Table2，並將Table1中指定字段數據復制到Table2中，請注意vale1,vale2一定要是Table1有的字段，否則就會出錯
。示例如下：
View Code
1 --1.創建測試表
2 create TABLE Table1
3 (
4 a varchar(10),
5 b varchar(10),
6 c varchar(10),
7 CONSTRAINT [PK_Table1] PRIMARY KEY CLUSTERED
8 (
9 a ASC
10 )
11 ) ON [PRIMARY]
12 GO
13
14 --2.創建測試數據
15 Insert into Table1 values('趙','asds','90')
16 Insert into Table1 values('錢','asds','100')
17 Insert into Table1 values('孫','asds','80')
18 Insert into Table1 values('李','asds',null)
19 GO
20
21 --3.SELECT INTO FROM語句創建表Table2並復制數據
22 select a,c INTO Table2 from Table1
23 GO
如果像這樣：
select count(*) into Table2 from table1
就會出錯，因為Table1沒有count(*)這個字段。
2、insert into from語句
語句形式為：Insert into Table2(field1,field2,...) select value1,value2,... from Table1
View Code
--1.創建測試表
create TABLE Table1
(
a varchar(10),
b varchar(10),
c varchar(10),
CONSTRAINT [PK_Table1] PRIMARY KEY CLUSTERED
(
a ASC
)
) ON [PRIMARY]
create TABLE Table2
(
a varchar(10),
c varchar(10),
d int,
CONSTRAINT [PK_Table2] PRIMARY KEY CLUSTERED
(
a ASC
)
) ON [PRIMARY]
GO
--2.創建測試數據
Insert into Table1 values('趙','asds','90')
Insert into Table1 values('錢','asds','100')
Insert into Table1 values('孫','asds','80')
Insert into Table1 values('李','asds',null)
GO
select * from Table2
--3.INSERT INTO SELECT語句復制表數據
Insert into Table2(a, c, d) select a,c,5 from Table1
GO
從Table1表中查詢出a,c數據插入到Table2表。