1.INSERT INTO SELECT語句 語句形式為：Insert into Table2(field1,field2,...) select value1,value2,... from Table1要求目標表Table2必須存在，由于目標表Table2已經存在，所以我們除了插入源表Table1的字段外，還可以插入常量。示例如下：INSERT INTO SELECT語句復制表數據--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)GOselect * from Table2--3.INSERT INTO SELECT語句復制表數據 Insert into Table2(a, c, d) select a,c,5 from Table1GO--4.顯示更新后的結果 select * from Table2GO--5.刪除測試表 drop TABLE Table1drop TABLE Table22.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，并將Table1中指定字段數據復制到Table2中。示例如下：SELECT INTO FROM創建表并復制表數據--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]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--3.SELECT INTO FROM語句創建表Table2并復制數據 select a,c INTO Table2 from Table1GO--4.顯示更新后的結果 select * from Table2GO--5.刪除測試表 drop TABLE Table1drop TABLE Table2

總結

以上是生活随笔為你收集整理的select into from 与 insert into select 区别鉴赏的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。