在MySQL中使用INSERT INTO SELECT和UNION执行多次插入

要执行多次插入，语法如下：

insert into yourTableName(yourColumnName1,yourColumnName2,yourColumnName3,..N) select yourValue1 as yourColumnName1,yourValue2 as yourColumnName2,yourValue3 as yourColumnName3,......N union select yourValue1 as yourColumnName1,yourValue2 as yourColumnName2,yourValue3 as yourColumnName3,......N . . N

要了解上述语法，让我们创建一个表-

create table DemoTable1936 ( StudentId int, StudentName varchar(20), StudentCountryName varchar(20) );

使用插入命令在表中插入一些记录-

insert into DemoTable1936(StudentId,StudentName,StudentCountryName) select 1001 as StudentId,Chris as StudentName,US as StudentCountryName union select 1002 as StudentId,Robert as StudentName,UK as StudentCountryName union select 1003 as StudentId,David as StudentName,AUS as StudentCountryName; Records: 3 Duplicates: 0 Warnings: 0

使用select语句显示表中的所有记录-

select * from DemoTable1936;

这将产生以下输出-

+-----------+-------------+--------------------+ | StudentId | StudentName | StudentCountryName | +-----------+-------------+--------------------+ | 1001 | Chris | US | | 1002 | Robert | UK | | 1003 | David | AUS | +-----------+-------------+--------------------+ 3 rows in set (0.00 sec)