从已经创建的表中选择特定的行来创建MySQL表？

要从已创建的表创建表，请使用CREATETABLEASSELECT语句。让我们首先创建一个表-

create table DemoTable1318 -> ( -> Id int, -> FirstName varchar(10), -> LastName varchar(10), -> Age int -> );

使用插入命令在表中插入一些记录-

insert into DemoTable1318 values(1,Chris,Brown,21); insert into DemoTable1318 values(2,David,Miller,24); insert into DemoTable1318 values(3,Carol,Taylor,23);

使用select语句显示表中的所有记录-

select * from DemoTable1318;

输出结果

+------+-----------+----------+------+ | Id | FirstName | LastName | Age | +------+-----------+----------+------+ | 1 | Chris | Brown | 21 | | 2 | David | Miller | 24 | | 3 | Carol | Taylor | 23 | +------+-----------+----------+------+ 3 rows in set (0.00 sec)

以下是从已创建的表中选择特定行来创建表的查询-

create table DemoTable1319 -> as select *from DemoTable1318 -> where Age IN(21,23); Records: 2 Duplicates: 0 Warnings: 0

使用select语句显示表中的所有记录-

select * from DemoTable1319;

输出结果

+------+-----------+----------+------+ | Id | FirstName | LastName | Age | +------+-----------+----------+------+ | 1 | Chris | Brown | 21 | | 3 | Carol | Taylor | 23 | +------+-----------+----------+------+ 2 rows in set (0.00 sec)