使用MySQL LIKE创建类似于常规表的临时表
让我们首先创建一个表-
mysql> create table DemoTable1 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(100) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1(Name) values('Chris');
mysql> insert into DemoTable1(Name) values('Robert');
mysql> insert into DemoTable1(Name) values('Mike');
mysql> insert into DemoTable1(Name) values('Sam');使用select语句显示表中的所有记录-
mysql> select *from DemoTable1;
这将产生以下输出-
+----+--------+ | Id | Name | +----+--------+ | 1 | Chris | | 2 | Robert | | 3 | Mike | | 4 | Sam | +----+--------+ 4 rows in set (0.00 sec)
以下是创建类似于常规表的临时表的查询-
mysql> create temporary table DemoTable2 like DemoTable1;
让我们检查表的描述-
mysql> desc DemoTable2;
这将产生以下输出-
+-------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+--------------+------+-----+---------+----------------+ | Id | int(11) | NO | PRI | NULL | auto_increment | | Name | varchar(100) | YES | | NULL | NULL | +-------+--------------+------+-----+---------+----------------+ 2 rows in set (0.04 sec)