mysql> create table teacher # 创建teacher表
-> (
-> Id int (5) auto_increment not null primary key,
-> name char(10) not null,
-> address varchar(50) default 'No.1 Mid school',
-> year date
-> );
Query OK, 0 rows affected (0.02 sec)
mysql> show tables;
+------------------+
| Tables_in_school |
+------------------+
| teacher |
+------------------+
1 row in set (0.00 sec)
mysql> show full columns from teacher; # 显示teacher表的所有字段
+---------+-------------+-------------------+------+-----+-----------------+----------------+---------------------------------+---------+
| Field | Type | Collation | Null | Key | Default | Extra | Privileges | Comment |
+---------+-------------+-------------------+------+-----+-----------------+----------------+---------------------------------+---------+
| Id | int(5) | NULL | NO | PRI | NULL | auto_increment | select,insert,update,references | |
| name | char(10) | latin1_swedish_ci | NO | | NULL | | select,insert,update,references | |
| address | varchar(50) | latin1_swedish_ci | YES | | No.1 Mid school | | select,insert,update,references | |
| year | date | NULL | YES | | NULL | | select,insert,update,references | |
+---------+-------------+-------------------+------+-----+-----------------+----------------+---------------------------------+---------+
4 rows in set (0.01 sec)
mysql> drop table teacher; # 删除teacher表
Query OK, 0 rows affected (0.03 sec)
mysql> show tables;
Empty set (0.00 sec)
mysql>
