mysql 命令

1.查看数据库：　　　

mysql> show databases;

2.使用数据库

mysql> use mysqldata;

3.查看数据表

mysql> show tables;

4.新建数据表：

mysql> create table mytable (name varchar(20),sex char(1));
Query OK, 0 rows affected (0.45 sec)

5.查看表结构：

mysql> describe mytable;
+-------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+-------+
| name | varchar(20) | YES | | NULL | |
| sex | char(1) | YES | | NULL | |
+-------+-------------+------+-----+---------+-------+
2 rows in set (0.08 sec)

6.表添加数据：

mysql> insert into mytable values('zhanglixia','M');
Query OK, 1 row affected (0.10 sec)

7.删除数据库：

mysql> drop table mytable;

8.更改表数据：

mysql> update mytable set sex='f' where name ='zhanglixia';
Query OK, 1 row affected (0.07 sec)
9.清空表数据：

mysql> delete from mytable;
Query OK, 1 row affected (0.07 sec)