1、进入MYSQL
输入命令： mysql -P3306 -uroot -p123456
说明：3306 为端口，root为数据库用户名，123456为数据库密码
成功进入后显示：
Welcome to the MySQL monitor. Commands end with ; or g.Your MySQL connection id is 4Server version: 5.1.63-log Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
2、查看下数据库
mysql> show databases;
显示：
+--------------------+| Database |+--------------------+| information_schema || mysql || test |+--------------------+3 rows in set (0.00 se
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3、使用数据库mysql
mysql> use mysqlDatabase changedmysql> show tables;+---------------------------+| Tables_in_mysql |+---------------------------+| columns_priv || db || event || func || general_log || help_category || help_keyword || help_relation || help_topic || host || ndb_binlog_index || plugin || proc || procs_priv || servers || slow_log || tables_priv || time_zone || time_zone_leap_second || time_zone_name || time_zone_transition || time_zone_transition_type || user |+---------------------------+23 rows in set (0.03 sec)
4、查看下数据库表结构
mysql> desc user;+-----------------------+-----------------------------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+-----------------------+-----------------------------------+------+-----+---------+-------+| Host | char(60) | NO | PRI | | || User | char(16) | NO | PRI | | || Password | char(41) | NO | | | || Select_priv | enum('N','Y') | NO | | N | || Insert_priv | enum('N','Y') | NO | | N | || Update_priv | enum('N','Y') | NO | | N | || Delete_priv | enum('N','Y') | NO | | N | || Create_priv | enum('N','Y') | NO | | N | || Drop_priv | enum('N','Y') | NO | | N | || Reload_priv | enum('N','Y') | NO | | N | || Shutdown_priv | enum('N','Y') | NO | | N | || Process_priv | enum('N','Y') | NO | | N | || File_priv | enum('N','Y') | NO | | N | || Grant_priv | enum('N','Y') | NO | | N | || References_priv | enum('N','Y') | NO | | N | || Index_priv | enum('N','Y') | NO | | N | || Alter_priv | enum('N','Y') | NO | | N | || Show_db_priv | enum('N','Y') | NO | | N | || Super_priv | enum('N','Y') | NO | | N | || Create_tmp_table_priv | enum('N','Y') | NO | | N | || Lock_tables_priv | enum('N','Y') | NO | | N | || Execute_priv | enum('N','Y') | NO | | N | || Repl_slave_priv | enum('N','Y') | NO | | N | || Repl_client_priv | enum('N','Y') | NO | | N | || Create_view_priv | enum('N','Y') | NO | | N | || Show_view_priv | enum('N','Y') | NO | | N | || Create_routine_priv | enum('N','Y') | NO | | N | || Alter_routine_priv | enum('N','Y') | NO | | N | || Create_user_priv | enum('N','Y') | NO | | N | || Event_priv | enum('N','Y') | NO | | N | || Trigger_priv | enum('N','Y') | NO | | N | || ssl_type | enum('','ANY','X509','SPECIFIED') | NO | | | || ssl_cipher | blob | NO | | NULL | || x509_issuer | blob | NO | | NULL | || x509_subject | blob | NO | | NULL | || max_questions | int(11) unsigned | NO | | 0 | || max_updates | int(11) unsigned | NO | | 0 | || max_connections | int(11) unsigned | NO | | 0 | || max_user_connections | int(11) unsigned | NO | | 0 | |+-----------------------+-----------------------------------+------+-----+---------+-------+39 rows in set (0.00 sec)
5、查询下记录
mysql> select Host,User,Password from user;+-----------+------+-------------------------------------------+| Host | User | Password |+-----------+------+-------------------------------------------+| localhost | root | *D62D55684130064FEAE65A809A6FC756F6503C83 |+-----------+------+-------------------------------------------+1 row in set (0.00 sec)
6、直接修改该条记录
mysql> update user set Host='%' where Host='localhost';Query OK, 1 row affected (0.00 sec)Rows matched: 1 Changed: 1 Warnings: 0
7、可以通过远程连接看看，可以用客户端navicat
