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Mysql卸载 yum remove mysql mysql-server mysql-libs compat-mysql51 rm -rf /var/lib/mysql rm /etc/my.cnf 查看是否还有mysql软件： rpm -qa|grep mysql 有的话继续删除 Mysql安装 1>若本地没有安装包 可以考虑使用yum命令进行下载 # yum -y install mysql-server # yum -y install php-mysql 2>安装后，MySQL自动启动，默认没有用户名和密码，设置新密码 # /usr/bin/mysqladmin -u root password 'aaaaaa' [root@luozhonghua ~]# /usr/bin/mysqladmin -u root password 'aaaaaa' /usr/bin/mysqladmin: connect to server at 'localhost' failed error: 'Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)' Check that mysqld is running and that the socket: '/var/lib/mysql/mysql.sock' exists! 解决： 2.1》/etc/rc.d/init.d/mysqld status 看看mysql是否已经启动 3.2》service mysqld start 3>登录MySQL > mysql -u root -p enter password:’aaaaaa’ 4>赋权连接的主机 #grant select,insert,update,delete on *.* to root@192.168.1.101 identified by 'aaaaaa' grant select,insert,update,delete on *.* to root@127.0.0.1 identified by 'aaaaaa'; 5>更改默认字符集 # cp my-medium.cnf /etc/my.cnf 在[client]下加入 default-character-set=utf8 在[mysqld]下加入 default-character-set=utf8 查找安装路径 Rpm -qa | grep mysql Rpm -ql 包名 [root@luozhonghua charsets]# find /usr -name my-medium.cnf /usr/share/doc/mysql-server-5.1.73/my-medium.cnf /usr/share/mysql/my-medium.cnf #6>设置mysql开机自启动 # vi /etc/rc.local 加入如下一行 #/usr/share/mysql/mysql.server start 7>重新启动MySQL # /etc/init.d/mysql restart service mysqld restart 8>测试; [root@luozhonghua ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.1.73 Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement . mysql> create database xxx -> ; Query OK, 1 row affected (0.06 sec) mysql> ls -> ; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual th at corresponds to your MySQL server version for the right syntax to use near 'ls' at line 1 mysql> show databases -> ; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | test | | xxx | +--------------------+ 4 rows in set (0.06 sec) mysql> use xxx; Database changed mysql> show database -> ; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual th at corresponds to your MySQL server version for the right syntax to use near 'database' at line 1 mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | test | | xxx | +--------------------+ 4 rows in set (0.01 sec) mysql> use xxx; Database changed mysql> create table test( -> int id not null, -> varchar(20) name null); ERROR 1064 (42000): You have an error in your SQL syntax; check the manual th at corresponds to your MySQL server version for the right syntax to use near 'int id not null, varchar(20) name null)' at line 2 mysql> show tables; Empty set (0.00 sec) mysql> create table dbtest ( -> id int , -> name varchar); ERROR 1064 (42000): You have an error in your SQL syntax; check the manual th at corresponds to your MySQL server version for the right syntax to use near ')' at line 3 mysql> create table dbtest ( -> id int, -> name varchar(10)); Query OK, 0 rows affected (0.07 sec) mysql> show tables; +---------------+ | Tables_in_xxx | +---------------+ | dbtest | +---------------+ 1 row in set (0.01 sec) mysql> drop table xxx; ERROR 1051 (42S02): Unknown table 'xxx' mysql> drop table dbtest; Query OK, 0 rows affected (0.00 sec) mysql> ls -> ; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual th at corresponds to your MySQL server version for the right syntax to use near 'ls' at line 1 mysql> show tables; Empty set (0.00 sec) mysql> (责任编辑：IT) |