MySQL绿色版的安装（mysql-5.6.22-win32.zip）

 1 # For advice on how to change settings please see  2 # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html  3 # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the  4 # *** default location during install, and will be replaced if you  5 # *** upgrade to a newer version of MySQL.  6  7 [mysqld]  8  9 # Remove leading # and set to the amount of RAM for the most important data 10 # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. 11 innodb_buffer_pool_size = 128M 12 13 # Remove leading # to turn on a very important data integrity option: logging 14 # changes to the binary log between backups. 15 # log_bin 16 17 # These are commonly set, remove the # and set as required. 18 #mysql根目录 19 basedir ="C:\Program Files\mysql-5.6.22-win32" 20 #数据文件存放目录 21 datadir ="C:\Program Files\mysql-5.6.22-win32\data" 22 # port = .....   端口，默认3306 23 # server_id = .....  服务实例的唯一标识 24 25 26 # Remove leading # to set options mainly useful for reporting servers. 27 # The server defaults are faster for transactions and fast SELECTs. 28 # Adjust sizes as needed, experiment to find the optimal values. 29 # join_buffer_size = 128M 30 # sort_buffer_size = 2M 31 # read_rnd_buffer_size = 2M 32 33 sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 34 #服务端的编码方式 35 character-set-server=utf8 36 [client] 37 #客户端编码方式，最好和服务端保存一致 38 loose-default-character-set = utf8 39 40 [WinMySQLadmin] 41 Server = "C:\Program Files\mysql-5.6.22-win32\bin\mysqld.exe"

x:\>mysql -u root -p 密码 //登录系统
mysql> use mysql; //切换数据库
mysql> update user set host = '%' where user = 'root'; //上面这句话有时出现一个错误  ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY' //不过这时你查询一下user表发现已经更新一条记录了,下面这句话
mysql> select host, user from user; //直接执行这句,其实就是刷新权限
mysql> flush privileges;