MySQL第一课 指令学习

登陆命令

C:\Program Files\MySQL\MySQL Server5.7\bin>mysql.exe -h 120.77.155.115 -P 3316 -u

root–p

查看当前所有的用户

select distinct concat(‘User:‘‘‘,user,‘‘‘@‘‘‘,host,‘‘‘:‘) as query from mysql.user;

查看用户的权限

select * from mysql.user where user=‘root‘\G

修改配置文件/etc/my.cnf 配慢查询

slow_query_log = 1

slow_query_log_file = /mysql_slow_query.log

命令设置

set global slow_query_log=1;

查看修改状态

show global status like ‘%slow%‘;

测试慢查询

SELECT SLEEP(10);