登入
mysql -h192.168.1.110 -uroot -ppassword
登出
quit/exit
查看数据库
show databases;
用户权限
#添加
grant select on db.table to 'user'@'host';
grant select,update on *.* to 'test'@'%';
#撤销
revoke all on *.* from 'test'@'%';
#查看
show grants;
show grants for user@localhost
#删除用户
delete from mysql.user where user='' and host='';
#设置密码
update mysql.user set password=PASSWORD('123456') where user='root';
#配置远程连接
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
导出
mysqldump -u用户名 -p 数据库名 > 数据库名.sql
mysqldump -uroot -p dbname > filepath.sql
#To export tofile(data only)
mysqldump -u [user]-p[pass]--no-create-db --no-create-info mydb > mydb.sql
#To export tofile(structure only)
mysqldump -u [user]-p[pass]--no-data mydb > mydb.sql
#To import todatabase
mysql -u [user]-p[pass] mydb < mydb.sql
导入
mysql> use dbname #切到要导入的数据库
mysql> source filepath.sql
变量查看/修改
show variables like '%slow%';
set global slow_query_log= 'ON';
show status like 'Qca%';
#查看SQL中select条数
show status like 'Com_sel%'; #显示的是一次会话的值！
show global status like "Com_select";
找回密码？
1、kill -TERM mysqld
2、conf中加入skip-grant-tables
3、service mysqld restart
4、mysql -uroot -p
5、修改密码
6、改回原配置并重启
PURGE BINARY LOGS TO 'mysql-bin.010';
PURGE BINARY LOGS BEFORE '-04-02 22:46:26';
清空表并使自增归0
TRUNCATE TABLE tablename
Mac无法登陆
Can't connect to MySQL server on '127.0.0.1' (61)
StevenMacBookAir:~ Hobo$ sudo su -
StevenMacBookAir:~ root# nohup /usr/local/mysql/bin/mysqld_safe &
[1] 464
StevenMacBookAir:~ root# appending output to nohup.out
exit
logout
StevenMacBookAir:~ Hobo$
