MySQL5.5中
mysql> grant all on *.* to oldboy@'%' identified by '123456' with grant option; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
用户：oldboy@'%'，远程和本地都可以登录MySQL
MySQL5.6中
mysql> grant all on *.* to oldboy@'%' identified by '123456' with grant option; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
用户：oldboy@'%'，远程可以登录MySQL，但是本地登录就会报错，报错如下：
[root@szxsfb02-db-56 3306]# mysql -uoldboy -p123456 -S /data/3306/mysql.sock Warning: Using a password on the command line interface can be insecure. ERROR 1045 (28000): Access denied for user 'oldboy'@'localhost' (using password: YES)
要想本地登录必须本地授权
mysql> grant all on *.* to oldboy@localhost identified by '123456' with grant option; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
然后再本地登录即可
[root@szxsfb02-db-56 3306]# mysql -uoldboy -p123456 -S /data/3306/mysql.sock Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 20 Server version: 5.6.34 Source distribution Copyright (c) 2000, 2016, 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>
