mysql 创建数据库

guoguos-MacBook-Pro:myblog guoguo$ mysql -uroot -p123456
mysql: [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 3334
Server version: 5.7.12 MySQL Community Server (GPL)

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.
创建库
mysql> create database blog;
Query OK, 1 row affected (0.01 sec)

用户赋权
mysql> grant all privileges on blog.* to 'blog'@'locahost' identified by 'blog';
Query OK, 0 rows affected, 1 warning (0.02 sec)

mysql> grant all privileges on blog.* to 'blog'@'%' identified by 'blog';
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)

mysql> quit
Bye

确认操作
guoguos-MacBook-Pro:myblog guoguo$ mysql -ublog -pblog
mysql: [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 3338
Server version: 5.7.12 MySQL Community Server (GPL)

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>
mysql>
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| blog               |
+--------------------+
2 rows in set (0.00 sec)

mysql> guoguo