# 创建用户

Joe 要给数据组的 John 创建一个用户，他希望John 能够从 `192.168.7.42` 登录 goods 数据库查询数据，
用户第一次登录时使用密码 `goods123`，登录后必须设定一个新密码，那么应该用哪个语句？

<hr/>

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* `show databases` 列出所有数据库
* `show tables` 列出所有表

## 答案

```mysql
create user 'john'@'192.168.7.42' identified by 'goods123' password expire;
grant select on goods.* to 'john'@'192.168.7.42';
flush privileges;
```

## 选项

### A

```mysql
create user 'john'@'192.168.7.42' identified by 'goods123';
grant select on goods.* to 'john'@'192.168.7.42';
flush privileges;
```

### B

```mysql
create user 'john'@'192.168.7.42' identified by 'goods123';
grant usage on goods.* to 'john'@'192.168.7.42';
flush privileges;
```

### C

```mysql
create user 'john'@'192.168.7.42' identified by 'goods123' on database goods;
flush privileges;
```