role.md

# 角色

Joe 现在是团队的 DBA，公司数据分析组有 Fred、Alice、James、Jone 四位成员，现在Joe需要给数据分析组授权，允许他们
查询 MySQL 8 服务器 goods 数据库中的所有表，*规范*的操作应该是

<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 role analysis;
grant analysis to fred, alice, james, jone;
grant select on  goods.* to analysis;
flush privileges;
```

## 选项

### 将来人员变动管理会很繁琐

```mysql
grant select on goods.* to fred, alice, james, jone;
```

### 错误的语法

```mysql
create role analysis;
grant analysis to fred, alice, james, jone;
grant all on all tables in schema goods to analysis;
flush privileges;
```

### 过度授权

```mysql
create role analysis;
grant analysis to fred, alice, james, jone;
grant select on *.* to analysis;
flush privileges ;
```