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@ -29,7 +29,7 @@ WHERE student.name = '小明'
```
## SQL解释
### 功能描述
【UI旧】输入SQL，选中执行并传入附加信息，附加信息可以添加希望解释《输入SQL》哪方面的信息，如SQL执行目标，则会返回此条SQL附加信息相关的解释
输入SQL，选中执行并传入附加信息，附加信息可以添加希望解释《输入SQL》哪方面的信息，如SQL执行目标，则会返回此条SQL附加信息相关的解释
- 输入样例：SELECT department_name FROM departments WHERE department_id IN (SELECT department_id FROM employees GROUP BY department_id HAVING COUNT(*) > 10)
- 输出样例：这个SQL查询语句的意思是：从departments表中选择department_name列，其中department_id列的值在employees表中department_id列的值分组后，如果该组中的记录数大于10，则返回该department_id。换句话说，这个查询语句返回的是在employees表中有超过10个员工的部门名称。
## SQL优化