# 1050. 合作过至少三次的演员和导演

### Link

{% embed url="<https://leetcode.cn/problems/actors-and-directors-who-cooperated-at-least-three-times/>" %}

### Problem

写一条SQL查询语句获取合作过至少三次的演员和导演的 id 对 `(actor_id, director_id)`

示例 1：

{% code overflow="wrap" %}

```
ActorDirector 表：
+-------------+-------------+-------------+
| actor_id    | director_id | timestamp   |
+-------------+-------------+-------------+
| 1           | 1           | 0           |
| 1           | 1           | 1           |
| 1           | 1           | 2           |
| 1           | 2           | 3           |
| 1           | 2           | 4           |
| 2           | 1           | 5           |
| 2           | 1           | 6           |
+-------------+-------------+-------------+

Result 表：
+-------------+-------------+
| actor_id    | director_id |
+-------------+-------------+
| 1           | 1           |
+-------------+-------------+
唯一的 id 对是 (1, 1)，他们恰好合作了 3 次。
```

{% endcode %}

### Solution

{% tabs %}
{% tab title="MySQL" %}

```sql
# Write your MySQL query statement below
select actor_id, director_id from ActorDirector
group by actor_id, director_id
having count(*)>=3
```

{% endtab %}
{% endtabs %}