MySQL-如何获取所有记录在同一表的其他列中

Question

我有一个这样的表（mytable）：

+------------+-----------+----------------+
| id_mytable | id_artist | foreing_column |
+------------+-----------+----------------+
|          1 |         2 |              5 |
|          2 |         1 |              5 |
|          3 |         1 |              2 |
|          4 |         3 |              6 |
+------------+-----------+----------------+

但是我只知道foreign_column列的数字5，知道这个5，我可以得到所有的id_artist（在这种情况下为2和1）

SELECT id_artist FROM `artist_band` WHERE id_band= 5

所以现在的问题是，在这种情况下，我想获取两个id_artist（1，2）的foreign_column，所以我将得到此表：

    +------------+-----------+----------------+
    | id_mytable | id_artist | foreing_column |
    +------------+-----------+----------------+
    |          1 |         2 |              5 |
    |          2 |         1 |              5 |
    |          3 |         1 |              2 |
    +------------+-----------+----------------+

（您知道所有2和所有1都在foreign_column中）

我已经尝试过这样的事情：

(SELECT id_artist FROM `artist_band` as one WHERE id_band= 5)

inner join

(SELECT * FROM `artist_band` as two )

on one.id_artist = two.id_artist

要么：

SELECT * FROM `artist_band` where id_artist =

(SELECT id_artist FROM `artist_band` WHERE id_band= 5)

谢谢。

Answer 1

SELECT *
FROM mytable
WHERE id_artist 
IN 
 (
    SELECT id_artist 
    FROM mytable
    WHERE foreign_column = 5 -- (or whatever)
 )