选择数据库中所有搜索到的ID

Question

SELECT name FROM users 
WHERE id=(SELECT added_id FROM relations 
          WHERE status='1' AND adding_id=2);

有这个，但我需要搜索与此搜索匹配的所有名称。

Answer 1

你做错了是使用=而不是in条款。

SELECT name FROM users 
WHERE id in (SELECT added_id FROM relations 
WHERE status='1' AND adding_id=2);