Question

表1：用户   字段：id，email，first_name

表2：资源   字段：user_id，product_id

我想从用户表中选择电子邮件，first_name，其中用户有product_id 22但不是产品ID 1,3或35

提取此列表的SQL是什么？

Answer 1

SELECT u.email,
       u.first_name
FROM   users u
       JOIN resources r
         ON u.id = r.user_id
WHERE  product_id IN ( 1, 3, 22, 35 )
GROUP  BY u.id,
          u.email,
          u.first_name
HAVING COUNT(DISTINCT product_id = 1)
       AND MAX(product_id) = 22

Answer 2

select email, first_name 
from users
where id in (select user_id from resources where product_id=22)
and id not in (select user_id from resources where product_id IN (1,3,35))

帮助SQL语句（选择具有产品A但不包含产品B，C或D的用户）

2 个答案: