Question

我需要选择memberid计数logins大于10

的

SELECT COUNT(DISTINCT(member.member_id))
FROM member
LEFT JOIN location_member ON (member.member_id = location_member.member_id)
WHERE Month(FROM_UNIXTIME(member.r_date)) = 11
   AND Year(FROM_UNIXTIME(member.r_date)) = 2011
   AND FROM_UNIXTIME(member.r_date, '%d') = 28
   AND member.pc_address_validated <> 1
   **OR (if checkins > 10)**

我写了这个查询：

{{1}}

如何检查计数是否超过10？

Answer 1

SELECT memberId
FROM checkin
GROUP BY memberId
HAVING COUNT(1) > 3

要解决您的新问题：

SELECT member.member_id
FROM member
INNER JOIN checkins ON member.member_id = checkins.member_id
LEFT JOIN location_member ON (member.member_id = location_member.member_id)
WHERE Month(FROM_UNIXTIME(member.r_date)) = 11
   AND Year(FROM_UNIXTIME(member.r_date)) = 2011
   AND FROM_UNIXTIME(member.r_date, '%d') = 28
   AND member.pc_address_validated <> 1
GROUP BY member.member_id
HAVING COUNT(1) > 10

Answer 2

您的查询与此类似，

select ck.memberId,ck.login from Member m join
CheckIn ck on m.id = ck.memberId
group by ck.memberId, ck.login having count(ck.login) > 3

如果连接表的计数大于10，如何选择记录？

2 个答案: