1
SELECT plaka, party_id, sum(inf) i
FROM party_sehir
GROUP BY party_id, plaka
具有最大值这是我的子查询的结果是:MySQL的子查询和子查询
plaka party_id i
34 1 42
34 2 9
35 1 11
35 2 26
从这些结果我想每一个plaka
和行party_id
的最大i
,这样:
plaka party_id i
34 1 42
35 2 26
我的意思是每个plaka
的最大值。我也试过:
SELECT *
FROM (SELECT plaka, party_id, sum(inf) i
FROM party_sehir
GROUP BY party_id, plaka) t1
GROUP BY plaka
HAVING i >= max(i)
它没有工作;任何人都可以提供帮助吗?
谢谢
返回空查询 –
尝试组编辑,会你再试一次? – hkutluay