mysql查询，每行的另一个表的max（）

Question

这是我的问题：

SELECT loc.id, loc.nom, loc.prenom, loc.num_tel, loc.num_fixe, bat.adresse, b.date_entree, b.date_sortie, p.date FROM locataires AS loc, bail AS b, apparts AS ap, batiments as bat, clients as cli, paye as p WHERE loc.id = b.idloc AND b.idappart = ap.id AND ap.idbat = bat.id AND bat.idcli = cli. id AND loc.id = b.idloc AND ap.id = b.idappart AND p.idloc = loc.id AND cli.email ="ben@test.be"

此查询提供：

但我想要每个人的最后日期（最多（p.date））

（注意：有人住在同一栋楼里，这就是为什么有些人有相同的地址）

请问好吗？

Answer 1

试试这个。所有其他列都Max(p.date) Group By。

    SELECT loc.id, loc.nom, loc.prenom, loc.num_tel, loc.num_fixe, bat.adresse,
     b.date_entree, b.date_sortie, MAX(p.date) as Date 
    FROM locataires AS loc, bail AS b, apparts AS ap, 
    batiments as bat, clients as cli, paye as p 
    WHERE loc.id = b.idloc AND b.idappart = ap.id AND ap.idbat = bat.id 
AND bat.idcli = cli. id AND loc.id = b.idloc 
AND ap.id = b.idappart AND p.idloc = loc.id 
AND cli.email ="ben@test.be"
    Group By loc.id, loc.nom, loc.prenom, loc.num_tel, loc.num_fixe, bat.adresse,
     b.date_entree, b.date_sortie