Question

使用此查询，它会在第一页显示所有featured=1条记录，然后在第二页显示所有记录。

$sql = "(select * from `property` where (`city`='33') AND (`featured` = '1') LIMIT 5)
       UNION ALL (select * from `property` where (`city`='33') AND (`featured` = '0') LIMIT 5) LIMIT 0,10 ";

我想显示featured=1的5条记录和featured=0的5条记录我想到的最后一个限制存在问题，因为当我删除最后的限制它显示我的所有记录所有页面都featured=1，但内部限制出现问题。

echo $sql = "(select * from `property` where (`city`='33') AND (`featured` = '1') LIMIT 5)
             UNION ALL (select * from `property` where (`city`='33') AND (`featured` = '0') LIMIT 5) ";

Answer 1

如果您想获得featured = '1'的5条记录并将其与5条featured = '0'记录合并，请执行以下操作：

(select * from `property` where (`city`='33') AND (`featured` = '1') LIMIT 5)
UNION ALL 
(select * from `property` where (`city`='33') AND (`featured` = '0') LIMIT 5)

在限制时，我在联合所有查询中都有一个问题

1 个答案: