Home >Backend Development >PHP Tutorial >mysql 的查询嵌套有关问题

mysql 的查询嵌套有关问题

WBOY
WBOYOriginal
2016-06-13 10:32:26892browse

mysql 的查询嵌套问题。

SQL code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->select a.*,  d.sell_countfrom borough as a left join (  select da.* from (    select count(db.id) as sell_count,db.borough_id from housesell as db      where db.borough_id = a.id    ) as da  ) as dwhere a.is_checked = 1 order by id desc LIMIT 0, 10


请问,left join 里面的
where db.borough_id = a.id 这一句会报错。请问大家有什么方式来实现嘛。



------解决方案--------------------
把ORDER BY a.id 改成group by
SQL code
SELECT a.*,  COUNT(db.id) AS sell_count FROM  borough AS a LEFT JOIN housesell AS db ON( db.borough_id = a.id)WHERE a.is_checked = 1 GROUP BY a.idORDER BY id DESC LIMIT 0, 10<div class="clear">
                 
              
              
        
            </div>
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn