mysql 的查询嵌套有关问题
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2024-02-04 09:48:34
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mysql 的查询嵌套问题。
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.*, 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相关文章
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