由于group by统计出现null
SELECT count(*) FROM(SELECT count(a.id) FROM temple_volunteer a LEFT JOIN temple_volunteer_recruitment b on a.recruitment_id = b.id WHERE b.temple_id = '1'
and a.status = 1 and a.del_flag = 0 GROUP BY a.id)t
mysql count(*) 返回出现null 嵌套SELECT count(*)
猜你喜欢
转载自blog.csdn.net/weixin_35688029/article/details/81190607
今日推荐
周排行