问题描述
select t1.no as "aNo",t3.noCou as "Sum" from ta t1 left join (select count(t2.bno) as "noCou", t2.bno as "bbno" from tb t2 group by t2.bno) t3 on t3.bbno = t1.ano此处为什么不能使用t3.bbno = t1.ano另外t3.noCou as "Sum"处怎么才能取得临时表t3的列希望各位在不修改查询语句结构下给点建议
解决方案
你这句没错啊
解决方案二:
貌似 没错
时间: 2024-11-03 06:19:53