您好,欢迎来到二三娱乐。
搜索
您的当前位置:首页mysql using issue

mysql using issue

来源:二三娱乐

sql1 数据量14

select t1.orderId,count(1) from xishiqu.xsq_order t1
join xishiqu.xsq_event t2 on t1.eventId=t2.eventId
where date(t1.pubTime)='2017-12-18'
group by t1.orderId
order by 2 desc

sql2 数据量1138806

select t1.orderId,count(1) from xishiqu.xsq_order t1
join xishiqu.xsq_event t2 on using(eventId)
where date(t1.pubTime)='2017-12-18'
group by t1.orderId
order by 2 desc

我一定是用了假的mysql

Copyright © 2019- yule263.com 版权所有

违法及侵权请联系:TEL:199 1889 7713 E-MAIL:2724546146@qq.com

本站由北京市万商天勤律师事务所王兴未律师提供法律服务