2016年5月25日
mysql去重
select a.id,a.ssmz,(select count(ssmz) from shop_tourist_key b where b.ssmz=a.ssmz) as count from shop_tourist_key a WHERE a.ssmz is not null group by Read More
posted @ 2016-05-25 13:47 小安妮的熊 Views(196) Comments(0) Diggs(0) Edit