横恋母在线观看,marcdorcel法国经典电影网,血染红唇,热情的女邻居在线观看,王缨灏,小英雄雨来动画片完整版免费观看,大侦探第七季在线观看

首頁 服務 產(chǎn)品 文檔 關(guān)于

sqlserver去重

select count(*) as H from (select user_id, ROW_NUMBER() OVER (PARTITION BY tb.user_id order by tb.id) rn from? tb where user_id>0) T where rn =1