表結構及數(shù)據(jù)如上,請使用Sql語句,統(tǒng)計出每輛汽車每天行駛的里程數(shù)。 汽車編號(CarID)總里程(Mileage)年(M_Year)月(M_Month)日(M_Day)1102015111152015121152015151202015161252015171272015181302015191302015110132201511122020151102402015111250201511231420151131820151103312015120 統(tǒng)計結果:汽車編號(CarID)里程(Mileage)年(M_Year)月(M_Month)日(M_Day)110201511152015121020151515201516 Sql server 2012 中可以用 LAG 函數(shù),參考如下文章。。http://www.cnblogs.com/bluedoctor/p/4901259.html 表結構及測試數(shù)據(jù)腳本:
Sql server 2008 對表字段 統(tǒng)計增量的問題
largeQ
2018-08-14 10:09:16