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  • sql server 数据排名

    城市排名列表

    SELECT c.sheng ,m.city, RANK() OVER (ORDER BY round(avg(cast(indexs as float)),3)) AS px,
             round(avg(cast(pm25 as float)),0) pm25, round(avg(cast(pm10 as float)),0) pm10, round(avg(cast(co as float)),3) co, 
            round(avg(cast(no2 as float)),0) no2, round(avg(cast(so2 as float)),0) so2,round(avg(cast(o3_8 as float)),0) o3_8,round(avg(cast(indexs as float)),3) indexs,round(avg(cast(aqi as float)),0) aqi
              FROM monitor_city_hour m,cd_city c
              where m.city=c.city and
              datetime='2017-03-04 12:00:00' and aqi!=0 and pm25!=0 and pm25 is not null
              group by c.sheng,m.city
              order by indexs

    某城市一段时间的排名曲线

     select fdate time,px,aqi from(
            SELECT fdate,city,RANK() OVER (partition by fdate ORDER BY aqi) AS px,aqi
              FROM monitor_city_day 
              where  aqi!=0 and pm25!=0 and pm25 is not null
              and cast(fdate as datetime)>=cast('2017-02-01' as datetime) and
              cast(fdate as datetime)<=cast('2017-03-05' as datetime)
              )a where city='北京'
              order by cast(fdate as datetime)
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  • 原文地址:https://www.cnblogs.com/tiandi/p/6606139.html
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