如何在单个语句中执行select?

和OMG小马的答案差不多。排号是你的朋友。我不完全确定位字段是否被视为您想要的,但您知道这一点。和以往一样,最好对您选择的字段进行明确的说明,但我很懒惰。

create table #table 
(
    idHearing int,
    idCase int,
    startDate datetime,
    starttime datetime,
    isscheduled bit,
    isoncalendar bit
);
insert into #table values(1,1,'8/2/2010','3:30:00 PM',1,1)
insert into #table values(2,1,'8/2/2010','3:30:00 PM',1,0)
insert into #table values(3,2,'8/3/2010','5:30:00 PM',1,1)
insert into #table values(4,2,'8/4/2010','9:30:00 PM',1,1)
insert into #table values(5,3,'8/2/2010','3:00:00 PM',1,1)

select * from
(
    select 
        row_number() 
            over 
            (partition by idcase order by 
                startdate desc,
                starttime desc,
                isscheduled desc,
                isoncalendar desc
            ) idCasePosition,
        * 
    from #table
) x
where idCasePosition=1

drop table #table

用途:

CREATE VIEW vw_summary AS
WITH example AS (
    SELECT t.idcase,
           t.startdate,
           t.startime,
           t.isscheduled,
           t.isoncalendar,
           ROW_NUMBER() OVER (PARTITION BY t.idcase ORDER BY t.startdate DESC, 
                                                             t.starttime DESC, 
                                                             t.isscheduled DESC,
                                                             t.isoncalendar DESC) AS rank
      FROM TABLE t)
SELECT e.*
  FROM example e
 WHERE e.rank = 1

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