依據排序字段，篩選兩條相同記錄中最新的那一條

 

 

 

 

 

 

 

 

如上表排序字段爲flowcount，當askid與status相同時，須要篩選出flowcount最大（即最新）的那一條記錄

SELECT  auditid, askid, status, flowcount FROM
(
       SELECT ROW_NUMBER() OVER(PARTITION BY askid, status ORDER BY flowcount DESC) LEV,
              auditid, askid, status, flowcount
       FROM TESTYIBAN s
)
WHERE LEV = 1;