小编Mic*_*hig的帖子

我想用增量号更新我的列CODE_DEST.我有:

CODE_DEST   RS_NOM
null        qsdf
null        sdfqsdfqsdf
null        qsdfqsdf

我想将其更新为:

CODE_DEST   RS_NOM
1           qsdf
2           sdfqsdfqsdf
3           qsdfqsdf

我试过这段代码:

UPDATE DESTINATAIRE_TEMP
SET CODE_DEST = TheId 
FROM (SELECT  Row_Number()   OVER (ORDER BY [RS_NOM]) AS TheId FROM DESTINATAIRE_TEMP)

这不起作用,因为 )

我也尝试过:

WITH DESTINATAIRE_TEMP AS
  (
    SELECT 
    ROW_NUMBER() OVER (ORDER BY [RS_NOM] DESC) AS RN
    FROM DESTINATAIRE_TEMP
  )
UPDATE DESTINATAIRE_TEMP SET CODE_DEST=RN

但由于结合,这也行不通.

如何使用ROW_NUMBER()SQL Server 2008 R2中的函数更新列？