sqlserver中临时表、row-number、update更新自己

      
        SELECT
      
      
        *
      
      
        INTO
      
       #TempStudent 
      
        FROM
      
      
        

(
      
      
        SELECT
      
       id, ROW_NUMBER() 
      
        OVER
      
      (
      
        ORDER
      
      
        BY
      
       id) RowNum  
      
        FROM
      
      
         dbo.student) NewT




      
      
        UPDATE
      
       dbo.student 
      
        SET
      
       score
      
        =
      
      
        #TempStudent.RowNum


      
      
        FROM
      
       dbo.student stu 
      
        LEFT
      
      
        JOIN
      
      
         #TempStudent


      
      
        ON
      
       stu.id
      
        =
      
      #TempStudent.id
    

      
        UPDATE
      
       dbo.PMS_Commodity 
      
        SET
      
       C_ModifyTime
      
        =
      
      
        GETDATE
      
      
        ()


      
      
        FROM
      
       dbo.PMS_Commodity pc 
      
        LEFT
      
      
        JOIN
      
      
        

dbo.PMS_CommodityProduct cp 
      
      
        ON
      
       pc.C_ID
      
        =
      
      
        cp.C_CommodityID


      
      
        LEFT
      
      
        JOIN
      
       dbo.PMS_Product pp 
      
        ON
      
       pp.C_ID
      
        =
      
      
        cp.C_ProductID


      
      
        WHERE
      
       C_ProductID
      
        =
      
      
        '
      
      
        2F06EF2E-DEBB-494A-82AC-0022B3BE8608
      
      
        '