连续逾期

标签：大连   lag   where   最大   连续   tab   partition   row   name   

• FROM PD WHERE PD_DueDT<=GETDATE() AND PD_Termth>0
  ),
  CTE2 AS
  (
  SELECT
  SUM(FLAG) OVER(PARTITION BY PD_EFH_SN ORDER BY PD_Termth ROWS UNBOUNDED PRECEDING) AS AccuFlag/累计逾期期次/,

• FROM CTE1
  ),
  CTE3 AS
  (
  SELECT
  ID-AccuFlag AS FlagGrp/逾期分组/,

• FROM CTE2
  ),
  CTE4 AS
  (
  SELECT
  SUM(FLAG) OVER (PARTITION BY PD_EFH_SN,FlagGrp) AS CountFlag/分组计数/,

• FROM CTE3 WHERE FLAG=1
  ),
  CTE5 AS
  (
  SELECT
  MAX(CountFlag) OVER (PARTITION BY PD_EFH_SN) AS MaxContFlag/最大连续/,
  MAX(AccuFlag) OVER (PARTITION BY PD_EFH_SN) AS TotFlag/历史累计/,
  IIF(ID=PD_TotTerm,CountFlag,0) AS CurrContFlag/当前累计/,
  ROW_NUMBER() OVER (PARTITION BY PD_EFH_SN ORDER BY PD_Termth DESC) AS CurrTermth,

• FROM CTE4
  )
  SELECT DISTINCT PD_EFH_SN,MaxContFlag,TotFlag,CurrContFlag,‘XFY‘ AS DataSource INTO SPD FROM CTE5 WHERE CurrTermth=1

连续逾期

标签：大连   lag   where   最大   连续   tab   partition   row   name   

原文地址：http://blog.51cto.com/6252164/2323811