数据仓库服务 GAUSSDB(DWS)-以$开头的对象名称迁移:QUALIFY、CASE和ORDER BY

时间：2024-11-16 13:21:55

QUALIFY、CASE和ORDER BY

输入：

select 
   a.Cust_UID as Cust_UID          /*   UID */
  ,a.Rtl_Usr_Id as Ini_CM          /*        */
  ,a.Cntr_Aprv_Dt as Aprv_Pass_Tm          /*        */
  ,a.Blg_Org_Id as CM_BRN_Nbr          /*         */
  ,a.Mng_Chg_Typ_Cd  as MNG_CHG_TYP_CD          /*          */
  ,case when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'PMD' and a.Pst_Id in ('PB0101','PB0104') then 'Y' ----        ,        
       when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DEVPMD' and a.Pst_Id ='PB0106'  then 'Y' ----            
       when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DMD' and a.Pst_Id in ('PB0201','PB0204') then 'Y' ----        ,        
      when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DEVDMD' and a.Pst_Id ='PB0109'  then 'Y' ----            ,
       else ''
end  as Pst_Flg          /*      */
  ,a.Pst_Id as Pst_Id          /*      */
  ,a.BBK_Org_Id  as BBK_Org_Id          /*        */
from VT_CUID_MND_NMN_CHG_INF as a          /* VT_         */
LEFT OUTER JOIN ${BRTL_VCOR}.BRTL_EM_USR_PST_REL_INF_S as b          /* EM_           */
  on  a.Rtl_Usr_Id = b.Rtl_Usr_Id          
  AND a.Blg_Org_Id  = b.BRN_Org_Id           
  AND a.Pst_Id = b.Pst_Id          
  AND b.Sys_Id = 'privatebanking'           
  AND b.pst_sts IN ('1','0','-2') /*     1   -2   0  */          
  AND b.DW_Snsh_Dt =  cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd')          
qualify   row_number() over(partition by a.Cust_UID,a.bbk_org_id order by 
case when ( a.Mng_Chg_Typ_Cd= 'PMD'    and   a.Pst_Id in ('PB0101','PB0104')) or ( a.Mng_Chg_Typ_Cd= 'DEVPMD'    and   a.Pst_Id ='PB0106')   
then 0 when  (a.Mng_Chg_Typ_Cd= 'DMD' and a.Pst_Id in ('PB0201','PB0204')) or    (a.Mng_Chg_Typ_Cd= 'DEVDMD' and a.Pst_Id ='PB0109 ')   then 0 else 1 end  asc )  = 1         
;

输出：

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