DB2 组内分组排序，游标使用

 CREATE PROCEDURE Sys_Init_tblaccountsuser_sortid ()

 P1: BEGIN
     declare not_found condition for sqlstate '';
     DECLARE V_RK_ID INTEGER DEFAULT 0;
     DECLARE V_ID  INTEGER DEFAULT 0;
     DECLARE V_AT_END INT DEFAULT 0;

     DECLARE CUR1 CURSOR WITH RETURN TO CLIENT FOR
         select rk,id from  (select rank() over(partition by ouid order by id asc) rk,t.* from tracing.tblaccountsuser t);

     declare continue handler for not_found set V_AT_END=1;
     -- Cursor left open for client application
     OPEN CUR1;
     ins_loop:
         LOOP
         FETCH CUR1 INTO V_RK_ID,V_ID;
             IF V_AT_END <>0 THEN
                 LEAVE ins_loop;
             END IF;

             update tblaccountsuser set  SORTID = V_RK_ID where id = V_ID ;
         END LOOP;
     CLOSE CUR1;
 END P1