oracle 2个数组列，剔除数组重复的数据。

一、下面这样不规则的，数据如何剔除掉。循环筛选replace替换掉。

序号　　　　　　　　正常时间　　　　　　　　　　　　　　　　　　　　　剔除时间

1    2022-12-19,2022-12-20,2022-12-21,2022-12-22,2022-12-23              2022-12-19,2022-12-23
2    2022-12-21,2022-12-22,2022-12-23,2022-12-24,2022-12-25              2022-12-23,2022-12-24,2022-12-25

二、得到的结果。

序号　　　　　　剔除后的时间　　　　　　　　　　　　　　　　　　　　    剔除时间

1    2022-12-20,2022-12-21,2022-12-22              　　　　　　　　　　  2022-12-19,2022-12-23
2    2022-12-21,2022-12-22             　　　　　　　　　　　　　　　　 2022-12-23,2022-12-24,2022-12-25

三、存储函数。

create or replace function F_WORKTIME(p_StartDate  varchar2,p_EndDate  varchar2, List   varchar2)
return  worktime_Table PIPELINED
as
   v   WorkTime_ROW;
   id number;
   worktime DATE;
   stopworktime DATE;
   p_StopTimevarray VARCHAR2(100);
   stoparrays varchar2(200);
   workarraysAll VARCHAR2(100);
CURSOR cur IS  select
                  t.c0084_id as id,
                  t.c0084_worktime as worktime,
                  t.c0084_stopworktime as stopworktimefrom t0084_apply_zy t
                  inner join t0080_buildproject_zy t1
                  on t1.c0080_pjt_id=t.c0080_pjt_id
                  inner join t0003_area t2
                  on t2.t0003_areaid=t1.c0003_stcode
                  inner join T0511_USERINFO t0511 on
                  t1.c0080_logid=t0511.c0511_logid
                  where (t.c0084_state=7 or t.c0084_state=12 or t.c0084_state=14)
                  and p_StartDate>=substr(c0084_worktime,0,10)
                  and p_EndDate<=substr(c0084_worktime,instr(c0084_worktime,',',-1,1)+1,10)
                  and t2.t0003_areaid in (select * from table(strtab(to_char(List))));
CURSOR curstop IS select regexp_substr(p_StopTimevarray,'[^,]+',1,level) as stoparrays
from dual
connect by level<=length(p_StopTimevarray)-length(replace(p_StopTimevarray,','))+1;
begin
  for temp in cur loop
     p_StopTimevarray:=temp.stopworktime;
     workarraysAll:=temp.worktime;
                  for tempstop in curstop loop
                    if tempstop.stoparrays is not null then
                    workarraysAll:=replace(concat(workarraysAll,','),concat(tempstop.stoparrays,','));
                    end if;

  end loop ;
         v := WorkTime_ROW(temp.id,trim(trailing ',' from workarraysAll));
         PIPE ROW (v);
     end loop;
   RETURN;
end F_WORKTIME;