Hi,
I writed something like this below (it works), but in my case for 1,5 milions rows it is not so effective as I need (it will run maybe 2 days) I saw something like BULK COLLECT FETCH FORALL etc. but I am not managing to rewrite my code to this without errors. Can you help me with it? Or do you have some better idea for optimization my simple code?
Thank you
--It is my code for rewriting
DECLARE
cnt NUMBER;
d_min NUMBER;
d_max NUMBER;
i NUMBER := 0;
CURSOR ts_metatata_cur IS select * from (select rownum as rn, id_profile from ts_metadata where typ=7 and per=3600 order by id_profile) where rn between 1 and 100000;
BEGIN
for metadata_rec in ts_metatata_cur
LOOP
XTS.GET_PROFILE_AGGR(metadata_rec.id_profile, cnt, d_min, d_max); --procedure with one IN parameter and three OUT parameter cnt, d_min, d_max
Execute immediate 'insert into TMP_PROFILES_OVERVIEW (id_profile, cnt, d_min, d_max) values (' || metadata_rec.id_profile || ', ' || cnt || ', ' || d_min || ', ' || d_max ||')';
i := i+1;
if (i > 10000) then
commit;
i := 0;
end if;
END LOOP;
commit;
END;
If it is necessary I give here procedure which I call:
--this is procedure, which I call in my script
CREATE OR REPLACE PROCEDURE XTS.GET_PROFILE_AGGR(id_prof IN NUMBER, cnt OUT NUMBER, d_min OUT NUMBER, d_max OUT NUMBER)
AS
res varchar2(61);
BEGIN
select cluster_table_name into res FROM XTS.TIME_SERIES TS where TS.id=id_prof;
Execute immediate 'select nvl(count(*),0), nvl(min(time),0), nvl(max(time),0) from '|| res || ' where time_series_id=' || id_prof || ' ' into cnt, d_min, d_max;
EXCEPTION
when others then
null;
END;