transform oracle query to postgresql - postgresql

Question

I am trying to pass a query from oracle to POSTGRESQL and it has not worked for me, how can I do it? the code is the following:
Oracle:
create function updateinsert
create cursor xx
select id
from "CCRs"
where status = 'POR REGULARIZAR'
and id in (221424,188790);
begin
open cursor xx
loop
update ccrs
set status ='ANULADO',
isActive = false,
cancelationDate = now(),
updatedAt= now()
where id = xx.id;
INSERT INTO public.CCRHistories
(status, createdAt, updatedAt, ccrId, userId)
VALUES('ANULADO', now(), now(),xx.id , 2438);
end loop;
end;

Answer 1

No need for a LOOP or PL/pgSQL. This can be done with a single statement that uses a data modifying common table expression to copy the updated rows into the history table:
with updated as (
update "CCRs"
set status = 'ANULADO',
isActive = false,
cancelationDate = now(),
updatedAt= now()
where id = in (select id
from "CCRs"
where status = 'POR REGULARIZAR'
and id in (221424,188790))
returning id, status
)
INSERT INTO public.CCRHistories (status, createdAt, updatedAt, ccrId, userId)
select status, now(), now(), upd.id, 2438
from updated upd;
If "CCRs".id is unique, you can get rid of the subquery
with updated as (
update "CCRs"
set status = 'ANULADO',
isActive = false,
cancelationDate = now(),
updatedAt= now()
where id in (221424,188790)
and status = 'POR REGULARIZAR'
returning id, status
)
INSERT INTO public.CCRHistories (status, createdAt, updatedAt, ccrId, userId)
select status, now(), now(), upd.id, 2438
from updated upd;

Answer 2

I think that would be everything:
DO $$
declare
registro record;
cur_id cursor for select id
from
"CCRs"
where
status = 'POR REGULARIZAR' and id in (204);
begin
open cur_id;
fetch cur_id
into
registro;
while (found) loop
update
"CCRs"
set
status = 'ANULADO',
isActive = false,
cancelationDate = now(),
updatedAt = now()
where
id = registro.id;
insert
into
CCRHistories
(status,
createdAt,
updatedAt,
ccrId,
userId)
values('ANULADO',
now(),
now(),
registro.id,
2438);
fetch cur_id
into
registro;
end loop;
end $$ LANGUAGE 'plpgsql';