How can i make update efficient

Question

Hi,
I have one update statement updating column from value coming from cursor. And its taking time I don't wanna use cursor and update the statement.
<CODE>
DECLARE
CURSOR c1 is select distinct hicn , h from provider_assign_logic;
begin for x in c1
loop
UPDATE provider_assignment_logic p
SET p.provider4 = (SELECT provider_id FROM (SELECT *
FROM provider_assignment3 p3
WHERE hcc = x.hcc
AND trim(hicn) = x.hicn
AND provider_id NOT IN (SELECT provider1
FROM provider_assignment_logic p1
WHERE trim(p1.hicn) = trim(x.hicn)
AND p1.hcc = x.hcc)
AND provider_id NOT IN (SELECT provider2
FROM provider_assignment_logic p1
WHERE trim(p1.hicn) = trim(x.hicn)
AND p1.hcc = x.hcc)
AND provider_id NOT IN (SELECT provider3
FROM provider_assignment_logic p1
WHERE trim(p1.hicn) = trim(x.hicn)
AND p1.hcc = x.hcc)
AND ROWNUM = 1
ORDER BY claim_count,service_date DESC))
WHERE p.hicn = x.hicn
AND p.hcc = x.hcc;
commit;
end loop;
<CODE>
Can you please let me know how i can write update statement efficient without cursor.
Thanks for help!
Appreciated!
Thanks,
Nick
end;

Answer 1

btw it's , not <CODE> - see the FAQ for more formatting tips.
Also there's a COMMIT inside the loop.