Intresting Statistics -- DB FILE SEQUENTIAL READ waits

From: <sat0789_at_fastmail.fm>
Date: Fri, 27 Jun 2003 09:28:12 -0700
Message-ID: <F001.005BB2C7.20030627085941@fatcity.com>

We were running a serial update on a fact table (45 mill rows) using the old tech of
declare
cursor .......table a
begin
  for c1rec in c1 loop
   update fact
    where period_key = c1rec.period_key and loan_key = c1rec.loan_key   ----commit every 10,000 rows
   end loop;
end;  

fACT table partitioned on period key (per month) and there was a unique local index on period_key and loan_key
the update was going at a rate of 10,000 rows every 2 min. very slow... Myself and Madhavan(another avid reader of this list) thought of an idea. W

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