Which session generates the most db_writes?
Is there a query for which oracle session is responsible for the major part of the db_writes?Our version of DB is 9.2.0.8.
Select
SID,
user name,
round (100 * total_user_io/total_io, 2) tot_io_pct
Of
(select
Select sid,
NVL (b.UserName, p.Name) username,
MySQL total_user_io
Of
sys. V_$ statName c,.
sys. V_$ SESSTAT a,.
b sys. V_$ session,.
sys. V_$ bgprocess p
where
a.Statistic #= c.Statistic # and
p.pAddr (+) = b.paddr and
Select a.sid = and
c.Name in ("physical readings",
"physical Scriptures."
"direct physical Scriptures."
"direct physical reads,"
"physical Scriptures directly (lob).
("physical reads directly (lob)")
Group
Select, nvl (b.username, p.name)),
(select
MySQL total_io
Of
sys. V_$ statName c,.
sys. V_$ SESSTAT a
where
a.Statistic #= c.Statistic # and
c.Name in ("physical readings",
"physical Scriptures."
"direct physical Scriptures."
"direct physical reads,"
"physical Scriptures directly (lob).
(("physical reads directly (lob)"))
order by
3 / / desc;
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