My client in
http://www.ora-600.net/careers.html
Now for some obligatory technical content, so that I am not
just a spammer.
Q: When I upgrade to 10g,
do I need to do anything special about stats gathering?
A: By default in 10g,
unless you delete the job, you already have automated stats gathering enabled.
Look at DBA_SCHEDULER_JOBS for a job called ‘GATHER_STATS_JOB’.
If it is there, then 10g is
gathering stats at the specified time on all tables with no stats, and those
with more then 10% of rows changed. Many clients I have encountered are
not aware that stats are being gathered by default in 10g, and they enable their old 9i stats jobs from cron or elsewhere, which
causes unpredictable optimizer behavior.
HTH,
Jeremiah Wilton
ORA-600 Consulting
Recoveries – Consulting – Hiring –
Seminars