The responsible
- From: Juan Carlos Reyes Pacheco <juancarlosreyesp@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx, jonathan@xxxxxxxxxxxxxxxxxx
- Date: Tue, 7 Feb 2006 12:46:54 -0400
HI I want to share this info, not asking.
Some years ago I changed the optimizer parameters, and this solved a query,
from minutes to seconds
OPTIMIZER_INDEX_COST_ADJ = 10
OPTIMIZER_INDEX_CACHING = 90
Now the situation reversed, and I had to comment them
To move a process from 4 minutes to 7 seconds.
using optimizer parameters 10,90
trace file 870 M
time 4 minutes (without trace)
recursive 465.43 s
non recursive 233.21 s
commenting optimizer parameters and leaving with their defaults
Trace file 6 M
time 7 seconds
recursive 5.87 s
non recursive 1.79 s
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Oracle Certified Profesional 9i 10g
Orace Certified Professional Developer 6i
8 years of experience in Oracle 7,8i,9i,10g and developer 6i
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