It can do multiple tasks at one time, depending on how it is set up. There are some OEM screens to modify its behavior- I usually set it at 2 or 3. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of genegurevich@xxxxxxxxxxxx Sent: Friday, August 14, 2009 9:55 AM To: oracle-l@xxxxxxxxxxxxx Subject: GATHER_STATS_JOB Hello: We have a GATHER_STATS_JOB running daily at 3AM and analyzing tables with stale stats. Does this job analyze these tables one after another or does it run analyze on multiuple tables concurrently? Does anyone know? thank you Gene Gurevich Please consider the environment before printing this email. -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l