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why GATHER_STATS_PROG does not collect stats on certain tables

edited May 23, 2013 3:59AM in SQL Performance (MOSC) 8 commentsAnswered
Hi All,
DB Version : 10g

We observe that there are number of tables did not analyzed as part of DBMS_STATS_PROG job scheduled via DBMS_SCHEDULER. This runs everyday to gather stats on all objects in the database.
However, i dont see the certain tables collected statistics as per LAST_ANALYZED column from dba_tables?

We also have traditional  DBMS_JOB to run dbms_stats.gather_database_stats(estimate_percent=>15 every weekend which shows as last analyzed for those missing tables?
What is the difference between the gather stats job from scheduler & DBMS_JOBS. I believe, both are same? pls correct me if am wrong.

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