Just a FYI about Analyzing...
As of Oracle 8i, Oracle recommends using the DBMS_STATS package instead of
the ANALYZE command or DBMS_UTILITY procedures. The DBMS_STATS package
gathers more statistics than either ANALYZE or the DBMS_UTILITY packages --
potentially resulting in better query performance. In addition, the
DBMS_STATS package can parallelize the gathering of statistics, speeding the
procss.
Do not mix and match your analyze tool usages!!! ANALYZE cannot overwrite or
delete some of the values of statistics that were gathered by DBMS_STATS.
This could cause some EXTREMELY bad query performance -- trust me, I know.
Been there, done that.
Kevin Toepke
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Author: Toepke, Kevin M
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