Un articol excelent despre stabilitatea planurilor de executie in 10G :
articol original : http://oracle-randolf.blogspot.com/2009/03/plan-stability-in-10g-using-existing.html
via : http://forums.oracle.com/
Nested MVs - A recent client was seeing a very large redo penalty from refreshing materialized views. Unfortunately they had to be refreshed very frequently, and were b...
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