Database DataWarehousing (MOSC)

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APPROX_GLOBAL AND PARTITION

edited Jan 25, 2013 2:04AM in Database DataWarehousing (MOSC) 4 commentsAnswered
Hi

I have a database 10.2.0.5 and we have to truncate and insert data into partitions and subpartitions. Alos we have some empty partitions which we do not visit for now.

Recently we have found that we can use the APPROX_GLOBAL AND PARTITION parameter to calculate incrementally the statistics. The expected behaviour was to see a calculation of partition statistics and a global aggregation at table level but, clearly, no statsitics calculated at table levele.  

Instead we see that index statistics are also calculated at table level and we had to stop the job because it was taking too much time and replace the script with old parameter PARTITION.

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