Temporary table vs pl\sql table
- From: "Amihay Gonen" <AmihayG@xxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 30 Nov 2005 10:42:58 +0200
Hi , I've a process which need to do a lot of processing (summaries) on a large
set of data.
The main flow is as follow:
copy the new rows since last run (up to defined row count) to a temporary
table.
Run various selects with group by on the temporary table and merge them into
summary table.
I wander (I will conduct some tests ofcourse ) what type of temporary table
will be better:
1) create ... temporary table or ...
2) create type test is table of
The first option has more i/o and go throw the buffer cache , but doesn't
consume a lot of memory
the second option doesn't has I/O but consume more memory for the PGA.
Any ideas ?
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