Hello,
I am trying to play on a test machine with the Parallel Query Option. I
cannot seem to get a query to perform a parallel full table scan.
I have searched on metalink and I believe I have all the proper init.ora
parameters set:
NT 4.0, Oracle 8.1.7 Enterprise Edition.
parallel_threads_per_cpu = 2
parallel_min_servers = 0
parallel_max_servers = 5
The test machine only has 1 CPU, does the parallel query even work if the
machine only has 1 CPU? I realize you need more than 1 cpu for it to be
very beneficial, however, I am not really concerned with the performance,
but I would just like to see a query use the parallel option.
To Test:
I built a 1,000,000 row table and I am using the following query:
SELECT /*+ FULL(TEST) PARALLEL */ COUNT(*)
FROM TEST
When I do an explain plan, I cannot seem to get any parallel execution.
Is there something I am missing or must you have > 1 CPU? Is 1,000,000 rows
too small?
Thanks, Jim
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Author: Jim Walski
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