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Oracle Parallel Processing

edited Feb 2, 2011 5:51AM in Database Administration (MOSC) 5 commentsAnswered
Hi,  I am using Oracle Spatial 11gR2  to find locations near each other for a large number of points. The table of points is 1.8 Million rows.  I am using mdsys.sdo_within_distance to find the points near by.  This is performed in a stored procedure using cursors. I have a 24 Processor 72GB memory server and fast drives .. I need to speed this up a bit.  I tried setting the tables to parallel and the all the processors get hammered when I do .. but the performance comes to a crawl when I turn parallel on ?  Why is this ..

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