Database Tuning (MOSC)

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Problem with cursor in store procedure !

edited Oct 4, 2012 7:29PM in Database Tuning (MOSC) 20 commentsAnswered
Hi all,

   Our developer wrotten store procedure. This store use cursor to retrieve multiple rows (about 370.000 records). It take about 12 hours to complete.

   I have been reviewing and trying tune to improve perfomance with some tasks:

     - Use BULK COLLECT and LIMIT 

      - Use dynamic SQL + bind variable inside cursor.

      - Reduce operations not needed inside cursor.

   But it take about 11 hours to complete. I think that cause from cursor contained multiple records and it consume alot of resources ! I have been thinking about VARARRAY to replace cursor but with about 370.000 records, is it good solution ?

   Can anyone give me some advise for my problem ? My db is 9.2.0.4 64 bit on AIX 5.3.

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