v$sqlarea question.

From: Diego Cutrone <dcutrone_at_afip.gov.ar>
Date: Thu, 29 Aug 2002 13:37:12 -0800
Message-ID: <F001.004C3399.20020829133712@fatcity.com>

Hi List.

    does anybody know what the OPTIMIZER_MODE = NONE mean in v$sqlarea view ?     

    I've found this document Doc ID: 48131.996 in metalink, but it seems that I don't have access to it.

The problem I'm facing here is that I am getting this information when analyzing v$sqlarea. What I'm trying to find out is why suddenly at sequence 5 disk_reads=0 and buffer_gets=0.

SEQ Address hash_value OPT_MOD FIRST_LOAD_TIME Disk_reads Buff_gets Invalidations loads

---

1    C
рш 1069627 NONE      2002-08-28/14:23:58 0            0    0        1
2    C
рш 1069627 CHOOSE    2002-08-28/14:23:58 10         166    0        2
3    C
рш 1069627 CHOOSE    2002-08-28/14:23:58 14         177    0        2
4    C
рш 1069627 CHOOSE    2002-08-28/14:23:58 14         177    0        2
5    C
рш 1069627 NONE      2002-08-28/14:23:58 0            0    0        2
6    C
рш 1069627 CHOOSE    2002-08-28/16:16:13 10         246    0        2

The Seq value represents occurrences taken at different moments along a day. Seq 1 was taken at 9 am in the morning, seq 2 at 9:30 , and so on...

TIA
Greeting
Diego Cutrone

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Author: Diego Cutrone
  INET: dcutrone_at_afip.gov.ar

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