PGA STUCK MY WORIKG PLZ HELP

Question

hey to all of you my PGA return this value when i issue this
select 1048576+a.value+b.value pga_size
from
v$parameter a,
v$parameter b
where
a.name = 'sort_area_size'
and
b.name = 'hash_area_size'
Output
1245184
this query i copied from a artical which show that every connected Oracle session will about 1.1857 megabytes of RAM memory for the Oracle PGA.
when i issue show paramenters area_size
NAME TYPE VALUE
bitmap_merge_area_size integer 1048576
create_bitmap_area_size integer 8388608
hash_area_size integer 131072
sort_area_size integer 65536
workarea_size_policy string MANUAL
but i read in article We reserve 2 meg for Windows over head but my PGA is smaller than 2 MB why plz tell me the reason why it is so small my computer have 2GB memory what you suggest plz

Answer 1

First of all I strongly suggest you adhere to basic Netiquette and stop typing subject lines in all CAPS.
It is by many, including me, considered shouting and yelling, and consequently termed as rude.
Secondly you really should start reading documentation.
The PGA does NOT consist of sort_area_size and hash_area_size, it is a separate global, non-session specific area, consequently your query is incorrect.
For the PGA to be used work_area_size_policy must be set to AUTO not to MANUAL.
You would need to read the article more carefully, and/or start reading docs.
So far all of your questions can be easily answered by reading the docs. If you don't want to read the docs, Oracle is not for you.
Please be prepared (especially if you continue yelling and shouting) you are going to be ignored, at least by me.
Sybrand Bakker
Senior Oracle DBA