Check Database - 2

select value
from v$parameter
where name = 'background_dump_dest';

http://abakalidis.blogspot.com/2007/11/where-is-oracle-database-alert-log.html

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SAPDBA: Error - opening alert log P:\oracle\QAS\saptrace\background\QASalrt.log

However Oracle Log is actually at the place Q:\oracle\QAS\817\RDBMS\trace\qasALRT.LOG