appsdba11i
sriwiduhow to Find Database is 32 bit or 64 Bit
Posted by appsdba11i on May 4, 2011
1)login as oracle user in Linux Box And go to $ORACLE_HOME/bin
2) give the following command ” file rman ”
example : file Any executable (like sqlplus,rman)
You can get header of that executable if you find 32 it/64 Number there
Then that is database Bit version
Example:
$ file $ORACLE_HOME/bin/sqlplus
you should see output like
/u01/db/bin/sqlplus: ELF 64-bit MSB executable
which means you are on 64 bit oracle
If your oracle is 32 bit you should see output like
oracle: ELF 32-bit MSB executable
Your Doorstep to the Temple of Oracle 
Mohammad said
Nice blog. Regarding the platform we can also use this query:
SQL> select platform_name from v$database;
PLATFORM_NAME
——————————————————————————–
Microsoft Windows IA (32-bit)