Question: How do I check the Oracle version from the command prompt?
Answer: Version information is stored in a table called v$version. In this table you can find version information on Oracle, PL/SQL, etc.
To retrieve the version information for Oracle, you execute the following SQL statement:
select * from v$version
where banner like ‘Oracle%’;
It should return something like this:
Oracle9i Enterprise Edition Release 220.127.116.11.0 – 64bit Production