This is what my result show on the production.
SQL> select * from v$version;

BANNER
--------------------
Oracle8i Release 8.1.7.4.1 - Production
PL/SQL Release 8.1.7.4.0 - Production
CORE 8.1.7.2.1 Production
TNS for 32-bit Windows: Version 8.1.7.4.0 - Production
NLSRTL Version 3.4.1.0.0 - Production

No mention of Enterprise or Standard.