V$COMPATIBILITY

Columns
   ___________________________
 
   TYPE_ID
   RELEASE
   DESCRIPTION

Related:

V$ACTIVE_INSTANCES 
V$BGPROCESS 
V$BH 
V$COMPATSEG 
V$COPY_CORRUPTION 
V$DATABASE 
V$INSTANCE 
V$LICENSE 
V$OPTION 
V$TABLESPACE 
V$VERSION