SQL>
SQL> SELECT username, initial_rsrc_consumer_group
2 FROM dba_users;
USERNAME INITIAL_RSRC_CONSUMER_GROUP
------------------------------ ------------------------------
RNTSOFT DEFAULT_CONSUMER_GROUP
SYS SYS_GROUP
SYSTEM SYS_GROUP
ANONYMOUS DEFAULT_CONSUMER_GROUP
MDSYS DEFAULT_CONSUMER_GROUP
OUTLN DEFAULT_CONSUMER_GROUP
DIP DEFAULT_CONSUMER_GROUP
TSMSYS DEFAULT_CONSUMER_GROUP
FLOWS_FILES DEFAULT_CONSUMER_GROUP
CTXSYS DEFAULT_CONSUMER_GROUP
DBSNMP DEFAULT_CONSUMER_GROUP
USERNAME INITIAL_RSRC_CONSUMER_GROUP
------------------------------ ------------------------------
FLOWS_020100 DEFAULT_CONSUMER_GROUP
XDB DEFAULT_CONSUMER_GROUP
HR DEFAULT_CONSUMER_GROUP
14 rows selected.
SQL>