SQL>
SQL> set serverout on
SQL> exec dbms_output.put_line( dbms_random.value );
.02384074069949541946799357018112732833
PL/SQL procedure successfully completed.
SQL>
SQL> set serverout on
SQL> exec dbms_output.put_line( dbms_random.value );
.9204517146492220886865737108916710535
PL/SQL procedure successfully completed.
SQL> --