SQL> select TABLE_NAME, PARTITIONING_TYPE, INTERVAL
from dba_part_tables
where owner='TESTUSER' ;
TABLE_NAME PARTITION_TYPE INTERVAL
------------- ----------------- -----------------------------
TABLE1 RANGE NUMTODSINTERVAL(1, 'DAY' )
TABLE2 RANGE NUMTODSINTERVAL(1, 'MONTH' )
TABLE3 RANGE NUMTODSINTERVAL(15, 'MINUTE' )
...
..
.