Try to drop the last interval partition and get error “ORA-14758: Last partition in the range section cannot be dropped”.
SQL>alter table PART_TAB drop partition SYS_P3726162 update indexes; alter table PART_TAB drop partition SYS_P3726162 update indexes * ERROR at line 1: ORA-14758: Last partition in the range section cannot be dropped
WORKAROUND
Disable interval partition definition, then drop the last partition and re-enable the interval partition again.
SQL> alter table PART_TAB set interval(); Table altered. SQL> alter table PART_TAB drop partition SYS_P3726162 update indexes; Table altered. SQL>alter table PART_TAB set INTERVAL (NUMTODSINTERVAL(1,'DAY')); Table altered.