ALTER TABLE sales SPLIT PARTITION sales_1_2_2002 
  AT (TO_DATE('01-FEB-2002','DD-MON-YYYY'))
  INTO 
   (PARTITION sales_JAN_2002 TABLESPACE sysaux COMPRESS,
    PARTITION sales_FEB_2002 TABLESPACE example NOCOMPRESS)
  UPDATE INDEXES (sales_time_bix 
   (PARTITION jan_02 TABLESPACE example,
    PARTITION feb_02 TABLESPACE system));
