Below are the partitioning enhancements that has been introduced in Oracle 12c version. 1. Online partition move: From oracle 12c, we can move partitions online without blocking the DML statements during that time. — To maintain global indexes

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ALTER TABLE DBACLASS MOVE PARTITION DBA_JAN2014 ONLINE;

— Moving to another tablespace: 2. Adding multiple partitions with One command:

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ALTER TABLE DBACLASS MOVE PARTITION DBA_JAN2014 ONLINE UPDATE GLOBAL INDEXES;

ALTER TABLE DBACLASS MOVE PARTITION DBACLASS_JAN2014 ONLINE TABLESPACE TESTTS UPDATE INDEXES;

ALTER TABLE CMADMIN.DBACLASS ADD
PARTITION DBACLASS_JAN VALUES LESS THAN (TO_DATE('01-FEB-2016','DD-MON-YYYY')) TABLESPACE USERS,
PARTITION DBACLASS_FEB VALUES LESS THAN (TO_DATE('01-MAR-2016','DD-MON-YYYY')) TABLESPACE USERS,
PARTITION DBACLASS_MAR VALUES LESS THAN (TO_DATE('01-APR-2016','DD-MON-YYYY')) TABLESPACE USERS,
UPDATE GLOBAL INDEXES;

3. Drop/Truncate multiple partitions with one command: —For Drop — For truncate

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ALTER TABLE CMADMIN.DBACLASS DROP PARTITIONS DBACLASS_JAN, DBACLASS_FEB, DBACLASS_MAR UPDATE GLOBAL INDEXES;

ALTER TABLE CMADMIN.DBACLASS DROP PARTITIONS DBACLASS_JAN, DBACLASS_FEB, DBACLASS_MAR UPDATE GLOBAL INDEXES;

4. Merging multiple partitions to single partition — NOTE: UPDATE GLOBAL INDEXES is required if GLOBAL INDEX is present 5. Splitting single partition to multiple partitions:

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ALTER TABLE CMADMIN.DBACLASS MERGE PARTITIONS 
DBACLASS_JAN, DBACLASS_FEB, DBACLASS_MAR 
INTO partition DBACLASS_Q1;

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ALTER TABLE CMADMIN.DBACLASS SPlIT PARTITIONS DBACLASS_Q1 INTO
(PARTITION DBACLASS_JAN values less than (TO_DATE('01-FEB-2016','dd-MON-yyyy')),
PARTITION DBACLASS_FEB values less than (TO_DATE('01-MAR-2016','dd-MON-yyyy')),
PARTITION DBACLASS_MAR);