Which two partitioned table maintenance operations support asynchronous Global Index
Maintenance in Oracle database 12c?
A.
ALTER TABLE SPLIT PARTITION
B.
ALTER TABLE MERGE PARTITION
C.
ALTER TABLE TRUNCATE PARTITION
D.
ALTER TABLE ADD PARTITION
E.
ALTER TABLE DROP PARTITION
F.
ALTER TABLE MOVE PARTITION
Explanation:
Asynchronous Global Index Maintenance for DROP and TRUNCATE PARTITION
This feature enables global index maintenance to be delayed and decoupled from a DROP and
TRUNCATE partition without making a global index unusable. Enhancements include faster
DROP and TRUNCATE partition operations and the ability to delay index maintenance to off-peak
time.Oracle Database VLDB and Partitioning Guide 12c
CE
C E
C & E
reference
https://docs.oracle.com/database/121/VLDBG/GUID-087B87A6-959A-40C6-82AF-36E401FD089B.htm#VLDBG14107
C E
https://docs.oracle.com/database/121/VLDBG/GUID-087B87A6-959A-40C6-82AF-36E401FD089B.htm#VLDBG14107
Asynchronous Global Index Maintenance for Dropping and Truncating Partitions
The partition maintenance operations DROP PARTITION and TRUNCATE PARTITION are optimized by making the index maintenance for metadata only.
Asynchronous global index maintenance for DROP and TRUNCATE is performed by default; however, the UPDATE INDEXES clause is still required for backward compatibility.