RDBPROD: Consequences Of Using NOLOGGING On CREATE INDEX
(Doc ID 2679048.1)
Last updated on APRIL 14, 2022
Applies to:Oracle Rdb Server on OpenVMS - Version 22.214.171.124 and later
Information in this document applies to any platform.
Question 1: What are Oracle's recommendations for the use of the NOLOGGING clause on the CREATE INDEX? Does the NOLOGGING only indicate that minimal information is logged to the AIJ and RUJ file solely on the index creation?
Question 2: When I use the NOLOGGING on a CREATE INDEX, I get these warnings prompting me to do a full backup afterward to ensure recoverability.
%RDB-W-META_WARN, metadata successfully updated with the reported warning
-RDMS-W-DATACMIT, unjournaled changes made; database may not be recoverable
-RDMS-W-DOFULLBCK, full database backup should be done to ensure future recovery
So, it would appear that a ramification of using the NOLOGGING option is that it must be followed with a full database backup to avoid potential trouble down the road?
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