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Datapump Import (IMPDP) With TABLE_EXISTS_ACTION=TRUNCATE Is Slower When Table Exists (Doc ID 780784.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Information in this document applies to any platform.
***Checked for relevance on 14-Apr-2015***

Symptoms

DataPump import (IMPDP) on 10gR2 takes more time when an Index Organized table exists and if you specify TABLE_EXISTS_ACTION=TRUNCATE.

The slower performance is not seen when you drop the table and import it. Example:

Measure the time (performance) and you will see this time Import (DataPump Import) is faster.

Cause

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