DataPump Worker (DW) Processes Do Not Work Concurrently To Import Data Into Pre-Created Tables
(Doc ID 2317768.1)
Last updated on MAY 18, 2021
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
When trying to load data in parallel mode using DataPump import (impdp):
In 10g multiple worker processes can concurrently work at the same time.
In 126.96.36.199, we can see multiple work processes can concurrently work to load data if tables have NOT been pre-created, but a different behavior is seen when the tables are pre-created before the import.
Trying to load data with higher parallel mode.
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