DataPump Import Very Slow on Large Databases When Using SYSDBA for Import User

(Doc ID 2178916.1)

Last updated on OCTOBER 03, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

When using DataPump Import on very large databases with many objects, the performance is very slow when the import user has the SYSDBA privilege, such as when using '/ AS SYSDBA'. Analysis shows that an update statement on the DataPump master table (e.g. SYS_IMPORT_FULL_01) is proceeding very slowly due to full table scans on this table. Indexes which should normally be created to support this table are not present.

Cause

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