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DataPump Import (IMPDP) Returns Error ORA-31684 Object Type INDEX Already Exists for Primary Key Constraints (Doc ID 1433123.1)

Last updated on JULY 02, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.3 [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

You started a DataPump import (IMPDP) and received errors like:

...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "TEST"."A_TAB":"P001" 0 KB 0 rows
. . imported "TEST"."A_TAB":"P002" 0 KB 0 rows
Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
ORA-31684: Object type INDEX:"TEST"."A_TAB_PK" already exists
...


You checked the DDL statements in SQLFILE extracted from dump file and observed, the primary key constraint is already present inline in column list (what implicitly creates the unique index with same name). Additionally a unique index is created:


During the execution (import), the additional CREATE UNIQUE INDEX statement generates the error ORA-31684.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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