ORA-01400: CANNOT INSERT NULL OCCURS WITH MERGE STATEMENT AND ENABLE_PARALLEL_DML HINT (Doc ID 2780617.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 19.11.0.0.0 and later
Information in this document applies to any platform.

MERGE statement fails with:

ORA-12801: error signaled in parallel query server P007,ORA-01400: cannot insert NULL

Issue started after upgrading from 12.1.0.2 to 19.8.
Issue seen ONLY when parallel DDL is enabled and value coming from sequence

A PDML merge statement that accesses sequences in its insert or update portions and those sequences are returning NULL instead of sequence values.

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In this Document

Symptoms

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