SQL has PARALLEL DML Clause but doesn't do DML in Parallel with a "DML disabled because object is not decorated with parallel clause" Message
(Doc ID 3068097.1)
Last updated on JANUARY 21, 2025
Applies to:
Oracle Database - Enterprise Edition - Version 19.20.0.0.0 and laterGen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A to N/A
Gen 2 Exadata Cloud at Customer - Version N/A to N/A [Release All Releases]
Information in this document applies to any platform.
Symptoms
You have enabled parallel_dml at session level or using statement hint enable_parallel_dml (example: /*+ enable_parallel_dml parallel(x) */)
But the DML runs in serial.
The execution plan has:
Note
-----
- Degree of Parallelism is 8 because of table property
- PDML disabled because object is not decorated with parallel clause
- Direct Load disabled because no append hint given and not executing in parallel
Changes
None
Cause
To view full details, sign in with your My Oracle Support account. |
|
Don't have a My Oracle Support account? Click to get started! |
In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |