how to start mrp process in standby database 19c

Daniel Parker

2 min read

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07-02-2025

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Starting the Material Requirements Planning (MRP) process within a 19c standby database requires a nuanced approach, differing significantly from initiating it in a primary database. This article details the procedure, highlighting crucial considerations and potential pitfalls. Remember, directly manipulating a standby database can lead to inconsistencies and data corruption if not handled correctly.

Understanding the 19c Standby Database Role

Before diving into the MRP process, it's crucial to grasp the standby database's role. It's a passive copy of the primary database, primarily used for disaster recovery and high availability. While it reflects the primary's data, it's not designed for active transactional processing, including initiating MRP calculations. Directly running MRP on a standby database can lead to data inconsistencies and synchronization issues with the primary.

The Correct Approach: Primary Database Focus

The most reliable and recommended method is to run the MRP process on the primary database. The standby database will automatically receive the updated data once the process completes on the primary. This maintains data integrity and avoids potential complications.

Steps for Running MRP on the Primary Database:

1. Ensure Database Availability: Verify the primary database is operational and accessible.
2. Access the MRP System: Log in to the application or system responsible for managing your MRP process. This could be an ERP system like SAP, Oracle Applications, or a custom-built solution.
3. Initiate MRP Run: Use the standard procedures within your MRP system to initiate a new planning run. The specific steps will depend on your software and configuration.
4. Monitor Progress: Track the progress of the MRP calculation. Most systems provide monitoring tools to view the status and identify any errors.
5. Review Results: Once the process completes, review the generated plans and reports.

Potential Scenarios and Alternatives (Advanced)

In rare cases, you might need to perform some tasks related to MRP data on the standby database. However, this should only be done with extreme caution and expert knowledge. Examples include:

• Data Analysis and Reporting: You could query the MRP-related tables in the standby database for analysis or reporting purposes. However, remember that this data might be slightly behind the primary.
• Testing and Development: If you have a separate standby database dedicated to testing and development, you can run the MRP process there using a test dataset. This should never be done on a standby database mirroring a production environment.

Important Considerations:

• Data Synchronization: Remember that the standby database is constantly being updated from the primary. Any changes made on the standby will be overwritten.
• Recovery: Improper manipulation of the standby database can jeopardize your recovery strategy.
• Best Practices: Always prioritize running MRP on the primary database to maintain data consistency and avoid potential issues.

Conclusion

Successfully initiating the MRP process in an Oracle 19c environment depends on understanding the standby database's limitations. The best practice is to perform MRP calculations on the primary database, ensuring data integrity and synchronization. Directly interacting with the standby for MRP purposes is strongly discouraged unless you are a database expert working with a dedicated testing environment. Always prioritize data consistency and refer to your MRP system's documentation for specific instructions.