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Request for Guidance – Oracle to PostgreSQL Migration and Archival Plan

VIGNESH_DOct 8 2025

Hi Team,

We are planning to perform a data migration from Oracle to PostgreSQL using Ora2Pg.

The main goal is to retain the latest 3 months of active data in Oracle and migrate all older data to PostgreSQL for backup and archival purposes.

I’m looking for a detailed reference or document that covers the following:

  • Step-by-step migration and archival process from Oracle to PostgreSQL
  • Ora2Pg configuration for selective data export (older than 3 months)
  • Validation and verification approach post-migration
  • PostgreSQL server sizing and configuration guidelines for archived data
  • Any best practices, tuning parameters, or automation methods (shell/cron/Ansible) for ongoing archival

If anyone has performed a similar migration or can share documentation, templates, or suggestions, it would be greatly appreciated.

Thanks & Regards,
Vignesh D

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Added on Oct 8 2025
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