- 10 Oct, 2025
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Oracle to PostgreSQL Migration Using Ora2Pg
Oracle to PostgreSQL Migration Using Ora2Pg — Step-by-Step Guide
Introduction
As organizations embrace open-source technologies, database migration has become a crucial part of modernization strategies.
At Learnomate Technologies Pvt Ltd , we’ve helped multiple enterprises migrate from Oracle to PostgreSQL, unlocking flexibility, scalability, and cost efficiency.
In this blog, we’ll walk you through a step-by-step Oracle to PostgreSQL migration process using Ora2Pg — one of the most trusted tools for database conversion.
Step 1:
Preparing for Migration
Install PostgreSQL on the target system.
Create a new PostgreSQL database for the migration.
Install the “ora2pg” tool, which is a popular tool used for migrating from Oracle to PostgreSQL.
Step 2:
Exporting Data from Oracle
Use the “exp” command in Oracle to export data from the Oracle database into a dump file.
For example:
exp <username>/<password>@<oracle_db> file=<export_file>.dmp
Step 3:
Converting Oracle Dump to PostgreSQL Format
Use the “ora2pg” tool to convert the Oracle dump file to a PostgreSQL-compatible format.
For example:
ora2pg -t SHOW -c <export_file>.dmp -o <output_file>.sql -d <pg_db> -u <pg_user> -p <pg_password>
Step 4:
Creating Tables and Importing Data in PostgreSQL
Execute the converted SQL file in PostgreSQL to create tables and import data.
For example:
psql -d <pg_db> -U <pg_user> -p <pg_port> -h <pg_host> -f <output_file>.sql
Step 5:
Migrating Stored Procedures, Triggers, and Views
Manually convert stored procedures, triggers, and views from Oracle PL/SQL to PostgreSQL PL/pgSQL syntax.
Create the converted objects in PostgreSQL using appropriate PostgreSQL syntax.
Step 6:
Testing and Verification
Perform thorough testing of the migrated data and functionality to ensure data integrity and application functionality.
Migrating from Oracle to PostgreSQL doesn’t have to be complex.
With Ora2Pg and expert guidance from Learnomate Technologies Pvt Ltd , you can achieve a smooth, secure, and efficient database transition.
At Learnomate, we specialize in PostgreSQL migration, optimization, and performance tuning — helping businesses unlock the power of open-source databases.
Ready to migrate from Oracle to PostgreSQL?
Let Learnomate Technologies Pvt Ltd guide you through a seamless transition.
Conclusion
At Learnomate Technologies, we’re here to support you every step of the way with top-notch training in PostgreSQL DBA and more.
For more detailed insights and tutorials, do check out our YouTube channel: www.youtube.com/@learnomate, where we regularly share practical tips and deep dives into essential database topics. And if you’re serious about mastering PostgreSQL DBA, head over to our website for our full training program: learnomate.org/training/postgresql-training/.
I’d love to connect with you, so don’t forget to follow my LinkedIn: https://www.linkedin.com/in/ankushthavali/. If you’re eager to read more about various technologies, explore our blog page here: https://learnomate.org/blogs/. Happy learning, and remember—tuning and training go hand-in-hand for database success!