Oracle DB to PostgreSQL Migration Challenges

Here we have focused on two main categories of challenges that may affect your decision to migrate your database from Oracle to an open-source database like PostgreSQL; Database features and PL/SQL code.

Oracle Database Features

Oracle Data Guard: This feature allows for real-time data protection, replication, and failover to ensure the high availability of data in case of disasters or system failures. It is not available in PostgreSQL, and migrating data from Oracle with this feature may require manual data protection and replication processes.

Oracle Real Application Clusters (RAC): This feature allows multiple servers to work together as a single system, providing high availability, scalability, and performance for database applications. It is not available in PostgreSQL, and migrating data from Oracle with this feature may require manual configuration of multiple servers and load balancing.

Oracle Advanced Security: This feature provides advanced security features such as transparent data encryption, network encryption, and network firewalls to protect data from unauthorized access and data breaches. It is not available in PostgreSQL, and migrating data fr
om Oracle with this feature
may require manual configuration of security measures.

PL/SQL Code

Oracle Package: This feature allows for creating a package, a group of related procedures and functions that can be used in multiple applications. It is not available in PostgreSQL, and migrating data from Oracle with this feature may require the manual creation of procedures and functions in individual applications.

Oracle Trigger: This feature allows for the creation of a trigger, which is a procedure that is automatically executed in response to a specific event, such as the insertion, deletion, or update of data in a table. It is not available in PostgreSQL, and migrating data from Oracle with this feature may require the manual creation of triggers in individual applications.

Oracle Sequence: This feature allows for creating a sequence, a series of sequential numbers that can be used as a primary key in a table. It is not available in PostgreSQL, and migrating data from Oracle with this feature may require the manual creation of sequences in individual applications.

Conclusion

Migrating from Oracle to PostgreSQL can be challenging due to the differences in features and code between the two databases. Therefore, it is crucial to consider the impact of these differences on your migration efforts and to consult with expert consultants to advise on the best approach for your specific needs. These experts can help you navigate the complexities of migrating across databases in different platforms and ensure a smooth and successful migration process.

We can help

Moving from Oracle to another Open-source database is a reoccurring topic we have addressed many times over the years with the clients. The executives are under constant pressure to find ways of cutting costs, and let’s face it, Oracle licensing cost is an attractive, low-hanging fruit.

We help clients understand, evaluate and navigate similar strategic decisions, and help them plan and execute a successful migration out of Oracle when this is the right decision for them.