Ora2pg

Introduction:

The migration of Oracle databases to PostgreSQL can be a complex process, but Ora2Pg makes it easier. This command-line tool automates the migration by extracting the schema, data, and PL/SQL code from an Oracle database. It then converts the extracted information to PostgreSQL syntax and loads it into a PostgreSQL database.

Ora2Pg supports various versions of Oracle databases and is highly configurable to suit different migration requirements. It can handle complex database objects like triggers, views, and stored procedures, and has support for advanced features like partitioning and materialized views. It provides detailed migration reports for analysis and supports incremental migration, allowing you to migrate only specific changes made to an Oracle database since the last migration.

Pros

Ora2Pg is easy to use and can be run in batch mode or interactively. It provides a comprehensive command-line interface that allows you to control various aspects of the migration process. Additionally, Ora2Pg has a detailed documentation, including examples and use cases, which makes it easy for users to get started with the tool.

Ora2Pg is highly customizable, allowing users to configure various migration settings based on their specific needs. For instance, users can specify the target PostgreSQL version, configure data type mapping, define migration rules, and specify the schema to migrate.

Cons

it does not support migration of all Oracle features, such as user-defined types, object types, and some PL/SQL functions. Additionally, while Ora2Pg can handle large volumes of data, it may not be the best option for real-time migration of very large databases.