Database Compatibility for Oracle Developers v14

Database compatibility for Oracle means that an application runs in an Oracle environment as well as in the EDB Postgres Advanced Server environment with minimal or no changes to the application code. Developing an application that's compatible with Oracle databases in the EDB Postgres Advanced Server requires special attention to the features used when constructing the application. For example, developing a compatible application means choosing compatible:

• System and built-in functions for use in SQL statements and procedural logic
• Stored procedure language (SPL) when creating database server-side application logic for stored procedures, functions, triggers, and packages
• Data types that are compatible with Oracle databases
• SQL statements that are compatible with Oracle SQL
• System catalog views that are compatible with Oracle’s data dictionary

For detailed information about the compatible SQL syntax, data types, and views, see SQL reference.

For the compatibility offered by the procedures and functions that are part of the built-in packages, see Built-in packages.

For information about using the compatible tools and utilities (EDB*Plus, EDB*Loader, DRITA, and EDB*Wrap) that are included with an EDB Postgres Advanced Server installation, see Tools and utilities.

For applications written using the Oracle Call Interface (OCI), EDB’s Open Client Library (OCL) provides interoperability with these applications. For detailed information about using the Open Client Library, see EDB OCL Connector.