dbExpress is a database-independent layer that defines common interface for fast access to Oracle database server from Delphi on Windows and Mac OS X for both 32-bit and 64-bit platforms. For each supported server dbExpress provides a driver as an independent library that implements the common dbExpress interfaces for processing queries and stored procedures. dbExpress provides high performance database connectivity and is easy to deploy. dbExpress driver for Oracle provides direct high performance access to Oracle database server. It can work using Oracle Call Interface (OCI) or SQL*Net directly. dbExpress driver for Oracle supports Oracle servers 12c,11g, 10g, 9i, 8i, 8.0, and 7.3, including Oracle Express Edition 11g and 10g.

Key features of dbExpress drivers:
* RAD Studio 10.2 Tokyo is supported
* RAD Studio 10.1 Berlin support
* RAD Studio 10 Seattle support
* Direct Mode is distributed as source code
* Oracle 12c authentication in the Direct mode
* Oracle Cloud (DBaaS) in the Direct mode
* Oracle Encryption in the Direct mode
* Oracle Data Integrity in the Direct mode
* Win64 development support
* Mac OS X development support
* Direct access to data
* Direct SQL
* Net protocol support. This feature allows driver to work in Direct mode without Oracle client software
* High performance
* Ability of monitoring query execution with dbMonitor
* Extended options for advanced behaviour
* Complete support for dbExpress version 4
* Source code available
* IPv6 protocol support is added
* Includes annual Subscription with Priority Support
* Support for Oracle Cloud in the Direct Mode

Licensed royalty-free per developer IDE Compatibility:
* Embarcadero RAD Studio 10 Seattle
* Embarcadero RAD Studio XE8/XE7/XE6/XE5/XE4/XE3/XE2/XE
* Embarcadero RAD Studio 2010/2009/2007
* Borland Developer Studio 2006
* Borland Delphi 7/6
* Borland C++Builder 6