ODBCDAO

ODBCDAO is a software library that implements the Data Access Object (DAO) pattern on top of the Open Database Connectivity (ODBC) API. It provides a language-agnostic layer for accessing relational databases through ODBC drivers, enabling applications to perform common data operations without writing database-specific SQL code. By sitting between the application and the ODBC layer, ODBCDAO aims to simplify data access while preserving the ability to work with multiple database systems through a single interface.

The library abstracts core data-access concerns such as connection management, prepared statements, parameter binding, result set iteration, and transaction handling. Its architecture typically includes DAO interfaces for domain entities, a query builder or criteria API, and a mapping layer that converts database rows into domain objects. ODBCDAO relies on the ODBC driver manager to load appropriate database drivers at runtime, which allows the same application to connect to different database systems with minimal code changes.

ODBCDAO ships with bindings for several programming languages and can be extended through adapters to support additional environments. It supports common CRUD operations, batch updates, and basic transaction management, and may include features such as a lightweight result mapper and optional caching in some implementations. The design emphasizes portability, database-agnostic development, and a thin abstraction over the underlying ODBC calls.

Development and licensing of ODBCDAO are community-driven, with releases published on code-hosting platforms. The project typically operates under an open-source license, with terms varying by release. Usage tends to be favored in environments with existing ODBC infrastructures or where vendor-neutral data access is desired, providing a structured DAO layer on top of traditional SQL execution.