IBM introduces DB2 Express-C, a version of DB2 Universal Database Express Edition (DB2 Express) for the community. DB2 Express-C is a no-charge data server for use in application development and deployment. Providing the same core data server features as DB2 Universal Database Express Edition, DB2 Express-C offers a solid base to build and deploy all applications including: C/C++, Java, .NET, PHP, and more.
Source: DB2 Universal Database Express Edition for Linux and Windows