1. A system comprising: a computing device; operating system logic configured to execute computer programs on the computing device; a database stored on a non-transitory computer readable medium and including a first data record, a second data record, and a third data record; code management logic configured to store a first source code in the first data record, to store a second source code in the second data record, and to store a third source code in the third data record, the first source code comprising a first part of a computer program and the second source code comprising a second part of the computer program different from the first part, the second source code and the third source code comprising different instances of the second part of the computer program; database management logic configured to access the database; and code compilation logic configured to select one of the second or third source codes, retrieve the selected source code from the data records by executing one or more queries on the database using the database management logic, and to compile the selected source code for execution on the operating system logic.