Mapping database file class to operating system file class in a computer schema

Described herein is a schema extension of the Common Information Model (CIM), designed to model manageable aspects of a database server such as a Structure Query Language (SQL) server. The database schema contains a data file class that represents files associated with databases. The operating system also has a data file class, representing files that are managed by the operating system. An association is defined between the two data file classes, allowing queries to navigate between the database schema and the operating system schema.