Creation of generic hierarchies

A method and system are disclosed for modeling a relational database. The method comprises the steps of defining a set of data tables to accommodate any number of levels of a business hierarchy and using these tables as a generic data model to handle various levels of requirements of the business hierarchy. This set of tables include a first control table, a second table containing hierarchy nodes in a flattened format, a third table storing unique hierarchy node names, and a fourth table describing the hierarchy nodes in one or more languages. For example, this business hierarchy may be a commodity hierarchy, a geography hierarchy and a client organization hierarchy. Also, in the preferred embodiment, no new tables are needed when a new hierarchy is introduced, and the generic data model supports different numbers of reporting levels from one hierarchy to the next hierarchy.