ClsKeyDef Table
The Data Warehouse uses the OLE DB provider for Commerce Server Core Systems to map logical entities to physical tables in the database. The ClsKeyDef table in the profiles database contains metadata about mapping table definitions. Data is updated in this table when you change a profile definition by using the Commerce Server Manager or when you change a Data Warehouse schema. The ClsKeyDef table might not be present in your installation of Commerce Server Core Systems.
You should not modify the ClsKeyDef table.