Providers Host Configuration kind (brand) of DBMS used. will be a controlled vocabulary. Limits the maximum of records returned for a query. A list of aliases for tables and their keys representing the DB structure. All aliases have to be unique and no circular relation is allowed. holds the filepath to one DBmapping file. The primary key(s) of the table. for every foreign key in the table, the targeted alias of a table is given as a attribute. Attribute(s) that are the foreign keys. Have to be in the same order as the primary keys of the table they are pointing to.