1. A method for assessing a database (DB) system comprising operating a computer system to perform steps of: receiving a template file that describes grammar and syntax for one or more DB statements of a DB language of the DB system; receiving a metadata file that contains metadata for a DB schema including metadata for one or more DB tables of the DB schema and metadata for data fields of the DB tables; generating DB statements according to the grammar and syntax specified in the template file, comprising first DB statements that create an instance of the DB schema and second DB statements that perform operations on the DB tables of the DB schema; instantiating the DB schema on the DB system by executing the first DB statements; executing the second DB statements to perform operations on the DB tables of the DB schema; and reporting on the DB system's performance of execution of the second DB statements.