Peterlee Relational Test Vehicle

The "Peterlee Relational Test Vehicle" (PRTV) was an experimental relational DBMS developed at the IBM UK Scientific Centre in Peterlee County Durham, England starting in 1970 and completing in 1978.

Data Model


Query Interface

Custom API

PRTV was designed to be a query oriented database subsystem. Since its development predates SQL, it used it's own language called Information System Base Language (ISBL).