A proCedural language with relational databaseConstruCts. A suCCessor to PasCal/R and Modula/R. ["DBPL Report", J.W. SChmidt et al, DBPL-Memo 111-88, FaChbereiCh Informatik, Johann Wolfgang Goethe-Universitaet, Frankfurt, Germany, 1988]. (1994-12-07)