Monitoring Integrity Constraints In A Codasyl-Like DBMS

This paper proposes that a DBMS of the kind typically used in a COBOL application environment should have facilities to implement automatically the monitoring of the integrity constraints specified at the conceptual level. In particular it is suggested that within certain limitations a preprocessor can cheaply implement such monitoring. Such facilities which are being implemented in a CODASYL-like DBMS are shown and the implementation techniques are outlined.