The entity-relationship model—toward a unified view of data
ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA
Implementation of integrity constraints and views by query modification
SIGMOD '75 Proceedings of the 1975 ACM SIGMOD international conference on Management of data
The semantic data model: a modelling mechanism for data base applications
SIGMOD '78 Proceedings of the 1978 ACM SIGMOD international conference on management of data
Efficient monitoring of database assertions
SIGMOD '78 Proceedings of the 1978 ACM SIGMOD international conference on management of data
Database semantic integrity for a network data manager
AFIPS '80 Proceedings of the May 19-22, 1980, national computer conference
| Hi-index | 0.00 |
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.