U.S. PATENT NUMBER 5,652,882
Data processing system and method for detecting mandatory relations violation in a relational database
- Effective Filing Date: May 21, 1990
- Patent Issue Date: July 29, 1997
Mandatory relationship definition and enforcement, using an indicator to signify records in violation (i.e., the record status field).
The Prior Art required software developers to develop code to handle their application’s specific mandatory relations requirements. This locked their code to a specific data model design inside hand coded programs.
Many commercial systems use mandatory relationships in one form or another and prefer the data base management system to handle these requirements for them.