Relationship of relationships and other inter-relationship links in E-R model
The concept of relationship has hitherto been defined as an association between entities. This definition is too restrictive and...
GRAQULA: A graphical query language for entity-relationship or relational databases
GRAQULA is a graphical language for querying and updating a database. One version of GRAQULA provides a user interface...
An entity-based approach to query processing in relational databases
An entity-based query interface to relational databases is developed. The interface combines some objectoriented features with the strengths of...
The representation of rules in the ER model
Production rules are the most commercially popular and successful structure for representing knowledge. The purpose of this paper is...
Analysis of binary/ternary cardinality combinations in entityrelationship modeling
In this paper, we discuss the simultaneous existence, and relationships, between binary and ternary relationships in entity-relationship (ER) modeling....
Hyper-semantic data modeling
This paper describes a new area of data modeling, a model in this new area, and the schema specification...
The category concept: An extension to’the entity-relationship model
An enhanced version of the Entity-Relationship (ER) data model called the Entity-CategoryRelationship (ECR) data model is presented. The principal...
A persistent complex object database language
To support a number of emerging applications we propose a persistent complex object database language which is "'value" based....
Component development and construction for database design
Principles for database modeling were developed and intensively investigated in the late 1970s and early 1980s. They are based...
A formal approach databases
Object-oriented database systems are the focus of current research and development efforts. Yet, there is no commonly accepted object...
