An introduction to data structures with applications (2nd ed.)
An introduction to data structures with applications (2nd ed.)
Logic, algebra and databases
Database machines and database management
Database machines and database management
Relational database: selected writings
Relational database: selected writings
Relational database design with microcomputer applications
Relational database design with microcomputer applications
Database management and design
Database management and design
Simple conditions for guaranteeing higher normal forms in relational databases
ACM Transactions on Database Systems (TODS)
A first course in database systems
A first course in database systems
An introduction to database systems (7th ed.)
An introduction to database systems (7th ed.)
Multivalued dependencies and a new normal form for relational databases
ACM Transactions on Database Systems (TODS)
Principles of Database Systems
Principles of Database Systems
Computer-Assisted Data Base Design
Computer-Assisted Data Base Design
Design of Database Structures
Data Models
Normal forms and relational database operators
SIGMOD '79 Proceedings of the 1979 ACM SIGMOD international conference on Management of data
Theory of Relational Databases
Theory of Relational Databases
ER '09 Proceedings of the 28th International Conference on Conceptual Modeling
Normalization rules of the object-oriented data model
Proceedings of the International Workshop on Enterprises & Organizational Modeling and Simulation
Towards the conceptual normalisation
Proceedings of the 6th International Workshop on Enterprise & Organizational Modeling and Simulation
Editorial: Anchor modeling - Agile information modeling in evolving data environments
Data & Knowledge Engineering
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A new normal form, namely, object-normal form (ONF), is introduced. It is shown that the existing definitions of the fifth normal form (5NF) are unsatisfactory. The correct definition is given for the first time. The importance of the 5NF is demonstrated. For improving data representation in a database with a 5NF schema, the notion of negating relation is introduced. It serves as a basis for the new normal form, namely, the sixth normal form. Combining requirements of the ONF and other normal forms, new normal forms are defined: the fourth object-normal form, the fifth object-normal form, and the sixth object-normal form. It is shown that the standard order of steps of the normalization procedure should be changed: first, the specific requirements of the fourth normal form should be satisfied, and only then the requirements of the second normal form, and so forth.