Define single valued and multivalued attributes, Database Management System

Define single valued and multivalued attributes. 

Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. 

 Multivalued attributes: Attributes with a set of value for a particular entity are known as multivalued attributes. 

 

Posted Date: 7/27/2013 6:43:27 AM | Location : United States







Related Discussions:- Define single valued and multivalued attributes, Assignment Help, Ask Question on Define single valued and multivalued attributes, Get Answer, Expert's Help, Define single valued and multivalued attributes Discussions

Write discussion on Define single valued and multivalued attributes
Your posts are moderated
Related Questions
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i

Vertical Fragmentation- Vertical fragmentation groups together only those attributes in a relation that are used jointly by various important transactions. A vertical fragment is d

Making Common Behaviour Abstract Let us define abstraction "Abstraction means to focus on the necessary, inherent aspects of an entity and ignoring its accidental features". O


What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.

Which element in the database can modified by changing the data dictionary? Data elements in the database can be changed or modified through changing the data dictionary.

What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.

explain normalization,and give the examples 1NF,2NF,3NF,BCNF.AND FUNCTIONAL DEPANDENACY AND DECOMPOSITION TECHNIQUES.

This assignment is worth 45% of your final grade for this module.  Marks will be awarded as follows: Prototypes (wireframe and web based prototype) You are expected

What are the two types of errors? The two types of errors are: a) Logical error b) System error