ER notation

Description

1 Database Flashcards on ER notation, created by linneamd on 14/03/2016.
linneamd
Flashcards by linneamd, updated more than 1 year ago
linneamd
Created by linneamd over 8 years ago
19
1

Resource summary

Question Answer
Cardinality ratio: 1:N for E1:E2 in R
Total participation of E2 in R
Derived Attribute
Composite Attribute
Multivalued Attribute
Key attribute
Attribute
Identifying relationship
Relationship
Weak entity
Entity
What is the meaning of total participation? Every entity in the set is involved in some association (or tuple) of the relationship.
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