Show Recommended textbook solutions Numerical Analysis9th EditionJ. Douglas Faires, Richard L. Burden 873 solutions Elementary Number Theory7th EditionDavid Burton 776 solutions Complex Analysis: A First Course with Applications3rd EditionDennis G. Zill, Patrick D. Shanahan 1,433 solutions
Advanced Engineering Mathematics10th EditionErwin Kreyszig 4,134 solutions When an entity has a relationship connecting it to itself it is called an?It is possible for an entity to have a relationship with itself; for example, an entity Staff could have a relationship with itself, as one member of staff could supervise other staff. This is known as a recursive or involute relationship, and would be represented in an entity-relationship diagram as shown below.
Which of the following is the term for the number of entities involved in a relationship?Cardinality: The number of times an entity of an entity set participates in a relationship set is known as cardinality.
What relationship exists when three entities are associated?A ternary relationship exists when three entities are associated.
What is meant by the degree of a relationship quizlet?The entity instance is described by the values of the attributes of the entity. An entity class, then, is a collection containing many entity instances. What is meant by the degree of a relationship? In the E-R model, the degree of a relationship indicates how many entity classes are participating in the relationship.
|
When an entity class has a relationship with itself, it is called a(n) ________ relationship.
zusammenhängende Posts
Urheberrechte © © 2024 WIKIFI Inc.
