What is a Derived attribute?
Q: tween entities. One more thing is that is Hospital included as an entity or not? hospital has a…
A: Yes, the hospital is an entity. Physician, Patient, Hospital, Treatment, and Admit. Physician,…
Q: Design an EER schema for a database application that you are interested in. Specify all constraints…
A: Diagram :
Q: An attribute is a descriptive property of an entity.
A: An entity is a “thing” or “object” in the real world that is distinguishable from all other objects.…
Q: Define the term Identifier attribute?
A: Given: Define the term Identifier attribute?
Q: QUESTION 24 Click the box next to the multivalued attribute(s) in this conceptual diagram. Вотower…
A: Answer :-- option 5) phoneNumber.
Q: What are the uses of DEFINE and DESCRIBE? Please expand and elaborate. DEFINE uses: DESCRIBE…
A: Answer: DEFINE uses: Define means to precisely describe or state the nature, scope, or meaning of…
Q: Define key Identifier?
A: Given: Define key Identifier An area that contains one of the following is a key identifier for a…
Q: What makes a repeating group different from a simple multivalued attribute?
A: different between a repeating group and a simple multivalued attribute : A repeating group is the…
Q: It is the relation among individual entities and values. O principles patterns state relation
A: In Step 2, I have provided correct option-----
Q: Give an illustration of what a Key Attribute is.
A: An key attribute that is part of a key or is the whole key.
Q: What two courses of action are available to a designer who encounters a multivalued attribute?
A: Multivalued attributes An ER model or Entity Relationship model is a data representation model that…
Q: An attribute is a property that describes an entity's nature.
A: Introduction: A "thing" or "object" that can be recognised from all other items in the real world is…
Q: Explain Single-vAlued verSuS MultivAlued AttriButeS?
A: An attribute is considered single-valued if there is at most one value associated with it at any one…
Q: ase create a schema model out of this scenario.
A: Approach: 1- In this schema, there are four entities like a doctor, patient, practice, and…
Q: Define key terms subtype?
A: Given: Define key terms subtype?
Q: What is an entity instance?
A: It is an object of the class which is represented by the entity of the instance.
Q: What choices must be made in order to create a field specification?
A: Introduction: In a computer language, a field specification essentially describes the precise…
Q: What is the distinction between a repeated group and a straightforward multivalued attribute?
A: An attribute is a property of a table that contains a set of certain values in multiple rows that…
Q: When an attribute is part of a composite primary key, it's also a candidate key.
A: A candidate key is a field or expression that satisfies the requirements for a primary key. It is a…
Q: d) Both a and b . Suitable level of partitioning is found within the range of a) Tuple and attribute…
A: Actually, partitioning is splitting the database table into many tables.
Q: What is the difference between synthesized and inherited attributes?
A: Lets see the solution.
Q: What is a Multivalued attribute?
A: To define:- Multivalued attribute:-
Q: What is an entity set?
A: An entity set is a group of similar entities and these entities can have attributes.
Q: A composite primary key has a candidate key for one of its attributes. How would you react to this…
A: Definition: A key is a property or group of properties that allows us to identify a tuple in a…
Q: What is SiMPle verSuS cOMPOSite AttriButeS?
A: Simple attribute − Simple attributes refer to atomic values that is not subdivided into further any…
Q: The manner label controls may be resized is controlled by the attribute.
A: answer is b. AutoSize
Q: Give some specific guidelines for defining attributes?
A: To describe an attribute, you need to name it and associate it with the object and the type of…
Q: Subtype discriminators se
A: Answer: A subtype discriminator is an attribute which is according to the name suggests it is whom…
Q: Q2- What is a composite entity, and when is it used?
A: Entity – Entities are actual world items that structure the essential locks around which the entire…
Q: What is the definition of an attribute?
A: An entity is a real object which can be identified separately Example of entity is student,…
Q: What are AttriButeS On relAtiOnShiPS?
A: Here we will discuss the different types of attributes on relationship
Q: What are the two options for a designer when confronted with a multivalued attribute?
A: Multivalued attributes An ER model or Entity Relationship model is a data representation model that…
Q: Why should derived attributes not be stored in a database?
A: Derived attribute is a type of attribute where the value for that attribute will be derived from one…
Q: Explain the functional dependency between the primary key and a non-key attribute via another…
A: Functional Dependency – It is the relationship between any two attributes. Example: In relation,…
Q: What is attribute oriented programming?
A: An attribute is a changeable property or characteristic of some component of a program that can be…
Q: What is an attribute grammar?
A: It is the normal form of the CFG. The rules of this grammar is known as a semantics rule
Q: A relation that has no multivalued attributes is in _____ normal form.
A: GIVEN: A relation that has no multivalued attributes is in _____ normal form.
Q: What's the difference between a simple multivalued attribute and a repeating group?
A: Definition: What distinguishes a repeated group from a single multivalued attribute? A multivalued…
Q: When utilizing subtype associations, it is important to discuss the database table options that are…
A: Given: When utilizing subtype associations, it is important to discuss the database table…
Q: Swing Jazz Club ERD Problem
A: Possible entities are: Swing Jazz Club Swing Jazz Instructors Private Group Lessons Possible…
Q: When using subtype associations, talk about the database table choices that are accessible.
A:
What is a Derived attribute?
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