Computer Science: Why normalized relations may not impair the efficiency of a physical implementation structure's physical implementation structure.

Q: giving an example explain external schema and external views

A: Given: giving an example explain external schema and external views

Q: Distinguish between a relationship and anassociative entity, and use associative entitiesin a data…

A: M: N relationships may have associative entities OR single associative attributes that characterize…

Q: A primary key of another entity as an attribute of an entity creates: A Parent-Child connection…

A: A primary key is unique key which can't be null. There can be only one primary key in one table.…

Q: Design an EER schema for a database application that you are interested in. Specify all constraints…

A: Diagram :

Q: What is Ternary Relationship?

A: Given: What is Ternary Relationship?

Q: Assume that the following figure is a part of Database relation in University Information…

A: Introduction:- The given figure shows the database schema with 5 columns and their respective keys…

Q: (e) How association rules mined from large database?

A: The Answer is in Below Steps

Q: Computer Science: Why normalized relations may not compromise an efficient physical implementation…

A: Inconsistently stored data can create  number of problems. A poorly designed database may provide…

Q: TRUE or FALSE - Generalization (is-a) is the relationship established between entities to show that…

A: Answer: the given statement is false

Q: Entity-Relationship Diagram (ERD) is one of the data modeling tools that provides a software…

A:

Q: What is the reason for normalised relations may not compromise an efficient physical implementation…

A: Normalized relations may also not jeopardize the efficiency of the simple geometric structure, as…

Q: relation's main key and its functional interactions amongst its characteristics are interconnected

A: Please find the answer below :

Q: distinguish between relationship types and relationship instances

A: Relationship type: This expresses a type of relationship that is occurring between the entities and…

Q: The objects in database description is called a. concept construct b. entity construct c. schema…

A: Given data is shown below: The objects in database description is calleda.concept constructb.entity…

Q: Computer science What is the relationship between the primary key of a relation and the…

A: The Answer is in step2

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: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: Description of Constraints Violations Domain Integrity Entity Integrity

A: Domain constrain :  if the data type is in appropriate or the value of the attribute that doesn't…

Q: Regular entity type is transformed to a relation.

A: To be determine: Regular entity type is transformed to a relation.

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 is a simple (or atomic) attribute?

A: The simple values are the atomic or unique values which can not be modified or altered further.

Q: Discuss the database table options available when implementing subtype associations.

A: Note: we are allowed to answer a single question only at a time and submit this if you want a reply…

Q: What is the reason that normalized relations may not compromise an efficient physical implementation…

A: Normalized relations don't always jeopardize the performance of the simple geometric structure,…

Q: What is an entity set?

A: An entity set is a group of similar entities and these entities can have attributes.

Q: The association between two or more entities in a database system is classified as a. dynamic…

A: The relationship is the association between two or more  entities in a database system.

Q: What distinguishes a weak entity from one that needs communication?

A: Introduction: Weak entity types are those that lack self-contained vital properties.  By comparison,…

Q: Explain why database design is critical in the educational setting.

A: Explain why database design is critical in the educational setting.

Q: What exactly is an entity?

A: In a database, an entity is a collection of characteristics. An entity might be a tangible thing…

Q: What does the term "Entity type" mean?

A: Entity type: A This concept describes a person, an organization, an object type, or a concept about…

Q: Object Oriented Database Question: What is the difference between authorization type hierarchy and…

A: Hierarchical authorization is exactly what it sounds like: it determines authorization based on a…

Q: A ternary relationship is a relationship which includes Select one: O a. Two entities O b. Three…

A: In unary relationship, only one type of entity participate in that relationship.   In binary…

Q: What distinguishesa weak entity from a strong entity that has a required relationshipto another…

A: Difference of weak entity from a strong entity: Weak Entity: It has a partial key. Dependent on a…

Q: Consider the following ER model, A) describe the database entities, attributes, relationships and…

A: Here, I have to provide a solution to the above question.

Q: 13. An unnormalized table means that: a. it has repeating groups. b. it has partial and transitive…

A: Answer: (B) it has partial and transitive dependencies. A connection that contains recurring values…

Q: 168. The complete description of database which is described in design phase and is changed rarely…

A: Database Schema  A database schema is the skeleton structure that addresses the sensible perspective…

Q: In database management system, the current set of instance or database snapshot is also called a.…

A: Required:   In database management system, the current set of instance or database snapshot is…

Q: 1. Create an entity named Doctor and Patient and create a one-to-many mapping using JPA. Doctor id…

A: Answer: I have given answered in the handwritten format in brief explanation

Q: must have a member ID, name and contact number, can be enrolled in one or more gym session. A gym…

A: A well-structured database starts from an effective Entity Relationship Diagram (ERD). For this part…

Q: Define the connection between a relation's main key and the functional relationships between all of…

A: Introduction: As the name implies, a functional relationship expresses the influence of one variable…

Q: 1) Storing same data in many places is called a) iteration b) redundancy c) concurrency d)…

A:

Q: Differentiate among following: [at least 4 differences] 1. include and extended relation in use case…

A: Use case diagram In the Unified Modeling Language, it shows the information of your machine's users…

Q: Why is it that normalized relations do not jeopardize the efficiency of a physical implementation…

A: That normalized relations do not jeopardize the efficiency of a physical implementation structure…

Q: Define the term primary key in terms of functional dependencies

A: Functional Dependency (FD) is a constraint that determines the relation of one attribute to another…

Q: What distinguishes a weak entity from a strong entity required to connect with another entity is not…

A: Introduction: A weak entity from a strong entity required to connect with another entity is not…

Q: STION 9 is used to represent the M: N relationships between two or more entities. A Mandatory B.…

A: M:N relationship: Relationships helps to connect the  related information between the  tables. They…

Q: Swing Jazz Club ERD Problem

A: Possible entities are: Swing Jazz Club Swing Jazz Instructors Private Group Lessons Possible…

Q: A primary key of another entity as an attribute of an entity creates: A Parent- Child connection…

A: Many-to-many relationship: A many-to-many connection exists when several records in one table are…