what is another term for an entity unique identifier? a) local key b) primary key c) association d) foreign key

Q: What kind of data would you keep in an entity subtype?

A: Given: A subtype is  sub-grouping of the entities that make up an entity type that has significance…

Q: What considerations are essential when determining the cardinality of a relationship?

A: Cardinality is the amount of instances or entities that can be connected to each side of a…

Q: oin three relation in dbms and operators select, project operation after joining

A: Relational algebra is a query language. It consists of different operations such as: Join…

Q: Question 36 A rule that states that each foreign key value must match a primary key value in the…

A: In this question we need to choose the correct rule from the given options which states that each…

Q: Question 19 Which of the following is a relationship between two entities? Group of answer choices…

A: In the intricate realm of data modeling and database design, the concept of relationships between…

Q: Justify how the main key of a relation is connected to all of the qualities of the relationship in…

A: Introduction: A primary key is a database characteristic that uniquely identifies a record. It's…

Q: Can you give an example of an entity in the MiniMarket Warehouse Warehouse Database, please input in…

A: A data warehousing is an electronic method of organizing,analyzing and reporting information.In…

Q: Database Design and Business Applications Development se Study 1 – The following exercise allows you…

A: Based on the data provided in the case study the following notes were created identifying the…

Q: A potential primary attribute is a constituent element of a composite primary key.

A: In database management systems, a primary key is a unique identifier for each record in a table. It…

Q: What is identifying relationship?

A: Identifying relationship An identifying relationship is a relationship between two entities in…

Q: latitude ER Diagram longitude description Convert to relation schema location last_visited

A: A rеlational schеma is a bluеprint for a rеlational databasе. It dеfinеs thе tablеs in thе databasе,…

Q: List the two most crucial qualities of a prospective key.

A: The answer of the question is given below

Q: You are required to draw a complete Crow's Foot ERD that includes the following entity relationship…

A:

Q: Create a list of the attributes that you would want to see in an entity identification property.

A: The solution is given in the below step

Q: Based on the diagram below, which entity is optional? HE Entity A Entity A O Both Entity A and…

A: When we say that an entity is "optional" in the context of a database or data modeling, it means…

Q: A prospective key is an attribute that is part of a composite primary key.

A: One primary key is a composite one.   The primary key in database management systems consists of two…

Q: List the two most crucial qualities of a prospective key.

A: The prospective approach introduced the possibility of recognizing several possible states in the…

Q: What does the term "relationship" mean?

A: A relationship, in the context of databases, is a situation that exists between two relational…

Q: A prospective key is an attribute included in a composite primary key.

A: In the realm of database design, keys play a vital role in establishing relationships and ensuring…

Q: Which of the following Crow's Foot symbols can be placed at the location pointed to by the arrow in…

A: When constructing a diagram using the Crow's Foot notation, it is important to select the correct…

Q: Define the term Entity integrity rule?

A: Given: Define the term Entity integrity rule?

Q: is a one of entity change tools. O fillet O rotate move non of the above

A: The answer is FILLET

Q: Which of the following is the term for whether or not an instance of one entity class must…

A: Ordinality refers to the sequence or order in which instances of one entity are associated with…

Q: What kind of data would you keep in an entity subtype?

A: Database is basically a software that manages the collection of related data. The data can be…

Q: In a composite primary key, a prospective key is a prospective characteristic

A: One primary key is a composite one.The primary key in database management systems consists of two or…

Q: Contrast among the following; Primary key; Composite key Relation; Relationship

A: Data Base Management System: Data Base Management System also abbreviated as DBMS is a software that…

Q: What exactly does it mean to define a relation? Determine the aspects that contribute to the…

A: Start: A connection is the same thing as a table with two dimensions.  It includes a certain…

Q: What does the term "relationship" mean? What are the qualities of a relation defined as?

A: A relation is a table with two dimensions. It includes the quantity of columns and rows (tuples)…

Q: one employee. ERD with primary and foreign key

A: A company has many department with many employees .  But each department has only one employee .…

Q: ERD and Keys A contractor’s main entities are its customers, employees, projects, and equipment. A…

A: The entities used in ER Diagram are: CUSTOMER EMPLOYEE EQUIPMENTS PROJECT The attributes for the…

Q: What general criteria, in light of these possible difficulties, determine whether it is appropriate…

A: Vertical partitioning issues Vertical Partitioning: Vertical partitioning is the division of logical…

Q: Draw a Model Entity Relationship diagram with the following data. Entity Person Forecast Recipe…

A: In this question, we have to design a UML ER diagram for the given medical industry system.Let's…

Q: Using the figure in previous problem, list each entity and state what foreign key, if any, would be…

A: In the previous answer, we have identified the business rules. Now we will identify the foreign key…

Q: The "Annual_Sal" attribute in the "BOOK" Entity type is considered as:

A: ER diagram is also called as the Entity Relationship diagram. In the above ER diagram BOOK is the…

Q: Explain four relationship merging issues

A: Introduction Four problems arise during the merging of the relationships, each with a fix. Relation:…