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Q: Question 6 In order to make it easier to compare the relation scheme diagram to the UML diagram, we…

A: In order to make it easier to compare the relation scheme diagram to the UML diagram, we (check all…

Q: When converting an ERD to a database design, Foreign key(s) for a M:N (many-many) relationship are…

A:

Q: Name ID School City (0,n) Salary Start Date End Date To Hire (0,n) Teacher Birth Date Student

A: The solution is an given below : Note: since you have posted multiple questions, we will provide the…

Q: how do you translate an Entity Relational Diagram to a Relational Diagram?

A: We are going to learn conversion of Entity Relational Diagram to a Relational Diagram. It takes…

Q: What are the benefits of the use of a surrogate key?

A: GIVEN: What are the benefits of the use of a surrogate key?

Q: What is Ternary Relationship?

A: Given: What is Ternary Relationship?

Q: What distinguishes structural from data independence?

A: When modifications to the file structure may be made without affecting the appliance program's…

Q: I need help with relational models.

A: Solution - In the given question, we have to discuss about the relational models.

Q: One of the properties of an IA composite primary key has a candidate key. What response would you…

A: Introduction Key Key is an attribute or group of characteristics that identifies a tuple or row.…

Q: Description of three circumstances in which it is appropriate to generate a replacement key for the…

A: In computer code engineering, incremental Development might be a process that stresses the value of…

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

A: The Answer is in step2

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: What does it mean to be related? How do you define a relation's properties?

A: Relation is a property of set that we study in discrete math. Two set be said as related when it…

Q: A_ _is a property of the entire relation, rather than of the individual tuples in which each tuple…

A: 1) A key in DBMS is an attribute or a set of attributes that help to uniquely identify a tuple (or…

Q: What are the two aggregation principles? What are the two aggregation principles?

A: In general, an aggregate is a mixture or gathering of smaller ideas or components. In…

Q: What are three signs that a surrogate key should be generated for the primary key of a relation…

A: A surrogate key is one that serves no practical or operational purpose. It's "artificial" and made…

Q: Recognize when to use supertype/subtype relationships in data modeling.

A: Data Modeling: The process of creating a data model for the data to be stored in a database is…

Q: 1- Mapping this ER diagram to Relational Model diagram 2- Normalization of the relation scheme (1NF,…

A: Given ER diagram contain many entities and attributes. In conversion of ER diagram to Relational…

Q: The conditions under which the database designer should employ supertype and subtype connections are…

A: There are a few conditions under which the database designer should employ supertype and subtype…

Q: Apply the ER-to-Relational Mapping Algorithm to get the relational model (database schema) from the…

A: For relationship between Dependent and employee is 1:N with the dependent being weak entity. So we…

Q: Transform the ER Diagram given above into Relational Schemas.

A: Relationship between Library and Book is 1:M. So we need to include primary key of Library into…

Q: Suppose you are going to design an instant messaging application called Telegraph. Telegraph is…

A: It is defined as a collection of information that is organized so that it can be easily accessed,…

Q: The conditions under which the database designer should employ supertype and subtype connections are…

A: The answer for above question is given in the below step

Q: What does it mean to be related? How do you define a relation's properties?

A: Introduction: A relation is a table that has two dimensions. It is divided into rows (tuples) and…

Q: When should data modeling use supertype/subtype relationships?

A: Supertype/subtype relationships are a fundamental concept in data modeling, enabling the…

Q: A Dbms comparison between Entity Type and Entity Instance would be good.

A: In a database management system (DBMS), the concepts of entity type and entity instance are…

Q: What distinguishes structural from data independence?

A: Structural Independence: Structural independence occurs when changes to the file structure may be…

Q: The conditions under which the database designer should employ supertype and subtype connections are…

A: Definition: A kind of generic entity that is connected to one or more sub-types is known as a…

Q: Discuss the classification of traceability relations; elicit a brief example that describes the…

A: Introduction: Traceability relations are defined as the degree to which a relationship can be…

Q: ite prima

A: A key is an attribute or combination of characteristics that empowers us to recognize a tuple in a…

Q: In a three-schema design, the exterior, internal, and conceptual levels are all strictly segregated,…

A: The external level or programming level, the internal level or database administration level, and…

Q: how to map ERR model to relational model

A: In the above question, a statement is mentioned

Q: One of the properties of an IA composite primary key has a candidate key. What response would you…

A: Introduction Key A key is an attribute, or group of characteristics, that enables us to recognise a…

Q: What distinguishes structural from data independence

A: Introduction When alterations to the database structure have no impact on DBMS's capacity to access…

Q: How does the primary key of a relation relate to the interdependencies of its characteristics from a…

A: The primary key is a unique identifier for each record in a table. It is used to ensure that each…

Q: What are three signals that a surrogate key should be generated for the primary key of a relation…

A: In relational databases, a surrogate key is an artificial primary key that is generated for a…

Q: How are recursive relationships managed in data modeling?

A: In data modeling, It often encounter relationships when an entity within a data model is related to…