A subtype/supertype relationships are especially important in Enhanced Entity Relationship Modeling. Explain using an example how you would covert subtype/supertype relationships to relations in database design.

Q: When developing subtype associations, talk about the database table options. Discuss the factors…

A: Given: Note that we can only respond to one question at a time and that you must submit this if you…

Q: Explain how weak entity representation differs from strong entity representation.

A: Entity: The entity is a representation of an object, table, or thing in a database management…

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: It is a "Database Design" Subject. Please answer the following question. An arc is a constraint…

A: An entity-relationship model is used for defining and displaying the relationship's between the…

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: 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: 1. Total participation is where each entity participates in at least one relationship in the…

A: 1- True, Each entity in the entity set is involved in at least one relationship in a relationship…

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

A: Please find the answer below :

Q: What is the definition of an Entity set?

A: Answer An entity set is a logical container for instances of an entity type and instances of any…

Q: Convert the Entity Relationship Diagram in to QI. relational database by using MS Access (Note:…

A: maintain the oder of creating table CUSTOMER TABLE CREATE TABLE CUSTOMER( CUSTOMER_ID NUMBER(5),…

Q: Conditions that signal to the database designer that supertype and subtype relationships should be…

A: When a generic object is connected to more than one subtype, it is a super-type. Entities within an…

Q: Create an ER model related to the following entities and relationships: Department, Student,…

A: The Diagram of the ER model is attached here with the answer. Please refer to step 2.

Q: Demonstrate that if a relation contains no property that is functionally determined by all of the…

A: Introduction   Show that if a relation has no attribute that is functionally determined by all the…

Q: Describe the differences in meaning between the terms relation and relation schema.

A: A relation schema is the combination of list of attributes and their related domain types. An…

Q: see of representing relations as a graph or a matrix? What is one way that you might use either a…

A: A graph matrix is a square array that has one row and one column for each node in the graph. Node I…

Q: relations are not physically sorted but both have an index on the attributes that are being merged,…

A: In this question we have to understand the term provided where when both relations are not…

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: Please transform the following Entity-Relationship Schema (Diagram) into a Relational Schema. Please…

A: Here PNo and SSno are primary key.  The following are the entities : PROJECT, EMPLOYEE, ENGINEER The…

Q: Explain the connection between a relation's primary key and the functional dependencies that exist…

A: A primary key is an attribute that identifies a record in a database. It is used to filter data…

Q: When it comes to relationships, what is the connection between the main key of a relation and the…

A: The connection between the main key of a relation and the functional dependencies among all…

Q: When developing subtype associations, talk about the database table options. Discuss the factors…

A: NOTE: We are only authorized to answer a single question at a time; therefore, please submit this if…

Q: address phone_no Place Home Telephone name albumldentifer speed Lives Ssn copyrightDate ide…

A: The sql statements for all the above 9 tables has been created succesfully please refer in step2

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: It is important to build a hybrid merge-join technique in order to accomplish the task of combining…

A: The hybrid merge-join technique is a method used in database systems to combine two relations that…

Q: A "candidate key" is: any set of fields that determines the values of all other fields functionally…

A: Let's break down the other options:"any set of fields that determines the values of all other…

Q: Computer Science: Why normalized relations may not impair the efficiency of a physical…

A: The answer :

Q: Multivalued dependencies are avoided in relation schema when the relation schema conforms to – (a)…

A: Answer: Multivalued dependencies are avoided in relation schema when the relation conforms to 4NF.…

Q: Explain the usage of attributes and the generic name for attribute in the relationship mode

A: I have provided answer in step2

Q: Develop a variation of the hybrid merge-join approach where none of the relationships is physically…

A: Introduction: The merge join is not the same as the hybrid merge join. In the merge join technique,…

Q: Explain how functional dependencies can be used to indicate the following:• A one-to-one…

A: The functional dependency is a relationship that exists between two attributes. It typically exists…

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: A binary relationship that is one-to-many in an ERD is best represented by adding the primary key…

A: Lets see the solution.

Q: In Dbms, provide a comprehensive comparison between Entity Type and Entity Instance.

A: Comparative analysis between Entity Type vs Entity Instance.

Q: Deacribe relationship between primary key of a relation and the functional dependencies among all…

A: To be determine: Describe relationship between primary key of a relation and the functional…