student takes ID ID course id sec id name dept name tot_cred semester vear grade section course department course id sec id semester Course id advisor title dept name id dept_name building budget vear time_slot credits building гоот_литber time_slot_id time slot id day start time end_time prereq instructor classroom Course id REereg id building room_number capacity пате dept_name salary teaches ID Course id sec id semester ear Figure 2.9 Schema diagram for the university database.

Q: EER (Enhanced Entity Relationship) diagram: C) Person o person ID : int name: string address :…

A: Introduction and the overview of the query -In this question we have to understand about the given…

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: Given the following EER diagram, write down the corresponding relations using the method taught in…

A: The answer is

Q: Develop ERD (Entity Relationship Diagram) for one of the following two scenarios. NOTE: No further…

A: Answer: We have drawn the the Entity relation diagram  for the one of the following so we have done…

Q: An ID-dependent Weak Entity typically result in a table with a compound primary key with at least…

A: A weak entity in a relational database is one that can't be uniquely identified by just its…

Q: Regards to the diagram below (figure 4.12), answer the following questions using the multiple-choice…

A: The answers for the following question can be derived from the diagram given. How is of_type…

Q: Based on the following functional dependencies, for the relation SCHEDULE bring it into a set of…

A: To bring the relation SCHEDULE into a set of 3NF relations, we need to identify the functional…

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: Which one is correct Consider the following ER diagram depicting the relationship of an employee and…

A: To Do: To choose the correct option.

Q: It is possible for the same characteristic to have both a main key and a candidate key.

A: Main key, also known as a primary key, is a specific candidate key that is chosen as the primary…

Q: Assume that the advisor relationship set is a one-to-one match. To guarantee that the one-to-one…

A: given: One record in one table may be linked to one or more records in another table in a…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Relational Database schema is given below :

Q: Assume that there is a one-to-one match in the advisor relationship set. What further restrictions…

A: Introduction: In mathematics, cardinality refers to the number of items in a given set. Database…

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: Consider a relation X with six attributes WYSMFE where WS is a composite primary key for X. Assume X…

A: The handwritten solution is provided below:-

Q: Consider the following relation that involves student data: RADE (ClassName, Section, Term, Grade,…

A: Primary key for the given relation is (ClassName, Section, Term, StudentID)  Here the functional…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Entity Relationship diagram mainly contains 3 components, that are Entities, Relationships and…

Q: can be converted to a strong entity set by simply adding the appropriate attributes. Why,

A: For the following reasons, a weak entity set is required:

Q: Transform into relational model (relations). IMPORTANT: The diagram needed for the second part uses…

A: Er diagram stands for Entity relationship diagram which contains mainly three components that are…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.