We can convert any weak entity set to a strong entity set by simply adding appropriate attributes. Why, then, do we have weak entity sets? (a) We want to avoid the data duplication and consequent possible inconsis- tencies caused by duplicating the key of the strong entity set. (b) Weak entities reflect the logical structure of an entity being dependent on another entity. (c) Weak entities can be deleted automatically when their strong entity is deleted. (d) All of the above.

Q: how to graphically identify an entity, a the cardinality (o,N), a weak relation ship, and a strong…

A: Graphically identifying an entity in a Crow’s Foot notation: In ER model, the term entity refers to…

Q: Can foreign keys be used with weak entities in an entity relationship diagram??

A: A entity that cannot be uniquely identified by its attribute alone is called weak entity.…

Q: Diagramming is a "top down" user process.  Take the following user provided information and draw the…

A: the diagram is an given below :

Q: Define a weak entity set and a strong entity set

A: (1) An entity set refers to a collection of similar objects, concepts, or ideas that can be uniquely…

Q: A weak entity set may always be trans formed into a strong entity set by including the primary-key…

A: The Answer is given below step.

Q: Every SuperKey is a key but not vice versa True False In Relational database modeling, any complex…

A: Relational database modeling is a fundamental aspect of database management systems, focusing on the…

Q: Provide a separate ER diagram representing each of the following situations. 1.A is an entity. It…

A: ER diagram 1)

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: A weak entity set may always be turned into a strong entity set by adding the primary-key attributes…

A: A weak entity set may permanently be transformed into a strong entity set by including the main…

Q: A weak entity set may be turned to a strong entity set by adding the primary-key attributes of its…

A: Introduction: Adding the major key features of an identifying entity set to the attributes of an…

Q: A weak entity is defined as one that does not meet the requirements of any of the two criteria…

A: Let's have a look at the solution. Two criteria must be fulfilled in the order to be classed as a…

Q: Draw an ER diagram expressing the total participation of an entity type “BURGER” in a binary…

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

Q: Any weak entity set can be turned into a strong entity set by just adding the right properties. So,…

A: Your answer is given below.

Q: nvert the following ERD in Chen's notation to an ERD in IE notation. All entities, attributes, and…

A: The answer for the given question is as follows

Q: Each weak entity collection may be fortified by adding more relevant attributes. The question then…

A: Introduction: Entity sets and weak entity sets are fundamental concepts in database design. Weak…

Q: fying entity set to its attributes, a weak entity set may always be transformed into a strong entity…

A: A weak entity set can always be made into a strong by adding to its attributes the primary key…

Q: 1. If a weak E exist and has Then, what m

A: 1 . If a weak entity E depends on entity S to exist and has 1:m relationship with entity F. Then,…

Q: The disjoint rule specifies that if an entity instance of the supertype is a member of one subtype,…

A: The question is to find the given statement is true or false.

Q: Create an Entity-Relationship Model to represent the data requirements of the problem given below.…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

Q: A person can be an employee, alumnus, or a student. For a person, P_id (identifier), date of birth,…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

Q: A simple(Atomic) attribute is Select one: O a. an attribute that can be devided to smaller sub parts…

A: A simple (atomic) attribute is__________?

Q: Consider the depicted state for relation R in the table below: C y 2. Which of the following…

A: Correct regarding functional dependencies in given relation R

Q: Differentiate between WPA2 personal and WPA2 Enterprise authentication techniques.

A: Actually, given question regarding WPA2 personal and WPA2 Enterprise authentication techniques.

Q: 3.4. Which statements are correct? a. A weak entity type can only have one attribute type. b. A weak…

A: The solution to the given problem is below.

Q: In the context of EER data modeling, one can represent entities using superclasses and subclasses.…

A: Extended-ER (EER) data model: EER is recognized as the high-level data model that is capable of…

Q: A weak entity set may always be made stronger by adding the primary-key attributes of its…

A: Introduction: A weak entity set will always be better off if its main features are added to its…

Q: Create an Entity-Relationship Model to represent the data requirements of the problem given below.…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

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.