is a term used to measure the number of relationships between an entity and other entiti Multiplicity Specialty Associativity Cardinality
Q: Q4 (Entity-Relationship (ER))
A: The relationship between entities that must be stored in a database is described by an Entity…
Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…
A: I will explain it in details,
Q: Draw an ERD (Entity relationship diagram) for the supermarket Make sure you identify all the…
A: Entity Relationship diagram contains mainly 3 components. That are entities, attributes and…
Q: Contrast among the following; Generalization; Specialization Entity type ;Entity Instance
A: Answer:
Q: Office stestbiame deptCode lastName frstName tacid rank Department employs Credits Faculty sRated…
A: a)entity type that has more than 2 relationships are- class and department class- relationship with…
Q: Entity-Relationship Diagrams (ERD) Background Information: Study the following statements to…
A: Explanation: Following are the Business Rules and ER Diagram, Business Rules: A academic consultant…
Q: Modify the Er diagram given below and add 5 to 6 more additions to it such as entities attributes…
A: RE DIAGRAM for college management system
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: The notation (0,N) is attached to entity E1, the notation (2,N) is attached to entity E2. What is…
A: Here (0, N) notation represent that (MIN, MAX) relationship . It means E1 entity can have minimum…
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: The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity,…
A: The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity,…
Q: Ov
A: The degree of has relationship is two.
Q: Generalization is the process of defining a general entity type from a collection of specialized…
A: Generalization is a process of a new entity being formed using the collection of two or more…
Q: In DBMS, the property of interest which further describes the entity is classified as a.…
A: d. attribute
Q: Give an example of how the distinction between a candidate key and an entity type identifier is…
A: Entity Identifiers: Entity IDs are critical properties that are used to uniquely identify each…
Q: is a term used to measure the number of relationships between an entity and other entities. O…
A:
Q: enhanced entity relationship diagram using the diagram below
A: ERD stands for Entity Relationship Diagram. These types of diagrams are also known as ER diagrams…
Q: Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all…
A: The given problem is related to database entity relationship diagram where the solution will include…
Q: Show the relationships between entities and use table bridges between entities if necessary.
A: The relationships between entities:
Q: In a few words, describe the logical link between the entities entity, attribute, and relationship.
A: According to the question An entity is a distinguishable actual-international object that exist. An…
Q: How is a relationship between entities indicated in an ERD? Give an example using the Crow’s Foot…
A: Relationship Representation in ERD(Entity Relationship Diagram):- ER diagram or Entity…
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: The degree of a relationship indicates Group of answer choices the number of entities participating…
A: The number of entities participating in the relationship is called degree of a relationship. A…
Q: The below Entity Relationship Diagram (ERD) is in second normal form. Draw a new ERD in third normal…
A: Below is the ER diagram in third normal form with explanation:
Q: A subtype/supertype relationships are especially important in Enhanced Entity Relationship…
A: A supertype is a generic entity type that has a relationship with one or more subtypes. A subtype is…
Q: an invoice is written by one sales rep but a sales rep writes many invoices a vendor sells many…
A: The ask is to do the following: Identify the entity Identify the entity’s attribute Identify the…
Q: Describe the objective of an entity-relationship model.
A: Entity Relationship Diagram: The ERD (or Entity Relationship Diagram) is a tool for discussion,…
Q: Exercise One | 1..* K 0..1 G Identify all the relationships in the UML relationship diagram above.
A: Symbols are: form first image: (A B F and E) A "has a" B (Aggregation), B "is a" E (Inheritance)…
Q: Explain the terms: Entity Attribute Types of relationship Cardinality Optionality. I NEED…
A: Entity: - Any existing real word object is an entity in the Database. Each entity has attributes,…
Q: The cardinality ratio depends on the real-world meaning of the entity types involved and is defined…
A: 1. Each student can have only one social security number and a social security number can belong to…
Q: 46. ______________ express the number of entities to which another entity can be associated via a…
A: Here is the solution which is mentioned below:
Q: An entity type whose existence depends on another entity type is called a entity. Select one: O a.…
A: The answer of the question is given below
Q: Q2- What is a composite entity, and when is it used?
A: Entity – Entities are actual world items that structure the essential locks around which the entire…
Q: A ternary relationship is a relationship which includes Select one: O a. Two entities O b. Three…
A: In unary relationship, only one type of entity participate in that relationship. In binary…
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…
Q: On which side of a many-one connection does the main key of one entity serve as a foreign key? On…
A: Given that: On which side of a many-one connection does the main key of one entity serve as a…
Q: The cardinality ratio depends on the real-world meaning of the entity types involved and is defined…
A: 1. Student can only one social Security number while a social Security number can belong to only one…
Q: • Each waiter has a date when they started serving. • Each waiter is also assigned many reservations…
A: The given problem is related to designing the database where the system description is provided. The…
Q: In an entity-relationship diagram, what does cardinality mean? 1:The data is saved concerning a…
A: Foundation This question was taken from the Database Management System paper that was given in the…
Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…
A: Legal system – business rules:• In the legal system, a judge hears many cases throughout their…
Q: constraint requires that an entity belong to no more than one lower-level entity set. O Total O…
A: An ER diagram shows the relationship among entity sets. It is a visual representation of different…
Q: Entity relationships, connecting with a linked entity. Primary Key (PK) Sales Person Product Part…
A: Following are the tables for mysql for above ERD.
Q: relationship between entity supertype and entity subtype is known as _______. Partial…
A: A relationship between entity supertype and entity subtype is known as a Total participation…
Q: Describe the purpose and operation of an entity-relationship model.
A: Models of entity relationships are based on the relationships between entities in the actual world.…
Q: It is requested to draw an entity relationship diagr Information about the subject are given below.…
A: ER Diagram represents Entity Relationship Diagram It shows the relationship of element sets put away…
Q: Consider the following scenario A company provides catering services for clients who need…
A: Actually, given information: A company provides catering services for clients who need…
Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…
A: The solution is :
Q: An entity that depends on an other entity to exist is called ________ entity. Derived…
A: An entity is an object that exists. In database administration, an entity can be a single thing,…
Step by step
Solved in 2 steps
- When an attribute of one entity type references another entity type's attribute, this means that: O it is a derived attribute O weak entity type exists O a relationship exists O it means nothingDefine an entity-relationship model and describe its purposePlease describe what an entity-relationship model is as well as how it operates.
- List the Entity-Relationship (ER) model's various characteristics.There are a number of potential difficulties that can arise when a relationship is split vertically.Entity Instance is a single occurrence of an entity fixed part of the business something that happens, but rarely something that happens only once
- ENHANCE ENTITY RELATIOSHIP DIAGRAM The entity type PERSON has the following attributes: SSN, name, address (City/State/Zip), date of birth, age, and contact number. The entity also has the three subtypes: CAMPER, BIKER, AND RUNNER. Draw a separate diagram segment for each of the following situations: 1. At a given time, a person must be exactly one of three subtypes. 2. A person may or may not be one of these subtypes. However, a person who is one of these subtypes cannot at the same time be one of the other subtypes. 3. A person may or may not be the one of these subtypes. On the other hand, a person may be any two (or even three) of these subtypes at the same time. 4. At a given time, a person must be at least one of these subtypes.______ represent real-world associations between entities. Entities Attribute Relationships Primary KeyEntity-Relationship Diagrams (ERD) Background Information: Study the following statements to determine the relationship between the entities • Each student has an academic advisor. An academic advisor can advise many students. • Each academic advisor has a specific parking spot assigned. • Each student can take up to five courses. and each course has up to 24 students. • Several adjunct faculty members share an office. Tasks: 1. Draw an ERD (it is just one diagram) showing the entities and the relationships among them. Include associative entities, if any. Also, remember to show cardinality (1:1, 1:M, M:N); you can use the cardinality notation or the crow’s foot notation. Remember that this is a graphical language, and you must follow the shapes of the elements in the diagram.