QUESTION 4   For the following collection of entities, give the assumptions concerning the relationship between entities. ORDER (order#, ordDate, cust#, cName ) ORDER_PART ( order#, part#, quantity )  PART ( part#, description, price  )

Q: Can the foreign key be extracted from another table that is not connected to it in entity…

A: Foreign keys are a part of table which are being sourced from some column in a different table.

Q: Figure Q5.8 The Product Data Model PRODUCT PK Prad Num Prod Te Prod RaieaneDate Prod Pre Pred Tye…

A: The completeness constraint specifies whether each entity supertype occurrence must also be a member…

Q: ENTITY_M M1 M2 M4 M3

A: ENTITY_M SQL query

Q: Convert the Entity Relationship diagram  to a Relational Data Model.

A: Convert the Entity Relationship diagram  to a Relational Data Model

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: Consider the following E/R diagram with isa relationships, in which every node represents an entity…

A: Here I am explaining this with an example. For this example I filled up the blank entities with some…

Q: QUESTION 2 in ERD, an Entity with a partial key is named: O Partial Entity O Srong Entity O Weak…

A: Strong Entity is an entity which is not dependent on other entity and have a primary key. Its…

Q: Consider the following E/R diagram with isa relationships, in which every node represents an entity…

A: The given problem is related to Database modeling with IS-A relationship where IS-A relationship…

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: 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: Distinguish between Data Dictionary and Entity Relationship diagram. Give examples to illustrate…

A: According to the information given:- We have to distinguish between Data dictionary and entity…

Q: Q2/II draw the entity relationship for each of the following: 1-" a student studies one or many…

A: ANSWER: Entity Relationship: Entity: Entities are the essential objects of ERDs. These are the…

Q: What does it mean to be a weak entity? Set a good example.

A: Introduction: Although an entity type should contain a key attribute that uniquely identifies each…

Q: Map entities, attributes and relations in Oracle is represented by___________ a) Conceptual Schema…

A:

Q: Show the relationships between entities and use table bridges between entities if necessary.

A: The relationships between entities:

Q: 1. Complete the following table with the correspondent statements: stmple entity, weak entity,…

A: Given is a ER diagram. ER diagram consists of Entity, Relationship and attributes. Each entity has a…

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: Give examples of relations (tables) that could have more than one candidate key.

A: You are asking the example of relation that can have more than one candidate key. Let me explain-…

Q: What is an entity set?

A: An entity set is a group of similar entities and these entities can have attributes.

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

A: Identifying the functional dependencies: The relationship sets can be indicated using the functional…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age,…

A: Answer to the given question: choice(a) First Normal Form The given relation will be in first normal…

Q: Transform the following Entity Relationship Model into Relational Schema. DeptiD EmpiD DName Name…

A: The term "schema" refers to the organization of data as a blueprint of how the database is…

Q: Suppose that the following are true: - all id column are primary keys in whichever table they are -…

A: As per our company guidelines we are supposed to answer ?️only first 3️⃣ sub-parts. Kindly repost…

Q: relationship between the entities(did not show the relationship) and the contraints

A: The solution for the above-given question is given below:

Q: 1. Consider the following relation that involves student data: GRADE (ClassName, Section, Term,…

A:

Q: Suppose that the following are true: - all id column are primary keys in whichever table they are -…

A: A relational database contains tables. Tables have data arranged in rows and columns like a grid. A…

Q: Whenever patients are seen for the first time, they complete a patient information form that asks…

A: The solution for the above given question is given below:

Q: For the following collection of entities, give the assumptions concerning the relationship between…

A: In EMPLOYEE table, EMP_CODE is primary key. In BUILDING table BLDG_CODE is primary key, And EMP_CODE…

Q: Normalise the following relation to remove modification anomalies showing all steps for 1NF, 2NF and…

A:

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: Which of the following best describes a relationship in which each instance of data in one entity…

A: Explanation:   a. one-to-one - here each instance of data in one entity is described by one instance…

Q: describes a connection in which each instance of data in one entity is represented by just one…

A: There are three types of relationships that can be represented between entities and are as follows:…

Q: Create ERDs for the following cases. • Identify entities, identifier and attributes for each entity,…

A: Solution: Entity and its attributes: Course     CourseID     CourseName Section     SectionID…

Q: Please draw an Entity-Relationship diagram for the given below MOVIE database.  The data…

A: Entity-Relationship Diagram : Entity Relationship Diagram, also known as ERD, ER Diagram or ER…

Q: single instance of the entity?  There must be a maximum of one attribute instance. There must be…

A: Below are the correct options:  There must be a maximum of one attribute instance. There must be at…

Q: Describes a relationship in which each instance of data in one entity is represented by only one…

A: The following are the three types of relationships that exist between entities: One-One…

Q: entities: Residential students which fields like student id, Student name, exam papers Transfer…

A: Given entities: Residential students which fields like student id, Student name, exam papersTransfer…

Q: State a rule that says when to extract an attribute from one entity type and place it in a linked…

A: Let’s first understand what is entity type and attributes: Entity Type: A group of different…

Q: • Apply the appropriate data types to each attribute in all entities • Show relationships between…

A: the EER diagram is an below :

Q: Using the relations ATTACHED, normalize your relations into first, second, and third normal forms.…

A:

Q: Consider the following relation with functional dependencies as shown…

A: Given relation is in First normal form

Q: Consider a Mail_Order database in which employees take orders for parts from customers. The data…

A: The following is a ER- diagram for a mail-order system with various parameter. An ER diagram is an…

Q: Create ERDs for the following cases. • Identify entities, identifier and attributes for each entity,…

A: Solution:   Entity and its attribute: Course     CourseID     CourseName   Section     SectionID…

Q: relationship between entities and attributes.

A: EMPLOYEE(EMP_NUM, EMP_LNAME, EMP_INITIAL, EMP-DOB) Here, primary key = EMP_NUM DEPENDENT(EMP_NUM,…

Q: :One of the followings is NOT a step to transforming an ERD into normalized relations normalize the…

A: Answer is denormalize the relations .b

Q: An entity student has a derived attribute "age". When mapping ER Diagram to schema, you place…

A: We have an entity 'student' has a derived attribute "age". When mapping ER Diagram to schema, where…

Q: 15- Consider the following Entitiy Relationship diagram. Which of the following relation will not…

A: In the given ER diagram, the relationship between 2 entities is m:n In case of m:n relationship,…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.