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- Question 1 Given the ER diagram above, answer the following questions: Name an entity type that has more than 2 relationships. Name one ket attribute and the entity type it belongs to. Name one one-to-one relationship and the entity types it relates. Name one many-to-many relationship and its entity types. Name one relationship attribute. What is the cardinality of relationship ‘employs’? What is the cardinality of relationship ‘textUsed’? Name one weak entity type Does it have a partial key? If yes, name it. Name its identifying entity type Name its identifying relationshipTitle: SkyBus Malaysia (allows users to book their bus tickets, check seat availability and view prices) You have the freedom to define the business rules and scope. The database design should reflect the defined business rules. You are required to submit a complete Entity Relationship Diagram (ERD). The ERD should be based on Crow's foot model, containing at least 8 entities and a maximum of 12 entities.Analyze the given entity relationship diagram and answer the following questions. What is the degree of “has” relationship? Identify primary key(s) Identify the category of each attribute Name the cardinalities
- Draw an Entity Relationship Diagram for the proposed system based on therequirements showing the Entities, Attributes and Cardinality between entities. Entities and Attributes Flavor Attributes: FlavorID, Name, Description Inventory Attributes: InventoryID, FlavorID, Quantity, ReorderThreshold Sale Attributes: SaleID, CustomerID, FlavorID, Date, Quantity, TotalAmount Customer Attributes: CustomerID, Name, Email, Phone Feedback Attributes: FeedbackID, CustomerID, Comment, Date, Rating Supplier Attributes: SupplierID, Name, ContactInfo Order Attributes: OrderID, SupplierID, FlavorID, OrderDate, Quantity, DeliveryDate Forecast Attributes: ForecastID, FlavorID, PredictedDemand, Date Relationships and Cardinality Flavor - Inventory One Flavor can have multiple inventory records. (1:N) Flavor - Sale One Flavor can be part of multiple sales. (1:N) Customer - Sale One Customer can have multiple sales. (1:N) Customer - Feedback One Customer can…In an entity-relationship diagram, what does cardinality represent? 1:The distinct identifier for which data is kept 2:The relationship's maximum number of entity instances 3:An entity's total amount of primary keys. 4:An entity's total amount of characteristicsR-id phone EMP-DEP SUPP- PROJ-PART SUPPLIER composing DEPENDANT COMPONENT PART composed-of M type age duncription 1. List the strong (non weak) entity types in the ER diagram. 2. Is there a weak entity type? If so, give its name and its partial key. • Weak entity:---- Partial Key:
- Draw an ER-Diagram for this situation and place minimum and maximum cardinalities on the diagram? Entity type: • EMPLOYEE with attribute: EmpID , Name (Firstname :besan, Lname) , Address :Amman, Birth_of_Date25/5/02 . • DEPARTMENT with attribute : DeptID , DeptName , Loc Relationship: Works_in Relationship between EMPLOYEE and DEPARTMENT and each employee is works in zero or many department and each department worked by one or many employee.What exactly is meant to be accomplished by using an Entity-Relationship Model, and how is this model used?Please describe what an entity-relationship model is as well as how it operates.
- What does cardinality indicate in an entity-relationship diagram? 1:The unique identification for which data is stored 2:The maximum number of entity instances for the connection 3:The total number of primary keys for an object. 4:The total number of features of an entityGiven the ER diagram above, answer the following questions: a. Name an entity type that has more than 2 relationships. b. Name one ket attribute and the entity type it belongs to. c. Name one one-to-one relationship and the entity types it relates. d. Name one many-to-many relationship and its entity types. e. Name one relationship attribute. f. What is the cardinality of relationship ‘employs’? g. What is the cardinality of relationship ‘textUsed’? h. Name one weak entity type i. Does it have a partial key? If yes, name it. ii. Name its identifying entity type iii. Name its identifying relationship Question 2 A bank provides services to customers. The banks is identified by its code and has a name and an address. The bank has several branches. A branch is identified by its code that is unique for a given bank. The branch name and address are also stored in the database. Customers deal with the bank through the bank branches. So, a customer belongs to a specific bank branch. Customers…ERD Diagram LucidChart Please be sure to accurately draw each entity, connecting lines, cardinality, actions (relationships), and attributes. Please be sure to properly label – if appropriate – your attributes. Please be sure to designate a primary key and foreign key(s) for each attribute. Please sure to properly label your associative entity – if appropriate. Please be sure to add to your diagram entities “user defined” primary key fields and appropriate foreign key fields Red Light Minor Emergency Clinic located in Wichita Falls, Texas is a 24-hour clinic that provides patients with minor emergency medical care. The clinic would like you to draw and ERD diagram that depicts their customer care process. The nurses working at the clinic can provide care to many patients, and the patient can be seen by many nurses. The clinic would only like to track the nurse’s name (first name and last name). The clinic would like to keep track of the following patient information to include…