employee (ID, person_name, street, city) works (ID, compапy лате, salary) соmpany (comрапулате, сіty) manages (ID, manager_id) Figure 3.19 Employee database.
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Give an SQL schema definition for the employee
Choose an appropriate domain for each attribute and an appropriate primary
key for each relation schema. Include any foreign-key constraints that might be appropriate.
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- DATABASE MANAGEMENT Design an EER diagram for a database used to manage a racket sport association (for example, US Tennis Association). The following is a list of simplified requirements. Each member of the sport association has an id, a name, sex, age, an address, a phone number. A member can be a player, an umpire (i.e., referee), a coach, or an officer (i.e. a member can belong to one or more of the above categories). An umpire has a type (i.e., national, international, etc.). A coach has a certificate (i.e., level I, II, etc.). An officer has an office (i.e., a room number such as 101 or 212 in the main building). Each club has a name, an address, an owner, and a phone number. Except for some officers, every member belongs to one or more clubs (Hint: Make relationships between the subclasses of “member” and club). A player can be a professional or an amateur (but not both). A professional player has a rank (such as 1, 2, etc. within the association), and a coach (Note: Every…DATABASE SYSTEMS: QUESTION Do as directed This describes the business process to publish an academic paper. The author submits a paper to an editor in chief of a journal. The editor first checks whether the paper fit the theme of the journal. If not, the editor rejects the paper. Otherwise, the editor in chief assigns the paper to a number of reviewers. The reviewers review the paper, and write a review. The review is sent to the editor in chief. The editor in chief then assesses the quality of the paper with the help of reviewers’ comments. If the quality is good, the paper will be accepted, and the author notified. Furthermore, the paper is forwarded to the publisher for publication. If the quality is bad, the editor rejects the paper. Apply query to only access to compile the final decision to editor in chief and only visualized by author not reviewersSystem Description: Branches Dream Home has branch offices in cities throughout the United Kingdom. Each branch office is allocated members of staff, including a Manager, who manages the operations of the office. The data describing a branch office includes a unique branch number, address (street, city, and postcode), telephone numbers (up to a maximum of three), and the name of the member of staff who currently manages the office. Additional data is held on each Manager, which includes the date that the Manager assumed his or her position at the current branch office, and a monthly bonus payment based upon his or her performance in the property for rent market. Staff Members of staff with the role of Supervisor are responsible for the day-to-day activities of an allocated group of staff called Assistants (up to a maximum of 10, at any one time). Not all members of staff are assigned to a Supervisor. The data stored regarding each member of staff includes staff number, name, address,…
- System Description: Branches Dream Home has branch offices in cities throughout the United Kingdom. Each branch office is allocated members of staff, including a Manager, who manages the operations of the office. The data describing a branch office includes a unique branch number, address (street, city, and postcode), telephone numbers (up to a maximum of three), and the name of the member of staff who currently manages the office. Additional data is held on each Manager, which includes the date that the Manager assumed his or her position at the current branch office, and a monthly bonus payment based upon his or her performance in the property for rent market. Staff Members of staff with the role of Supervisor are responsible for the day-to-day activities of an allocated group of staff called Assistants (up to a maximum of 10, at any one time). Not all members of staff are assigned to a Supervisor. The data stored regarding each member of staff includes staff number, name, address,…System Description: Branches Dream Home has branch offices in cities throughout the United Kingdom. Each branch office is allocated members of staff, including a Manager, who manages the operations of the office. The data describing a branch office includes a unique branch number, address (street, city, and postcode), telephone numbers (up to a maximum of three), and the name of the member of staff who currently manages the office. Additional data is held on each Manager, which includes the date that the Manager assumed his or her position at the current branch office, and a monthly bonus payment based upon his or her performance in the property for rent market. Staff Members of staff with the role of Supervisor are responsible for the day-to-day activities of an allocated group of staff called Assistants (up to a maximum of 10, at any one time). Not all members of staff are assigned to a Supervisor. The data stored regarding each member of staff includes staff number, name, address,…Property Estate AgentClients who want to sell their home go to an estate agent, who will take measurements of their home, flat, or bungalow and record them on a card that is organised by area, price range, and type of property. A similar type of card is completed by potential purchasers and filed in an A4 binder by buyer name. The estate agent matches the needs of potential buyers with available houses on a weekly basis and provides them the data of selected properties. When a sale is completed, the buyer acknowledges that the contracts have been exchanged, the client's information is removed from the property file, and the customer receives an invoice. The top copy of a three-part set is given to the client, with the other two copies being filed.The invoice copies are stamped and archived once payment is received. Monthly invoices are reviewed, and accounts that have not been paid within two months receive a reminder (the third copy of the invoice).Question 1 With reference to…
- ACTIVITY DIAGRAM ASSIGNMENT STUDENT COURSE REGISTRATION • The advisor opens the course registration portal. • The advisor enters student information into the system. • A validation test is conducted. If the student is not registered, the system refers the student to the registration office and ends the process. • If, however, the student is registered, the advisor checks the student's academic term. • If the student is in an academic term one, s/he is given only 5 courses. However, if the student is in his or her second academic term and above, s/he is given 6 courses. • Confirm course and end process. DiagramER-Diagram and EER-Diagram Medinah Transport dealership sells Proton, Ford, Honda and Toyota. The dealership keeps the cars information such as vehicle number, list price, chassis number, made (eg. Honda, Toyota), model name (eg. Civic, Camry) and year. They also keep information about all sales they have made (for instance, invoice number, buyer’s name, data of purchase and amount paid for the car). In order to contact the buyers in the future, the dealership also keeps their telephone number and address. Some buyers bought more than one car. For statistical purposes, the buyer’s gender and age are also captured. Dealer also needs to know the staff who sold the cars to the buyers such as their staff ID, name, phone number, gender, date of birth, address and basic salary. The dealership has two types of staff - sales agent and admin. Sales agent will have sales quota, basic salary and sales commission from selling cars. While admin staff will receive basic salary and overtime (based on…Database Design the database following an ER model- The ER should contain all necessary information such as entities, attributes, relationships, cardinalities etc. for this example (as shown in the picture) and do changes if necessary
- IDENTIFICATION: Identify the tag or tag and attributes to use in the following situations.Explain the role of a primary key.Deliverables: UML Activity diagram for placing the pizza delivery order (Use Visio to create the Diagram) Overview Statement: For its chain of fast food outlets, Chicago Bino's Pizza has recently installed a new online system to speed up deliveries and improve customer satisfaction. When a customer places an online order to have pizza delivered, an employee verifies the order and checks the customers phone number against a data store containing past orders. If the order is for a repeat customer, the system matches the number with the customer database and displays the customer record on the screen. (Customer records contain a variety of information, including whether the customer's dog bites.) For first-time customers, the employee (salesman) verifies the caller's name and address, and creates a record in the customer database. The order taker (salesman) verifies the customer's pizza order within 10 minutes after the customer placed the order online. After 10 minutes from placing…