Practice Exercises 1.1 This chapter has described several major advantages of a database system. What are two disadvantages?
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- 17) Briefly discuss what features make a database a distributed database.the study of computers What is the difference between a distributed database and a multiuser database?A sales system is built using Java. The database used is MySQL with the DB name 'Sales' and has a database structure which is illustrated with the following Class Diagram: *On attachment From the existing Data Class Diagram, please make one I. Database Create a 'Sales' Database using MySQL. Field ID using Auto Increment Enter data into the Customer and Product Tables as follows: Table Customer Customer_ID Customer_Name Customer_Add Int Char(150) Char(100) 1 EFGH, PT XYZ 2 FGHI, CV LMNO 3 DEFG IJKL 4 EFGH MNOP 5 GHIJ QRST Table Product Product_ID Product_Name Stock Int Char(50) Int 1 FFFF 2 2 GGGG 7 3 HHHH 8 4 IIII 6 5 JJJJ 5 II. GUI Create a Sales Order Form with the following attached mockup: *On attachment *Note due to language differences in the mockup: Tanggal means DateKode means CodeNama means NameTambah Item means Add ItemHapus Item means Delete ItemSimpan…
- ER Modeling Suppose you are given the following requirements for a simple database for the National Hockey League (NHL): The NHL has many teams Each team has a name, a city, a coach, a captain, and a set of players Each player belongs to only one team Each player has a name, a position (such as left wing or goalie), a skill level, and a set of injury records A team captain is also a player A game is played between two teams (referred to as host_team and guest_team) and has a date (such as May 11th, 1999) and a score (such as 4 to 2). Draw the ER diagram to represent the above scenarioCreate a database table named ‘BILLING’ with the following attributes – Billing ID, Name of Customer, Customer Number , Medicine ID, Name of Medicine, ,Total Price. Create another table named ‘MEDICINE’ with the attributes – Medicine ID , Name of Medicine , Price of Medicine. Populate the medicine table with adequate number of values. Develop a JSP application that reads the medicine name, customer name and customer number and returns total price.Module 01 Introduction to Database Management Currently, the class price and other fees reside in the Registration table. If Pitt Fitness practices dynamic pricing (the management changes the prices as the classes fill up as the airlines do), should they put the class price in the Classes table? Why or why not?Entities:1. Classes (ClassID, ClassName, Room, Location, LengthofTime, MaxSize, TypeofClass, Day, Time, Description)2. ClassInstructors (ClassID, InstructorID)3. Customers (CustomerID, LastName, FirstName, StreetAddress, City, State, ZipCode, EmailAddress, PhoneNumber, BirthDate)4. Instructors (InstructorID, InstructorLastName, InstructorFirstName, InstructorStreetAddress, InstructorCity, InstructorState, InstructorZipCode, InstructorEmailAddress, InstructorPhoneNumber)5. Reservations (ReservationID, ClassID, ClassDate, ClassPrice, OtherFees, CustomerID)
