8. The dependency diagram in Figure Q6.8 indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency dia- gram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table. E Q6.8 PRESCRIPTION DEPENDENCY DIAGRAM MedName PatientID Date RefillsAllowed PatientName Dosage ShelfLife 9. What is a partial dependency? With what normal form is it associated? 10. What three data anomalies are likely to be the result of data redundancy? How can such anomalies be eliminated? 11. Define and discuss the concept of transitive dependency. 12. What is a surrogate key, and when should you use one? 13. Why is a table whose primary key consists of a single attribute automatically in 2NF when it is in 1NF? 14. How would you describe a condition in which one attribute is dependent on another attribute when neither attribute is part of the primary key?

8. The dependency diagram in Figure Q6.8 indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency dia- gram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table. E Q6.8 PRESCRIPTION DEPENDENCY DIAGRAM MedName PatientID Date RefillsAllowed PatientName Dosage ShelfLife 9. What is a partial dependency? With what normal form is it associated? 10. What three data anomalies are likely to be the result of data redundancy? How can such anomalies be eliminated? 11. Define and discuss the concept of transitive dependency. 12. What is a surrogate key, and when should you use one? 13. Why is a table whose primary key consists of a single attribute automatically in 2NF when it is in 1NF? 14. How would you describe a condition in which one attribute is dependent on another attribute when neither attribute is part of the primary key?

Database Systems: Design, Implementation, & Management

11th Edition

ISBN:9781285196145

Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Chapter10: Transaction Management And Concurrency Control

Section: Chapter Questions

Problem 1P

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The dependency diagram in Figure Q6.8 indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table.FIGURE Q6.8 PRESCRIPTION DEPENDENCY DIAGRAM
The dependency diagram in Figure Q6.8 indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table.
The dependency diagram below indicates that authors are paid royalties foreach book that they write for a publisher. The amount of the royalty can vary by author,by book, and by edition of the book.Based on the dependency diagram, create a database whose tables are at least in 2NF,showing the dependency diagram for each table.
plz help with the following: Create a database whose tables are at least in 3NF, showing the dependency diagrams for each table.
Let the database has two relations P(a, b) and Q(m, a, n) in which a is the primary key of the relation P and m is the primary key of the relation Q. Instance of P has 70 Tuples and Instance of Q has 42. What is the maximum number of rows in the new instance produced by P Q? ( is natural join)
The dependency diagram indicates that authors are paid royalty for each book they write for a publisher.The amount of royalty can vary by author,by book ,and by edition of the book. a.Based on the dependency diagram,create a database whose tables are atleast in 2NF showing the dependency diagram for each table. b.Create a database whose tables are atleast in 3NF,showing the dependency diagram for each table.
We have the following functional dependency A -> B. The following is a well-formed database design. MYTABLE (TheKey, A, B, C) True False
Normalize the given database to 3NF (3rd normal form). Show all the dependencies: Fully, Partial dependency, and transitive dependencies. Draw the normalized database.
Given the following relation R and its functional dependencies: R(workerNumber, repairNumber, workerName, machineNumber, spentTime, repairDate, machineName, workshopNumber, workshopName ) workerNumber à workerName repairNumber à repairDate, machineNumber machineNumber à machineName, workshopNumber workshopNumber à workshopName Explain the types of all the dependencies in the relation R. Create a database whose tables are at least in 3NF, showing the dependency diagrams for each table.
Given the following relation R and its functional dependencies: R(workerNumber, repairNumber, workerName, machineNumber, spentTime, repairDate, machineName, workshopNumber, workshopName ) workerNumber à workerName repairNumber à repairDate, machineNumber machineNumber à machineName, workshopNumber workshopNumber à workshopName 1)Create a database whose tables are at least in 3NF, showing the dependency diagrams for each table
What is a database table's definition of a "transitive dependency"? A non-key characteristic is dependant on another in order to operate. First usual form of a non-key attribute is B: C: There is a symbiotic relationship between a crucial quality and another. The initial normal form of one important quality is D.
For the database relations defined in the attachments, write a tuple-based CHECK constraints so that: -> No ship can be in battle before it is launched. Since the Battles table only has the BATTLE name (and not the SHIP name), the Outcomes and Ships table will need to be used. Other websites found the wrong answer so don't copy them. Thank you

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