S1 S2 53 S4 SS Answer the following question according to the dependency diagram shown in the above Figure. Identify the indicated dependencies S4 --> 55 O 4-> 55 represents a transitive dependency, because S4 depends on an attribute (S5) that is not part of a primary key. O S4 -> 55 represents a transitive dependency, because S5 depends on an attribute (S4) that is part of a primary key. O 54 --> 55 represents a transitive dependency, because S5 depends on an attribute (S4) that is not part of a primary key. All of the above

S1 S2 53 S4 SS Answer the following question according to the dependency diagram shown in the above Figure. Identify the indicated dependencies S4 --> 55 O 4-> 55 represents a transitive dependency, because S4 depends on an attribute (S5) that is not part of a primary key. O S4 -> 55 represents a transitive dependency, because S5 depends on an attribute (S4) that is part of a primary key. O 54 --> 55 represents a transitive dependency, because S5 depends on an attribute (S4) that is not part of a primary key. All of the above

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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DeepClean StaffID ContractNo HoursPerWeek StaffName OfficeNo OfficeLocation 101 C90 16 Anne O25 Ampang 102 C90 24 Rita O25 Ampang 103 C91 28 Mandy O7 Kg Baru 101 C91 16 Anne O7 Kg Baru Draw the dependency diagram and label the primary key(s), partial dependency(s) and transitive dependency. Based on the dependency diagram in Question (a), show the Second Normal Form (2NF) relations. Convert the relations to the Third Normal Form (3NF).
A transitive dependency is equivalent to which of the following?A) A functional dependency between two or more key attributes.B) A functional dependency between two or more nonkey attributes.C) A relation that is in first normal form.D) A relation that is in second normal form.
Please show the non-trivial functional dependency of the question below: Timesheet (StaffID, FamilyName, OtherNames, TimesheetID, Date, StartTime, EndTime, StoreID, Location, State, RoleCode, RoleName, Rate, Total, TotalPay) please display in functunial dependency notiation. thank you!
Question: Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was initially created with the attributes BookID (an id that library assigns), ISBN, CopyNr (used to differentiate copies of the same book), Title, PublYear, Author, and AuthorBornYear. Primary key: BookID, CopyNr and Author Candidate key: ISBN, CopyNr and Author Below you see dependencies of attributes: Dependency 1 (D1): ISBN, Title, PublYear, AuthorBornYear were dependent on BookID, CopyNr, and Author Dependency 2 (D2): Title and PublYear were dependent on BookID, CopyNr Dependency 3 (D3): AuthorBornYear was dependent on Author First determine which normal form (1NF, 2NF, 3NF, or BCNF) the above relation is, and why. Then, if necessary, convert the above relation to the highest normal form (BCNF). Write any assumptions that you make Subject: MYSQL
3. a) A relation that does not have a composite primary key still has partial functional dependency. A) TRUE B) FALSE If you choose “False”, please explain below why it is “False. 3. b) For a table to be in 2NF, both of the following must be true: 1) this table that must be in 1NF and 2) this table must have no partial functional dependencies. TRUE FALSE If you choose “False”, please explain below why it is “False.” 3. c) A relation that is in 1NF must be in 3NF if the primary key consists of only one attribute. TRUE FALSE If you choose “False”, please explain below why it is “False.”
To keep track of students and their advisors, a university uses the table structure shown below. Assuming that the sample data are representative, draw a dependency diagram in Visio that shows all functional dependencies including both partial and transitive dependencies. (Hint: Look at the sample values to determine the nature of the relationships.) Attribute Name Sample Value Sample Value Sample Value Sample Value STUDENT_ID 123456 478596 123456 389987 STUDENT_NAME Kim Brutt Mary King Kim Brutt Donald Nouglle ADVISOR_ID 123 473 567 123 ADVISOR_NAME John Smith Kim Young Julia Roberts John Smith DEPARTMENT_CODE AIT CS ECE AIT DEPARTMENT_NAME Applied Information Technology Computer Science Electrical Engineering Applied Information Technology APPOINTMENT_DATE 01/01/2009 05/03/2009 03/06/2009 01/01/2009
Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno, cname, group) R(A, B, C, D, E, F) Divyansh sharma AB, C C F D-E In which normal form is the relation R is in ? (A) First normal form (B) Second normal form (C) Third normal form (D) Boyce Codd normal form
Primary key identifies a unique tuple of a relation, true or false?
Which of the following functional dependencies are satisfied (and not satisfied) by this relation and Why? (g) AD → BC WHY? (h) D → B WHY? (i) D → C Why? (j) C → D Why?
Consider the following relation for published books:BOOK (Book_title, Authorname, Book_type, Listprice, Author_affil, Publisher)Author_affil refers to the affiliation of the author. Suppose the following dependencies exist:Book_title → Publisher, Book_typeBook_type → ListpriceAuthor_name → Author-affil (a) What normal form is the relation in? Explain your answer.(b) Apply normalization until you cannot decompose the relations further. State the reasons behind eachdecomposition.
Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was initially created with the attributes BookID (an id that library assigns), ISBN, CopyNr (used to differentiate copies of the same book), Title, PublYear, Author, and AuthorBornYear. Primary key: BookID, CopyNr and Author Candidate key: ISBN, CopyNr and Author Below you see dependencies of attributes: Dependency 1 (D1): ISBN, Title, PublYear, AuthorBornYear were dependent on BookID, CopyNr and Author Dependency 2 (D2): Title and PublYear were dependent on BookID, CopyNr Dependency 3 (D3): AuthorBornYear was dependent on Author First determine which normal form (1NF, 2NF, 3NF or BCNF) the above relation is, and why. Then, if necessary, convert the above relation to the highest normal form (BCNF). Write any assumptions that you make.
Please type if possible or write eligibly Define Transitive Dependency. Give a good Example. Define Partial Dependency. Give a good Example.