Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
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Chapter 5, Problem 5.38PAE
Program Plan Intro
Problems that might arise from vertical partitioning of a relation and general conditions influencing them.
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Given these potential problems, what general conditions influence when to partition a relation vertically?
What problems might arise from vertically partitioning a relation?
How does the primary key of a relation relate to the interdependencies among its other attributes from a practical standpoint?
Chapter 5 Solutions
Modern Database Management (12th Edition)
Ch. 5 - Prob. 5.1RQCh. 5 - Prob. 5.2RQCh. 5 - Prob. 5.3RQCh. 5 - Prob. 5.4RQCh. 5 - Prob. 5.5RQCh. 5 - Prob. 5.6RQCh. 5 - Prob. 5.7RQCh. 5 - Prob. 5.8RQCh. 5 - Explain why you sometimes have to reserve much...Ch. 5 - Why are field values sometimes coded?
Ch. 5 - Prob. 5.11RQCh. 5 - Prob. 5.12RQCh. 5 - Explain why normalized relations may not comprise...Ch. 5 - Prob. 5.14RQCh. 5 - List three common situations that suggest that...Ch. 5 - Explain the reasons why some experts are against...Ch. 5 - Prob. 5.17RQCh. 5 - Prob. 5.18RQCh. 5 - Prob. 5.19RQCh. 5 - Prob. 5.20RQCh. 5 - Prob. 5.21RQCh. 5 - State nine rules of thumb for choosing indexes.Ch. 5 - One of the strongest recommendations regarding...Ch. 5 - Explain why an index is useful only if there is...Ch. 5 - Indexing can clearly be very beneficial. Why...Ch. 5 - Consider the following two relations for...Ch. 5 - Prob. 5.28PAECh. 5 - Prob. 5.29PAECh. 5 - Prob. 5.30PAECh. 5 - Prob. 5.31PAECh. 5 - Suppose you are designing a default value for the...Ch. 5 - When a student has not chosen a major at a...Ch. 5 - Prob. 5.34PAECh. 5 - Prob. 5.35PAECh. 5 - Consider the relations in Problem and Exercise...Ch. 5 - Prob. 5.37PAECh. 5 - Prob. 5.38PAECh. 5 - Prob. 5.39PAECh. 5 - Prob. 5.40PAECh. 5 - Prob. 5.41PAECh. 5 - Consider the relations specified in Problem and...Ch. 5 - Prob. 5.43PAECh. 5 - Prob. 5.44PAECh. 5 - Prob. 5.45PAECh. 5 - Prob. 5.46PAECh. 5 - Prob. 5.47PAECh. 5 - Problems and Exercises 8-65 through 8-68 refer to...Ch. 5 - Refer to the large Pine Valley Furniture Company...Ch. 5 - Problems and Exercises 8-65i5 through 8-68 refer...Ch. 5 - Refer to Figure 4-5 0. For each of the following...
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Similar questions
- What problems can arise from vertical partitioning of a relation and general conditions influencing them.arrow_forwardHow does the primary key of a relation relate to the interdependencies of its characteristics from a functional standpoint?arrow_forwardAn explanation of the three circumstances in which the secondary key of a relation should be used instead of the main key of the connectionarrow_forward
- Explain three scenarios in which a surrogate key for a relation's primary key should be generated.arrow_forwardMCQS In RDBMS, each attribute is represented only even for foreign keys true false To convert a DBMS into 1 NF, we remove all the functional dependencies from the relation true false A relation can have maximum number of attributes necessary to support the data requirements of the enterprise true false Joins in RDBMS relations are always loss-less true false To cater for various types of anomalies, we can break the relation into two with a foreign key to reference the parent relation True False RDBMS are optimized for storage True Falsearrow_forwardDescribe three circumstances in which a substitute key for a relation's primary key should be established.arrow_forward
- What are three advantages of using a surrogate key rather than the main key to access a relation instead?arrow_forwardIt is important to build a hybrid merge-join technique in order to accomplish the task of combining two relations that are not physically ordered but do share an index on the features that are in concern.arrow_forwardexplanation of three situations in which a relation's secondary key should be set in place of the primary keyarrow_forward
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