Modern Database Management
13th Edition
ISBN: 9780134792293
Author: Hoffer
Publisher: PEARSON
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Chapter 9, Problem 9.54PAE
Program Plan Intro
To discuss would it impact the way of extracting and loading data into data mart if Commission field in the policies table is updated yearly to reflect changes in the annual commission.
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I understand the intentions of a database, being to streamline the data record-keeping of any organizations. And I understand the hardware needed to do such. The area I find myself the most lost in is the idea of programming the rules and structure of a database. In my head a database is a chart (or multiple charts) with fields that is used to store records. And then those records stored in one chart intertwine with other charts of course so we need to have relationships between the charts. Where I get lost is in the thought of programming a structure for the data to fit in. Are we making metaphysical locations to store data or are we just writing relationshipds between data that is stored on a plethora of different options?
I understand the purpose of a database, which is to make data record-keeping easier for any company. And I'm aware of the hardware requirements. The concept of programming the rules and structure of a database is the area in which I am most confused. A database, in my mind, is a chart (or many charts) containing fields that are used to hold records. Then, of course, those records in one chart interweave with those in other charts, necessitating the creation of chart linkages. The concept of developing a framework for the data to fit into is where I get stuck. Are we creating metaphysical venues to store data, or are we just recording relationships between data saved on a variety of platforms?
Notown Records has decided to store information about musicians who perform on its albums (as well as other company data) in a database. The company has wisely chosen to hire you as a database designer.• Each musician that records at Notown has an SSN, a name, an address, and a phone number. Poorly paid musicians often share the same address, and no address has more than one phone.• Each instrument used in songs recorded at Notown has a name (e.g., guitar, synthesizer, flute) and a musical key (e.g., C, B-flat, E-flat).• Each album recorded on the Notown label has a title, a copyright date, a format (e.g., CD or MC), and an album identifier.• Each song recorded at Notown has a title and an author.• Each musician may play several instruments, and a given instrument may be played by several musicians.• Each album has a number of songs on it, but no song may appear on more than one album.• Each song is performed by one or more musicians, and a musician may perform a number of songs.• Each…
Chapter 9 Solutions
Modern Database Management
Ch. 9 - Prob. 9.1RQCh. 9 - Prob. 9.2RQCh. 9 - Prob. 9.3RQCh. 9 - List the five major trends that necessitate data...Ch. 9 - Prob. 9.5RQCh. 9 - Prob. 9.6RQCh. 9 - Prob. 9.7RQCh. 9 - Prob. 9.8RQCh. 9 - Prob. 9.9RQCh. 9 - Prob. 9.10RQ
Ch. 9 - List four objectives of derived data.Ch. 9 - Prob. 9.12RQCh. 9 - Prob. 9.13RQCh. 9 - Explain the pros and cons of logical data marts.Ch. 9 - Prob. 9.15RQCh. 9 - What is a helper table, and why is it often used...Ch. 9 - Describe the characteristics of a surrogate key as...Ch. 9 - Prob. 9.18RQCh. 9 - What is the purpose of conformed dimensions for...Ch. 9 - Prob. 9.20RQCh. 9 - Prob. 9.21RQCh. 9 - Prob. 9.22RQCh. 9 - Prob. 9.23RQCh. 9 - Prob. 9.24RQCh. 9 - Prob. 9.25RQCh. 9 - Describe the current key trends in data...Ch. 9 - Discuss the benefits of offering data warehousing...Ch. 9 - Prob. 9.28RQCh. 9 - List six typical characteristics of reconciled...Ch. 9 - Prob. 9.30RQCh. 9 - Prob. 9.31RQCh. 9 - Prob. 9.32RQCh. 9 - Prob. 9.33RQCh. 9 - Describe some field-level and record-level data...Ch. 9 - Prob. 9.35PAECh. 9 - Prob. 9.36PAECh. 9 - Prob. 9.37PAECh. 9 - Prob. 9.38PAECh. 9 - You are to construct a star schema for Simplified...Ch. 9 - Simplified Automobile Insurance Company would like...Ch. 9 - Prob. 9.41PAECh. 9 - Prob. 9.42PAECh. 9 - Prob. 9.43PAECh. 9 - Prob. 9.45PAECh. 9 - Prob. 9.46PAECh. 9 - Prob. 9.47PAECh. 9 - Prob. 9.48PAECh. 9 - Prob. 9.49PAECh. 9 - Prob. 9.50PAECh. 9 - Prob. 9.51PAECh. 9 - Prob. 9.52PAECh. 9 - Prob. 9.53PAECh. 9 - Prob. 9.54PAE
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