Database Concepts (8th Edition)
Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Chapter 1, Problem 1.39E

Explanation of Solution

Name of spreadsheet: COMPANY

Column names:

NameIndustryCodeGross SalesOfficerNameOfficerTitle
     

The above spreadsheet contains Name, IndustryCode, Gross Sales, OfficerName, and OfficerTitle.

Divide the columns into tables with single theme:

Industry details:

Industry_idNameIndustryCode
1SUN352-765
2Anime654-123

Officer details:

Officer_idOfficerNameOfficerTitle
1Ram Kumarceo
2Rajesh Project Head

Sales details:

Industry_idOfficer_idGross Sales
1123000000
2245000000
1250000000
  • Number of themes: Three
  • Name of the theme: Industry details, officer details, and Sales

Assumptions:

In the above spreadsheet, there are three themes. One of the themes is about industry which is specified through the heading of Name and IndustryCode. The other theme is about officer who is specified through the heading of OfficerName and OfficerTitle. The final theme is about sales which are specified through the heading of Gross Sales.

  • Industry – It contains Industry_id, Name and IndustryCode attributes. The Industry_id is the primary key of the Industry table.
  • Officer – It contains Officer_id, OfficerName, and OfficerTitle attributes. The Officer_id is the primary key of the Officer table.
  • Sales – It contains Industry_id, Officer_id, and Gross Sales attributes.

Name of spreadsheet: COMPANY

Column names:

NameIndustryCodeGross SalesNameOfOwner
    

The above spreadsheet contains Name, IndustryCode, Gross Sales and NameOfOwner.

Divide the columns into tables with single theme:

Industry details:

Industry_idNameIndustryCodeNameOfOwner
1SUN352-765XXX
2Anime654-123YYY

Sales:

Industry_idGross Sales
123000000
245000000
150000000
  • Number of themes: Three
  • Name of the theme: Industry details and Sales

Assumptions:

In the above spreadsheet, there are three themes. One theme is about industry which is specified through the heading of Name and IndustryCode. The other theme is about president which is specified through the heading of NameOfPresident. The final theme is about a sale which is specified with the heading of Gross Sales.

  • Industry – It contains Industry_id, Name, IndustryCode, and NameOfOwner attributes. The Industry_id is the primary key of the Industry table.
  • Sales – It contains Industry_id, and Gross Sales attributes.

Name of spreadsheet: COMPUTER

Column names:

SerialNumberMakeModelDiskTypeDiskCapacity
     

The above spreadsheet contains SerialNumber, Make, Model, DiskType and DiskCapacity...

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