Given the file structure shown in Figure P1.1, answer Problems 1-4. Figure 1: The File Structure for Problems 1-4 PROJECT CODE PROJECT MANAGER MANAGER PHONE 21-52 25-2D 25-5A 25-9T 27-40 29-2D MANAGER ADDRESS 3334 Lee Rd., Gainesville, FL 37123 218 Clark Blvd, Nashville, TN 36362 124 River Dr Franklin, TN 29185 3334 Lee Rd. Gainesville, FL. 37123 124 River Dr., Franklin, TN 29185 3334 Lee Rd., Gainesville, FL 37123 216 Morton Rd., Stetson, FL 30o155 PROJECT BID PRICE 16833460.00 12500000.00 $2512420.00 21563234.00 10314545.00 Holly B Parker Jene D. Grant Gecrge F Dorts Holly B. Parker George F. Dorts Holly B. Parker William K. Mor 904-338-3416 615-698-8909 615-227-1245 904-338-3416 615-227-1245 904-338-3416 25559999 00 31-7P 904-445-2719 56850000.00 1. How many records does the file contain? How many fields are there per record? There are total of six records and five fields per records. 2. What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? Since the data is multivalued in the form of address it is hard to separate city from the whole address. To solve this problem the data should be single valued which means each field should have only one data. So, we need to make one separate file to store just the city name. 3. If you wanted to produce a listing of the file contents by last name, area code, city, state, or zip code, how would you alter the file structure? The name should be separated as first name and last name and the address field should be separated as area code, city and state. 4. What data redundancies do you detect? How could those redundancies lead to anomalies?
Given the file structure shown in Figure P1.1, answer Problems 1-4. Figure 1: The File Structure for Problems 1-4 PROJECT CODE PROJECT MANAGER MANAGER PHONE 21-52 25-2D 25-5A 25-9T 27-40 29-2D MANAGER ADDRESS 3334 Lee Rd., Gainesville, FL 37123 218 Clark Blvd, Nashville, TN 36362 124 River Dr Franklin, TN 29185 3334 Lee Rd. Gainesville, FL. 37123 124 River Dr., Franklin, TN 29185 3334 Lee Rd., Gainesville, FL 37123 216 Morton Rd., Stetson, FL 30o155 PROJECT BID PRICE 16833460.00 12500000.00 $2512420.00 21563234.00 10314545.00 Holly B Parker Jene D. Grant Gecrge F Dorts Holly B. Parker George F. Dorts Holly B. Parker William K. Mor 904-338-3416 615-698-8909 615-227-1245 904-338-3416 615-227-1245 904-338-3416 25559999 00 31-7P 904-445-2719 56850000.00 1. How many records does the file contain? How many fields are there per record? There are total of six records and five fields per records. 2. What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? Since the data is multivalued in the form of address it is hard to separate city from the whole address. To solve this problem the data should be single valued which means each field should have only one data. So, we need to make one separate file to store just the city name. 3. If you wanted to produce a listing of the file contents by last name, area code, city, state, or zip code, how would you alter the file structure? The name should be separated as first name and last name and the address field should be separated as area code, city and state. 4. What data redundancies do you detect? How could those redundancies lead to anomalies?
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
Related questions
Question
Correct me if I’m wrong and please explain.
Transcribed Image Text:Given the file structure shown in Figure P1.1, answer Problems 1-4. Figure
1: The File Structure for Problems 1-4
21-52
25-2D
25-5A
25-9T
27-40
29-2D
31-7P
PROJECT CODE PROJECT MANACER MANAGER PHONE
Holly B Parker
Jene D. Granit
George F Dorts
Holly B. Parker
George F Dorts
Holly B. Parker
iliam K. Moor
MANAGER ADDRESS
3334 Lee Rd, Gainesville, FL 37123
218 Clark Blvd, Nashville, TN 36362
124 River Dr., Franklin, TN 29185
3334 Lee Rd, Gainesville, FL. 37123
124 River Dr., Franklin, TN 29185
3334 Lee Rd., Gainesville, FL 37123
216 Morton Rd, Stetson, FL 30155
PROJECT BID PRICE
16833460.00
12500000,00
32512420.00
21563234.00
10314545 00
25559999 00
56850000.00
904-338-3416
615-698-8909
615-227-1245
904-338-3416
615-227-1245
904-338-3416
904-445-2719
1. How many records does the file contain? How many fields are there per record?
There are total of six records and five fields per records.
2. What problem would you encounter if you wanted to produce a listing by city? How would
you solve this problem by altering the file structure?
Since the data is multivalued in the form of address it is hard to separate city from the whole
address.
To solve this problem the data should be single valued which means each field should have only
one data. So, we need to make one separate file to store just the city name.
3. If you wanted to produce a listing of the file contents by last name, area code, city, state, or
zip code, how would you alter the file structure?
The name should be separated as first name and last name and the address field should be
separated as area code, city and state.
4. What data redundancies do you detect? How could those redundancies lead to anomalies?
FIGURE P1.5 The File Structure
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