Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 10.27PAE
Consider the customer table created in Figure 10-24 and populated with data as shown in Figure 10-27 Write the Hive script that will display the age-groups that exist in the data set and their average incomes.
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Database systems
In SQL
MurachCollege database.
Provide a list of all of the students, the number of courses they are taking, and the number of different instructors they have across all of their courses.
The first column should provide the last name of each student (column titled Student Last Name).
The second column should provide the number of courses that each student is taking (column titled Number of Courses).
The third column should provide the number of different instructors that each student has for all of the courses they are taking (column titled Number of Different Instructors).
No other columns should be provided in the result.
Organize the result by student last name in alphabetical order.
48
Refer to the given tables.
Salesperson Salesperson Commission Year of Department Manager
Number
Percentage
Product
Number
SALESPERSON table
Salesperson
Number
PRODUCT table
QUANTITY table
Frdig
Quantity
Which feature of the tables makes it clear that they are in second normal form?
Each non-key attribute is fully functionally dependent on the key of that table.
O The tables are completely free of data redundancy.
Each non-key attribute functions completely independently of the key of that table.
O The tables are dependent on one another in descending order.
Jh
Samples of 42 college students are considered for study and were categorized according to year level. The data set is
FreshmenFreshmenFreshmenSophomoreJuniorFreshmenSenior
SophomoreSeniorSeniorFreshmenSeniorSophomoreSophomore
JuniorSophomoreFreshmenFreshmenSophomoreSophomoreFreshmen
SeniorSophomoreSophomoreFreshmenFreshmenJuniorJunior
SophomoreJuniorSophomoreJuniorJuniorJuniorFreshmen
FreshmenSeniorJuniorFreshmenFreshmenFreshmenSophomore
Solution:ClassTallyFrequency (f)Percentage (%)
Total
Consider the scores of 50 Grade 7 students in Math.2939263520
2226363119
2026352528
2239323219
3732283320
2026353119
2531252220
4031193220
2228333919
2026373119
ScoresfPercentage
40
39
37
36
35
33
32
31
29
28
26
25
22
20
19
Total
Solution:
Chapter 10 Solutions
Modern Database Management
Ch. 10 - Prob. 10.1RQCh. 10 - Prob. 10.2RQCh. 10 - Prob. 10.3RQCh. 10 - Prob. 10.4RQCh. 10 - Prob. 10.5RQCh. 10 - What are the two main categories of technologies...Ch. 10 - Prob. 10.7RQCh. 10 - Prob. 10.8RQCh. 10 - Prob. 10.9RQCh. 10 - Prob. 10.10RQ
Ch. 10 - Prob. 10.11RQCh. 10 - Prob. 10.12RQCh. 10 - Prob. 10.13RQCh. 10 - Prob. 10.14RQCh. 10 - Prob. 10.15RQCh. 10 - Prob. 10.16RQCh. 10 - Prob. 10.17RQCh. 10 - Prob. 10.18PAECh. 10 - Prob. 10.19PAECh. 10 - Prob. 10.20PAECh. 10 - Prob. 10.21PAECh. 10 - Prob. 10.22PAECh. 10 - Prob. 10.23PAECh. 10 - Prob. 10.24PAECh. 10 - Prob. 10.25PAECh. 10 - Prob. 10.26PAECh. 10 - Consider the customer table created in Figure...
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