Relational databases - Study guides, Class notes & Summaries
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Introduction to Relational Databases Challenge 2.1 (WGU)
- Exam (elaborations) • 26 pages • 2023
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Which result set requires a JOIN? 
 a.) 
 Showing all track names with genre names 
 b.) 
 Showing all track names with genre IDs 
 c.) 
 Showing all genre names with genre IDs 
 d.) 
 Showing all track names with both genre ID and track ID 
Which result set requires a JOIN? 
 a.) 
 Showing all invoice totals with both customer ID and invoice ID 
 b.) 
 Showing all customer names with customer IDs 
 c.) 
 Showing all invoice totals with customer last names 
 d.) 
 Showing all inv...
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WGU SOPHIA Relational Databases Milestone 4 All Possible Questions and Answers 2024 with complete solutions
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WGU SOPHIA Relational Databases Milestone 4 All Possible Questions and Answers 2024 with complete solutions 
 
his is a review of questions that could potentially be on the milestone 4 test. I submitted in word document so you are able to use the CTRL+f keys to find questions easier as there are quite a few
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Sophia Introduction to Relational Databases Milestone_3.
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Western Governors University 
WGU CS1011 
Sophia_Introduction_to_Relational_Databases_Milestone_3
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Introduction to Relational Databases CS1011 (SOPH-0047) Sophia Milestone 3 UNIT 3
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Introduction to Relational Databases CS1011 (SOPH-0047) Sophia Milestone 3 UNIT 3
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WGU CS1011 Sophia Introduction to Relational Databases Milestone 2 Retake Questions and Answers Score 20/25.
- Exam (elaborations) • 37 pages • 2023
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WGU CS1011 Sophia Introduction to Relational Databases Milestone 2 Retake Questions and Answers Score 20/25. 
20/25 that's 80% RETAKE 
 20 questions were answered correctly. 
4 questions were answered incorrectly. 
1 question was skipped. These were marked incorrect. 
In each milestone, you may want or need to use the database 
and query tool to answer some of the questions. We suggest you 
open the tool in another browser tab while you are working on 
this assessment. 

Which of the fol...
And that's how you make extra money
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WGU CS1011 Sophia Introduction to Relational Databases Milestone 1 Retake Questions and Answers (Score 33/36) Latest.
- Exam (elaborations) • 41 pages • 2023
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WGU CS1011 Sophia Introduction to Relational Databases Milestone 1 Retake Questions and Answers (Score 33/36) Latest. 
33/36 that's 92% RETAKE 
 33 questions were answered correctly. 
3 questions were answered incorrectly. 
In each milestone, you may want or need to use the database 
and query tool to answer some of the questions. We suggest you 
open the tool in another browser tab while you are working on 
this assessment. 

Identify the correctly constructed ALTER TABLE statement to 
...
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Introduction to Relational Databases Challenge 1.2 (WGU)
- Exam (elaborations) • 16 pages • 2023
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1.2 SINGLE TABLE CONSTRUCTION 
The following CREATE TABLE statement creates a table called 'company' that 
consists of the company_id as the primary key, the company_name, and the 
address. 
CREATE TABLE company( 
company_id INT PRIMARY KEY 
company_name VARCHAR (100), 
address VARCHAR (100) 
); 
Identify the line of code that would generate an error in this CREATE TABLE 
statement. 
 a.) 
 2 
 b.) 
 4 
 c.) 
 1 
 d.) 
 3 
 
The following CREATE TABLE statement creates a table called ...
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Introduction to Relational Databases Challenge 1.3 (WGU)
- Exam (elaborations) • 16 pages • 2023
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Identify the SQL command that uses an aggregate function that could be used to 
find the lowest total in the invoice table. 
 a.) 
 SELECT lowest(total) FROM invoice; 
 b.) 
 SELECT total(min) FROM invoice; 
 c.) 
 SELECT min total FROM invoice; 
 d.) 
 SELECT min(total) FROM invoice; 
Identify the SQL command that uses an aggregate function that could be used to 
find the average total in the invoice table. 
 a.) 
 SELECT avg(total) from invoice; 
 b.) 
 SELECT average total FROM in...
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WGU Data Management - Foundations - D426 with 100% correct answers.
- Exam (elaborations) • 12 pages • 2024
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Which requirement within large, complex databases ensures users have limited access to the database? 
 
Recovery 
Performance 
Authorization 
Confidentiality 
Authorization 
 
 
Which design type specifies database requirements without regard to a specific database system? 
 
Physical design 
Conceptual design 
Logical design 
Abstract design 
Conceptual design 
 
 
3. What characterizes the rules of relational databases? 
 
-They are logical constraints that ensure the data is valid. 
-They are...
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Introduction to Relational Databases Challenge 1.4 (WGU)
- Exam (elaborations) • 16 pages • 2023
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Which of the following statement(s) would successfully delete the invoice_id 353 
from the invoice table? 
 a.) 
 DELETE FROM invoice_line WHERE invoice_id = 353; 
 DELETE FROM invoice WHERE invoice_id = 353; 
 b.) 
 DELETE FROM invoice WHERE invoice_id = 353; 
 c.) 
 DELETE FROM invoice WHERE invoice_id = 353; 
 DELETE FROM invoice_line WHERE invoice_id = 353; 
 d.) 
 DELETE FROM invoice_line WHERE invoice_id = 353 
Which of the following statement(s) would successfully delete the inv...
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