A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Chapter 3, Problem 5RQ
Explanation of Solution
a)
COMMISSIONRATE:
It is a valid option in Oracle...
Explanation of Solution
b)
POSTAL_CODE_5CHAR:
It is a valid option in Oracle...
Explanation of Solution
c)
SHIP TO ADDRESS:
It is an invalid option in Oracle...
Explanation of Solution
d)
INVOICE-NUMBER:
It is an invalid option in Oracle...
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Which of the following is true? (refer to the tables in the JustLee Books database)a. If you truncate a table, you can’t add new data to the table.b. If you change the default value of an existing column, all existing rows containing a NULL value in the same column are set to the new DEFAULT value.c. If you delete a column from a table, you can’t add a column to the table with the same name as the previously deleted column.d. If you add a column to an existing table, it’s always added as the last column of the table.
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Instructions
Write SQL queries to solve the following problems. We will be using the “university” database. All queries should involve only the instructor table. After you are done, save your work as .sql file and turn in the .sql file into Moodle for grading.
Write a SQL statement to display all columns using the SQL asterisk (*) wild-card character.
Write a SQL statement to display ID and name of the instructors (ID appears first).
Write a SQL statement to display department names.
Write a SQL statement to display unique department names. (expect 7 rows returned)
Write a SQL statement to display all info about instructors having a salary greater than 75000. (expect 6 rows returned)
Write a SQL statement to display department name, instructor name, and salary for instructors that have a salary less than 70000. Sort the results in ascending order by department name. (expect 4 rows returned)
Write a SQL statement to display name, department name, and salary for instructors that have a…
Chapter 3 Solutions
A Guide to SQL
Ch. 3 - Prob. 1RQCh. 3 - How do you delete a table using SQL?Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Use SQL to complete the following exercises....Ch. 3 - Prob. 2TDCh. 3 - Prob. 3TDCh. 3 - Prob. 4TDCh. 3 - Prob. 5TDCh. 3 - Prob. 6TDCh. 3 - Prob. 7TDCh. 3 - Prob. 1CATCh. 3 - Add the following row to the ADVENTURE_TRIP table:...Ch. 3 - Prob. 3CATCh. 3 - Prob. 4CATCh. 3 - Prob. 5CATCh. 3 - Prob. 6CATCh. 3 - Review the data for the TRIP table in Figure 1-5...Ch. 3 - Colonial Adventure Tours would like to increase...Ch. 3 - Prob. 1SCGCh. 3 - Add the following record to the VACATION_UNIT...Ch. 3 - Delete the VACATION_UNIT table.Ch. 3 - Prob. 4SCGCh. 3 - Prob. 5SCGCh. 3 - Prob. 6SCGCh. 3 - The SERVICE_REQUEST table uses the CHAR data type...
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A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
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ISBN:9781111527273
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