Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Question
Chapter 7, Problem 1RQ
Program Plan Intro
SELECT statement:
It is used to retrieve information from the table or
SELECT * FROM table_Name;
Expert Solution & Answer
Explanation of Solution
Difference between “WHERE” and “HAVING” clause:
“WHERE” clause | “HAVING” clause |
“WHERE” clause is used limit the number of rows. | “HAVING” clause is used limit groups. |
“WHERE” clause cannot be used with aggregate functions. | “HAVING” clause in used to overcome “WHERE” clause because, “HAVING” clause uses aggregate functions. |
Syntax: SELECT column_Name(s) FROM table_Name WHERE condition; |
Syntax: SELECT column_Name(s) FROM table_Name GROUP BY column_Name HAVING condition; |
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Chapter 7 Solutions
Database Systems: Design, Implementation, & Management
Ch. 7 - Prob. 1RQCh. 7 - Explain why the following command would create an...Ch. 7 - Prob. 3RQCh. 7 - Explain why it might be more appropriate to...Ch. 7 - What is the difference between a column constraint...Ch. 7 - What are referential constraint actions?Ch. 7 - Rewrite the following WHERE clause without the use...Ch. 7 - Explain the difference between an ORDER BY clause...Ch. 7 - Explain why the following two commands produce...Ch. 7 - What is the difference between the COUNT aggregate...
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