exp_014.htm

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<title>Ocp test </title>
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<p><b><span style="font-size:22pt">Explaination 014: &nbsp;</span></b></p>

<span style="font-size:18pt">
	<p>
	The statement returns the employee name, salary, department ID, and maximum salary earned in the department of the employee for all employees who earn less than the maximum salary in their department. This query is example of an inline view which is the sub-query in the FROM clause of the main query. The sub-query can be a SELECT statement that utilizes joins, the GROUP BY clause, or the ORDER BY clause. <br>
	</p>

	<p>
	  Incorrect Answers <br>
	</p>

	<p>
	  A: The statement does not produce an error at line 1. <br>
	</p>

	<p>
	  B: The statement does not produce an error at line 3. <br>
	</p>

	<p>
	  C: The statement does not produce an error at line 6. <br>
	</p>

	<p>
	  D: The statement returns the employee name, salary, department ID, and maximum salary earned in the department of the employee for all EMPLOYEES, NOT DEPARTMENTS, who earn less than the maximum salary in their department. <br>
	</p>

	<p>
	  OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 161-165 <br>
	</p>

	<p>
	  Chapter 4: Subqueries
	</p>

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