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<p><b><span style="font-size:22pt">Explaination 007: &nbsp;</span></b></p>


	<p>
	<span style="font-size:18pt">This answer provides correct syntax and semantics to show the maximum salary paid in each job category of each department. <br>
	</span></p>

	<p>
	  <span style="font-size:18pt">Incorrect Answers <br>
	</span></p>

	<p>
	  <span style="font-size:18pt">A: This query will not return any row because condition SALARY &gt; MAX(SALARY) is 	  FALSE. <br>
	</span></p>

	<p>
	  <span style="font-size:18pt">C: This query will return error because you cannot show maximum salary with DEPT_ID and JOB_CAT without grouping by these columns. <br>
	</span></p>

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	  <span style="font-size:18pt">D: The GROUP BY clause is missing JOB_ID column. <br>
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	<p>
	  <span style="font-size:18pt">E: You don't need to group results of query by SALARY in the GROUP BY column. <br>
	</span></p>

	<p>
	  <span style="font-size:18pt">OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 356-365 <br>
	</span></p>

	<p>
	  <span style="font-size:18pt">Chapter 8: User Access Control in Oracle
	</span></p>

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