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<p><b><span style="font-size:22pt">Explaination 091: &nbsp;</span></b></p>

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	HAVING clause is used to weed out unwanted data once the data is grouped using the GROUP BY statement. <br>
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	  Incorrect Answers <br>
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	  A: WHERE clause cannot be used for this purpose. <br>
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	  C: There is no RESTRICT command in Oracle. <br>
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	  D: GROUP BY cannot be used itself to exclude group results. <br>
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	  E: ORDER BY clause may be used only to sort final results, not to exclude group results. <br>
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	  OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 133-134 <br>
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	<p>
	  Chapter 3: Advanced Data Selection in Oracle
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