exp_061.htm

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<p><b><span style="font-size:22pt">Explaination 061: &nbsp;</span></b></p>

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	<p>
	These statements provide correct syntax and semantics to show the number of customers. <br>
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	<p>
	  Function COUNT() can be used with substitution symbol of all columns "*" or just with one column name. Last query will be processed a little bit faster. <br>
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	<p>
	  Incorrect Answers <br>
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	<p>
	  A: There is no TOTAL() function in Oracle. <br>
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	<p>
	  C: There is no TOTAL() function in Oracle. <br>
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	  E: You cannot table name as a parameter of COUNT() function. <br>
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	  F: There is no TOTAL() function in Oracle. <br>
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	<p>
	  OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 123-125 <br>
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	<p>
	  Chapter 3: Advanced Data Selection in Oracle
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