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<p><b><span style="font-size:22pt">Explaination 155: &nbsp;</span></b></p>

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	<p>
	converting data type into characters. <br>
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	  Incorrect answer : <br>
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	<p>
	  A does not serve TO_CHAR function <br>
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	  B does not serve TO_CHAR function <br>
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	  D does not serve TO_CHAR function <br>
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	  F does not serve TO_CHAR function <br>
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	  Refer : Introduction to Oracle9i : SQL, Oracle University Study Guide, 3-31
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