que_078.htm

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<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title>Ocp test </title>
</head>
<body bgcolor="white" text="black" link="blue" vlink="purple" alink="red">
<p align="left" color="black" style="font-size:16pt;">
	<b>QUESTION 078	</b>
</p><hr color="#99CCFF">

<p>Examine the structure of the EMPLOYEES table: </p><table border="1" bordercolor="gray">
	<tr>
		<td align="left" width="486" bgcolor="#99CCFF">
			<p><b>EMPLOYEES  table</b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>EMPLOYEE_ID  NUMBER  NOT  NULL,  Primary  Key  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>LAST_NAME  VARCNAR2(30)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>FIRST_NAME  VARCNAR2(30)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>JOB_ID  NUMBER  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>SAL  NUMBER  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>MGR_ID  NUMBER  References  EMPLOYEE_ID  column  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>DEPARTMENT_ID  NUMBER  </b></p>
		</td>
	</tr>
</table>
<p>You need to create an index called NAME_IDX on the first name and last name fields of the EMPLOYEES table. Which SQL statement would you use to perform this task? </p><table border="1" bordercolor="gray" width="665">
	<form name="youAnsForm">
	<span style="font-size:18pt;">
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="A">  A.</b></p>
		</td>
		<td align="left" width="566">
			<p> CREATE INDEX NAME_IDX (first_name, last_name); 
			</p>
		</td>
	</tr>
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="B">  B.</b></p>
		</td>
		<td align="left" width="566">
			<p>   CREATE INDEX NAME_IDX (first_name AND last_name); 
			</p>
		</td>
	</tr>
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="C">  C.</b></p>
		</td>
		<td align="left" width="566">
			<p>   CREATE INDEX NAME_IDX <br>
			  ON (first_name, last_name); 
			</p>
		</td>
	</tr>
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="D">  D.</b></p>
		</td>
		<td align="left" width="566">
			<p>   CREATE INDEX NAME_IDX <br>
			  ON employees (first_name AND last_name); 
			</p>
		</td>
	</tr>
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="E">  E.</b></p>
		</td>
		<td align="left" width="566">
			<p>   CREATE INDEX NAME_IDX <br>
			  ON employees(first_name, last_name); 
			</p>
		</td>
	</tr>
	<tr>
		<td align="center" width="89">
			<p><b><input type="radio" name="AN" value="F">  F.</b></p>
		</td>
		<td align="left" width="566">
			<p>   CREATE INDEX NAME_IDX <br>
			  FOR employees(first_name, last_name);</b></p>
		</td>
	</tr>
	</span>
	</form>
</table>

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