que_152.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 152	
</b></p><hr color="#99CCFF">

<p>Examine the description of the CUSTOMERS table: </p><table border="1" bordercolor="gray">
	<tr>
		<td align="left" width="486" bgcolor="#99CCFF">
			<p><b>CUSTOMERS  table:  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>CUSTOMER_ID  NUMBER(4)  NOT  NULL  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>CUSTOMER_NAME  VARCHAR2(100)  NOT  NULL  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>STREET_ADDRESS  VARCHAR2(150)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>CITY_ADDRESS  VARCHAR2(50)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>STATE_ADDRESS  VARCHAR2(50)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>PROVINCE_ADDRESS  VARCHAR2(50)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>COUNTRY_ADDRESS  VARCHAR2(50)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>POSTAL_CODE  VARCHAR2(12)  </b></p>
		</td>
	</tr>
	<tr>
		<td align="left" bgcolor="white">
			<p><b>CUSTOMER_PHONE  VARCHAR2(20)  </b></p>
		</td>
	</tr>
</table>
<p>The CUSTOMER_ID column is the primary key for the table. 
Which statement returns the city address and the number of customers in the cities Los Angeles or San Francisco? </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> SELECT city_address, COUNT(*) <br>FROM customers <br>WHERE city_address IN ('Los 
			  Angeles', 'San Francisco'); 
			</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>   SELECT city_address, COUNT(*) <br>FROM customers <br>WHERE city_address IN ('Los 
			  Angeles', 'San Francisco')<br> GROUP BY city_address; 
			</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>   SELECT city_address, COUNT(customer_id) <br>FROM customers <br>WHERE city_address IN 
			  ('Los Angeles', 'San Francisco')<br> GROUP BY city_address, customer_id; 
			</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>   SELECT city_address, COUNT(customer_id) <br>FROM customers <br>GROUP BY city_address 
			  IN ('Los Angeles', 'San Francisco');</p>
		</td>
	</tr>
	</span>
	</form>
</table>

</body>
</html>

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