📄 que_117.htm
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<title>Ocp test </title>
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<b>QUESTION 117
</b></p><hr color="#99CCFF">
<p>Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables: </p><table border="1" bordercolor="gray">
<tr>
<td align="left" width="486" bgcolor="#99CCFF">
<p><b>EMPLOYEES </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>EMPLOYEE_ID NUMBER Primary Key </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>FIRST_NAME VARCHAR2 (25) </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>LAST_NAME VARCHAR2 (25) </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>HIRE_DATE DATE </b></p>
</td>
</tr>
</table>
<BR>
<table border="1" bordercolor="gray">
<tr>
<td align="left" width="486" bgcolor="#99CCFF">
<p><b>NEW EMPLOYEES </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>EMPLOYEE_ID NUMBER Primary Key </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>NAME VARCHAR2 (60) </b></p>
</td>
</tr>
</table>
<p>Which DELETE statement is valid? </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> DELETE FROM employees <br>
WHERE employee_id = (SELECT employee_id <br>
FROM employees);
</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> DELETE * FROM employees <br>
WHERE employee_id = (SELECT employee_id <br>
FROM new_employees);
</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> DELETE FROM employees <br>
WHERE employee_id IN (SELECT employee_id <br>
FROM new_employees <br>
WHERE name = 'Carrey');
</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> DELETE * FROM employees <br>
WHERE employee_id IN (SELECT employee_id <br>
FROM new_employees <br>
WHERE last_name = 'Carrey');</p>
</td>
</tr>
</span>
</form>
</table>
<p> </p>
</body>
</html>
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