📄 que_160.htm
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<title>Ocp test </title>
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<b>QUESTION 160
</b></p><hr color="#99CCFF">
<p>Examine the structure of the EMPLOYEES and DEPARTMENTS tables: </p><table border="1" bordercolor="gray">
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<p><b>EMPLOYEES </b></p>
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<p><b>EMPLOYEE_ID NUMBER </b></p>
</td>
</tr>
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<td align="left" bgcolor="white">
<p><b>DEPARTMENT_ID NUMBER </b></p>
</td>
</tr>
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<td align="left" bgcolor="white">
<p><b>MANAGER_ID NUMBER </b></p>
</td>
</tr>
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<p><b>LAST_NAME VARCHAR2(25) </b></p>
</td>
</tr>
</table>
<br>
<table border="1" bordercolor="gray">
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<td align="left" width="486" bgcolor="#99CCFF">
<p><b>DEPARTMENTS </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>DEPARTMENT_ID NUMBER </b></p>
</td>
</tr>
<tr>
<td align="left" bgcolor="white">
<p><b>MANAGER_ID NUMBER </b></p>
</td>
</tr>
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<td align="left" bgcolor="white">
<p><b>DEPARTMENT_NAME VARCHAR2(35) </b></p>
</td>
</tr>
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<td align="left" bgcolor="white">
<p><b>LOCATION_ID NUMBER </b></p>
</td>
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<p>You want to create a report displaying employee last names, department names, and locations. Which query should you use to create an equi-join? </p><table border="1" bordercolor="gray" width="665">
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<p><b><input type="radio" name="AN" value="A"> A.</b></p>
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<p> SELECT last_name, department_name, location_id <br>FROM employees , departments ;
</p>
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<p><b><input type="radio" name="AN" value="B"> B.</b></p>
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<p> SELECT employees.last_name, departments.department_name, departments.location_id <br>FROM employees e, departments D <br>WHERE e.department_id =d.department_id;
</p>
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<p><b><input type="radio" name="AN" value="C"> C.</b></p>
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<p> SELECT e.last_name, d.department_name, d.location_id <br>FROM employees e, departments <br>
WHERE manager_id =manager_id;
</p>
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</tr>
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<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 e.last_name, d.department_name, d.location_id <br>FROM employees e, departments d <br>WHERE e.department_id =d.department_id;</p>
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