📄 que_120.htm
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<title>Ocp test </title>
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<b>QUESTION 120
</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 MERGE statement is valid? </p><table border="1" bordercolor="gray" width="665">
<form name="youAnsForm">
<span style="font-size:18pt;">
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<td align="center" width="89">
<p><b><input type="radio" name="AN" value="A"> A.</b></p>
</td>
<td align="left" width="566">
<p> MERGE INTO new_employees c <br>USING employees e ON (c.employee_id = e.employee_id) <br>WHEN MATCHED THEN <br>
UPDATE SET c.name = e.first_name ||','||
e.last_name <br>WHEN NOT MATCHED THEN <br> INSERT VALUES (e.employee_id, <br>
e.first_name ||','||e.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> MERGE new_employees c <br>USING employees e ON (c.employee_id = e.employee_id) <br>
WHEN EXISTS THEN <br> UPDATE SET c.name = e.first_name ||','|| e.last_name <br>WHEN NOT
MATCHED THEN <br> INSERT VALUES (e.employee_id, <br>
e.first_name ||','||e.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> MERGE INTO new_employees c <br>USING employees e ON (c.employee_id =
e.employee_id) <br>WHEN EXISTS THEN <br> UPDATE SET c.name = e.first_name ||','||
e.last_name WHEN NOT MATCHED THEN <br> INSERT VALUES(e.employee_id, <br>
e.first_name ||', '||e.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> MERGE new_employees c <br>FROM employees e ON (c.employee_id = e.employee_id) <br>
WHEN MATCHED THEN <br> UPDATE SET c.name = e.first_name ||','|| e.last_name WHEN
NOT MATCHED THEN <br> INSERT INTO new_employees <br>
VALUES (e.employee_id,
<br> e.first_name ||', '||e.last_name);</p>
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</span>
</form>
</table>
<p> </p>
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