Answer:
Following are the code to the given question:
Explanation:
<html>
<body>
<p align="center" >VOCATIONAL SUBJECT</p>
<table align="center" border="2">
<tr>
<td rowspan="2">YEAR</td>
<td colspan="5">Vocational course</td>
</tr>
<tr>
<td rowspan="1">IT</td>
<td rowspan="1">CS</td>
<td rowspan="1">EL</td>
</tr>
<tr>
<td colspan="1">2016</td>
<td colspan="1">66</td>
<td colspan="1">68</td>
<td colspan="1">60</td>
</tr>
<tr>
<td colspan="1">2017</td>
<td colspan="1">77</td>
<td colspan="1">78</td>
<td colspan="1">80</td>
</tr>
<tr>
<td colspan="1">2018</td>
<td colspan="1">60</td>
<td colspan="1">67</td>
<td colspan="1">70</td>
</tr>
</table>
</body>
</html>
Answer:
Referencial Integrity Contraint
Explanation:
The referential integrity constraint states that the customer ID i.e (CustID) in the Order table must match a valid CustID in the Customer table. Most relational databases have declarative referential integrity. That is to say, when the tables are created the referential integrity constraints are set up so as to maintain the quality of information.
Answer:
Social engineering is a process of manipulating people into breaking normal security procedures or divulging confidential information.
Explanation:
I believe that the answer you are looking for is a Web Server.
A cross tab query is good in data assessment
in any underlying tables.
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