Create an internal DTD wihin the XML file.
<?xml version="1.0" encoding="UTF-8"?>
<!--
UTAS wants to store basic employee data of every employee in various branches.All the branches will make there own XML data files for this purpose.As an XML expert you have to make a DTD for this XML data which all branches will follow when developing their XML data files.The XML files will be validated against this DTD. The DTD should enforce the following for every XML file:
1.Create an internal DTD wihin the XML file.
2.There must be atleast one employee record in the xml file.
3.Every employee will have exactly one employee id,exactly one employee name, exactly one salary and one or more roles.
4.The element salary will have a mandatory attribute "currency" indicating the currency in which salary is given.
5.create atleast one xml record with data of your choice.
-->
<!DOCTYPE employees
[
<!ELEMENT employees (employee)+>
<!ELEMENT employee (emp_id,emp_name,salary,role+)>
<!ELEMENT empid (#PCDATA)>
<!ELEMENT emp_name (#PCDATA)>
<!ELEMENT salary (#PCDATA)>
<!ATTLIST salary currency CDATA #REQUIRED>
<!ELEMENT role (#PCDATA)>
]>
<employees>
<employee> /*0.2 marks*/
<emp_id>1</emp_id>
<emp_name>Deeba</emp_name>
<salary currency="OMR">1000</salary>
<role>Lecturer</role>
<role>Advisor</role>
</employee>
</employees>
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