How to validate a doc.xml with XSD schema in schema.xsd.
Original XML data.
Running "validateXML.bat countries.xml" gives error.
Add DTD to the XML doc of countries.
Running "validateXML.bat countries.xm"l returns 0.
Original course data before adding DTD.
Add DTD to specify the data structure.
Original data, before adding DTD.
Add DTD to XML doc for data to constrain the data structure.