Importing from an XML source 

If you have to import data from an XML source, APOC has your back again. Valid XML sources have a main advantage to already have been validated against an XSD schema (or a DTD).

Let's import some countries again, but this time by continent. Here is the XML, it is hand-written and voluntarily short, so do not feel offensed if you do not find your country in this list:

<?xml version="1.0"?>
<earth>
 <continent name="Africa">
    <country name="Morocco" money="Dinar"/>
 </continent>
 <continent name="Europe">
    <country name="France" money="Euro"/>
    <country name="Germany" money="Euro"/>
 </continent>
 <continent name="Asia">
   <country name="China" money="Yuan"/>
   <country name="Japan" money="Yen"/>
 </continent>
</earth>

There are countries sharing a continent, and others sharing money. As usual, constraint creation takes place before importing:

CREATE CONSTRAINT ON (c:Continent...