I recommend using SQL::Abstract, possibly on top of DBIx::Simple. In this case, inserting the data into the DB is as simple as:

$db->insert($table, \%row);
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where %row is a hash representing the row data, with the field name as key and the value as value.

All you still have to do is extract the data from the XML and loading it into the hash (one row at a time).

If the data comes out of a web page, perhaps there's only one record per XML file? In that case, you might get along with just using XML::Simple, which does convert XML into a simple Perl data structure.

If you have the problem that the XML tagnames and the database field names don't fully agree, you can convert from one to the other using a mapping hash. For example if the XML has a tagnames (just making some names up now) "fullname" and "product-id" and the DB has the equivalent column names "name" and "product_id", you can map one to the other using

%map = ( 'fullname' => 'name', 'product-id' => 'product_id' );
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and you can do, getting the data out of %xmldata:

my %row; @row{values %map} = @xmldata{keys %map};
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after which you can do the insert.

If XML::Simple will not do you can use a module like XML::Twig (or my own XML::Parser::GlobEvents, which I wrote some 10 years ago, after the docs of the former module didn't make any sense to me) to build the data structure while parsing the XML.