@prefix rr: <http://www.w3.org/ns/r2rml#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ex: <http://example.com/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rml: <http://semweb.mmlab.be/ns/rml#> .
@prefix ql: <http://semweb.mmlab.be/ns/ql#> .
@prefix d2rq: <http://www.wiwiss.fu-berlin.de/suhl/bizer/D2RQ/0.1#> .

@base <http://example.com/base/> .

<TriplesMap1>
  a rr:TriplesMap;

  rml:logicalSource [
     rml:source <#DB_source>;
     rr:sqlVersion rr:SQL2008;
     rml:query """
        SELECT ID, FirstName, LastName
        FROM Employee
        WHERE ID < 30
     """ ;
     rml:referenceFormulation ql:CSV
  ];

  rr:subjectMap [ rml:reference "FirstName" ];

  rr:predicateObjectMap [
    rr:predicate foaf:name;
    rr:objectMap [
      rml:reference "FirstName"
    ]
  ] .

<#DB_source> a d2rq:Database;
  d2rq:jdbcDSN "CONNECTIONDSN";
  d2rq:jdbcDriver "com.mysql.cj.jdbc.Driver";
  d2rq:username "root";
  d2rq:password "" .