Create Virtual Field in ARCHIBUS
Virtual fields are fields that do not represent data but, rather, represent some manipulation of the data made by the SQL engine.
In DataSource:
<field table="wr" name="em_name" dataType="text">
<title>Tenant Name</title>
<sql dialect="generic">(select name_last${sql.concat}', '${sql.concat}name_first from em where em.em_id = wr.em_id)</sql>
</field>
In Panel:
<field table="wr" name="em_name" dataType="text"/>