Variante von WQL im Rahmen des Microsoft System Management Server (SMS)
"Extended WQL includes a much broader range of operations than WQL. The following list shows the SELECT clauses that Extended WQL supports:
DISTINCT
COUNT
JOIN
WHERE
SUBSTRING
ORDER BY
UPPER, LOWER, and DATEPART functions"
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/smssdk03/hh/sms/refsms10_5545.asp