SQL Ordna efter på flera kolumner

Använd analytiska funktioner:

SELECT *
FROM(
    SELECT 
        VendorName, 
        IncidentID, 
        IncidentStatus, 
        IncidentDate, 
        MAX(IncidentDate) OVER (PARTITION BY VendorName) maxDate
    FROM yourTable
) t
ORDER BY t.maxDate DESC, t.VendorName ASC, t.IncidentDate DESC

Se:http://docs.oracle.com/javadb/ 10.8.2.2/ref/rrefsqlj13658.html http://docs.oracle.com/cd/E11882_01 /server.112/e10592/functions003.htm http://docs.oracle.com/cd/E11882_01 /server.112/e26088/functions004.htm