Sample QoE Database Queries

Topic Last Modified: 2011-08-01

This section contains sample queries for the Quality of Experience (QoE) database.

Use the following example to get the jitter and packet loss average for all audio streams.

select avg(cast(JitterInterArrival as bigint)) as JitterAvg, avg(PacketLossRate) as PacketLossRateAvg from AudioStream

Use the following example to find the total numbers of conferences that used Meeting Console.

select avg(ConversationalMOS)
from Session s
inner join MediaLine m
on s.ConferenceDateTime = m.ConferenceDateTime
   and s.SessionSeq = m.SessionSeq
   and m.MediaLineLabel = 0 -- audio media line
inner join UserAgent uaCaller
   on s.CallerUserAgent = uaCaller.UserAgentKey
      and uaCaller.UAType = 4 - Lync
inner join UserAgent uaCallee
   on s.CalleeUserAgent = uaCallee.UserAgentKey
      and uaCallee.UAType = 4 -- Lync

Use the following example to get ConversstionalMOS, SendingMOS and ListendingMOS per capture device.

select t.DeviceName as Device, count(*) as SampleNum, avg(ConversationalMOS) as ConversationalMOS, avg(SendListenMOS) SendingMOS, avg(RecvListenMOS) as ListendingMOS
from
(
   select d.DeviceName, m.ConferenceDateTime, m.SessionSeq, a.StreamID, m.ConversationalMOS,a.SendListenMOS, a.RecvListenMOS
   from MediaLine m
   inner join AudioStream a
   on m.ConferenceDateTime = a.ConferenceDateTime
      and m.SessionSeq = a.SessionSeq
      and m.MediaLineLabel = 0
   inner join Device d
      on m.CallerCaptureDev = d.DeviceKey
         and d.DeviceType = 1
   union
   select d.DeviceName, m.ConferenceDateTime, m.SessionSeq, a.StreamID, m.ConversationalMOS,a.SendListenMOS, a.RecvListenMOS
   from MediaLine m
   inner join AudioStream a
   on m.ConferenceDateTime = a.ConferenceDateTime
      and m.SessionSeq = a.SessionSeq
      and m.MediaLineLabel = 0
   inner join Device d
      on m.CalleeCaptureDev = d.DeviceKey
         and d.DeviceType = 1
)as t
group by t.DeviceName
order by SampleNum desc