Question

I have following SQL query

SELECT TOP 10000 AVG(DailyNodeAvailability.Availability) AS AVERAGE_of_Availability
FROM Nodes 
INNER JOIN DailyNodeAvailability 
    ON (Nodes.NodeID = DailyNodeAvailability.NodeID)
WHERE 
( DateTime > (GetDate()-7) )
 AND  
(
  (
  (Nodes.Caption LIKE '%server1%') OR 
  (Nodes.Caption LIKE '%server2%') OR 
  (Nodes.Caption LIKE '%server3%') 
  )
)

It’s giving me average availability report of 3 servers. But I want least availability. For example.

Server1 = 100%
Server2 = 97%
Server3 = 88%

I want SQL query result in least one which would be Server3 = 88% (Not average)

How do I modify existing query to make it work?

There was confusion so, I am attaching picture of result. Its giving me single result but in average and i don’t want average i need least result value in my result, According example.

Answer 1

SELECT MIN(AVERAGE_of_Availability)
FROM
(
SELECT AVG(DailyNodeAvailability.Availability) AS AVERAGE_of_Availability
FROM Nodes 
INNER JOIN DailyNodeAvailability 
    ON (Nodes.NodeID = DailyNodeAvailability.NodeID)
WHERE 
( DateTime > (GetDate()-7) )
 AND  
(
  (
  (Nodes.Caption LIKE '%server1%') OR 
  (Nodes.Caption LIKE '%server2%') OR 
  (Nodes.Caption LIKE '%server3%') 
  )
)
group by Nodes.Caption
) AvgAvailability

This will give you the minimum, but it will not tell for which server it is showing. To get the server name (Nodes.Caption) we have to do a bit more. As it is not in the original query so, I am not including that part, otherwise it will make it a little bit more complicated.