Removing interfaces in a down state that are not used.

--This script is intended to track down all network interfaces that meet the following criteria:

--Have a status of 'Down'.

--And have not sent or received ANY data for the past 12 months.

--The script then deletes the interfaces it finds from the 'interfaces' table using the interfaceid as the search term.

declare @Temporary_Holder TABLE (Number INT)

--Declares temporary variable to hold the findings of the script.

insert into @Temporary_Holder

--Specifies that all findings of the script will be temporarily stored in @Temporary_Holder

select Interfaces.InterfaceID AS InterfaceID

FROM

(Nodes INNER JOIN Interfaces ON (Nodes.NodeID = Interfaces.NodeID))  INNER JOIN InterfaceTraffic ON (Interfaces.InterfaceID = InterfaceTraffic.InterfaceID AND InterfaceTraffic.NodeID = Nodes.NodeID)

WHERE

( DateTime BETWEEN 41707 AND 42073 )

AND 

(

  ((NullIf(In_TotalBytes,-2)+NullIf(Out_TotalBytes,-2)) = 0) AND

  (Interfaces.Status = '2')

)

GROUP BY

Interfaces.InterfaceID

--The above section finds all interfaces in a 'Down' state where no data has been sent or received for the last 12 months.

--It also groups the findings by interfaceID for easier reading/processing.

select * from interfaces where interfaces.interfaceid in (select * from @Temporary_Holder)

--Lists the findings of the script. Uncomment as required.

--delete from interfaces where interfaces.interfaceid in (select * from @Temporary_Holder)

--Deletes the findings of the script. Uncomment as required.