Have created this query which will give the details of how many alert got triggered last month. Using Console option gives ambiguous sheet report. Checked with vendor but no proper solution.
SELECT eventtime,message FROM [dbo].[Events] where eventtype='5000' and
message not like '%<name/chosen words for removing unwanted alerts from the report>%'
and
YEAR(eventtime) = DATEPART(yyyy, DATEADD(m, -1, getdate()))
AND
MONTH(eventtime) = DATEPART(m, DATEADD(m, -1, getdate()))