HOw to get an Alert based on a Query

Question

I currently have a maintenance plan in place that does a backup, re-indexing, etc..  If a task fails, it sends me an email alert.  I would like to add a "T-SQL Statement Task" that will execute a query and send me an email alert based
on the results of the query.
For example:   Select Cast(case when count(inventory.items) > 1000 then 1 else 0 End as bit) as SendAlert from Inventory
The maintenance plan's alert function constraint seems to be triggered whether the Query executed successfully or not RATHER THAN from the Query Result.
Can I accomplish what I want from within a maintenance plan or is there some other way to do this? 
Thank You.
Jack

Answer 1

I would create a stored procedure using  the following t-sql code:
Create Procedure [dbo].[GetInventoryAlert]
as
Begin
Set nocount on
declare @body varchar(max)
set @body = cast( (
select td = SendAlert + '</td><td>'
from (
select SendAlert = Cast(case when count(inventory.items) > 1000 then 1 else null End)
from Inventory) as d
for xml path( 'tr' ), type ) as varchar(max) )
If Len(Rtrim(@body))>0
Begin
set @body = '<table cellpadding="2" cellspacing="2" border="1">'
+ replace( replace( @body, '&lt;', '<' ), '&gt;', '>' )
+ '</table>'
Set @body='****BODY HEADING OPTIONAL****<br/><br/>'+@body
exec msdb.dbo.sp_send_dbmail @profile_name='MAIL PROFILE',
@from_address='FROM EMAIL ADDRESS',
@recipients='COMMA SEPARATED RECIPIENTS',
@subject='SUBJECT OF THE EMAIL',
@body=@body,
@body_format='HTML',
@attach_query_result_as_file=0,
@query_result_header = 0
End
End
Also the above can be embedded as t-SQL in  a maintenance plan tasks control.
I would add an Execute T-SQL Statement Task. Then branch the task where applicable.