Set flag in DB if the date is 5 days in the past

Question

I've written some code using SQL that checks today's date and compares is to an entry in the database, which I have called EndDate.  If the EndDate is within 60 days an email will be generated. If data in the database is 60 days or more in the future
it returns the data from the query.
Here is the code:
Use LOGONs
Select DateAdd(d, DateDiff(d, 0, EndDate), 0) As KeyedDate, Service, Manufactureer, [AccountNumber], GETDATE() as TodayTime
From ServiceExpiryMAtrix
where DATEDIFF(d, GETDATE(), EndDate) < 60
I have created another column in the database called expired, that I'd like to update with either yes or no if the Enddate field is over 5 days old.  The idea behind this is to control whether emails are continued to be sent once the EndDate date has
passed.
I have seen that this should be done in the select query but being new to SQL I thought I'd ask the question...
James
Alter De Ruine

Answer 1

This way you don't have to update any column every day.
Each time you select your table it'll give you the correct value.
If you want to stick with updating just do this:
UPDATE LOGONs SET Expired = case when datediff(day,getdate(),[EndDate])>(5) then 'yes' else 'no'  end
WHERE isnull(Expired,'') <> case when datediff(day,getdate(),[EndDate])>(5) then 'yes' else 'no'  end
or
UPDATE LOGONs SET Expired = case when datediff(day,getdate(),[EndDate])>(5) then 'yes' else 'no'  end
WHERE isnull(Expired,'no') = 'no'
Then you can set the default value for your column to 'no'  and only update to 'yes'....
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