Question

I am trying to update my SQL DB when the the date has expired (i.e is less than now)
I have this lovely bit of SQL code

Update Notifications 
SET Active = 'N' 
where CAST(SetDate AS DATE) <= CAST('2012-08-23 11:19:00 +0000' AS DATE)

But it updates all the records (even if the date is not less than now)

I have also tried

Update Notifications 
SET Active = 'N' 
where CAST(SetDate AS DATE) < CAST('2012-08-23 11:19:00 +0000' AS DATE)

But this dosent affect any rows.

I guess I have something a little confused??

Any help???

Thanks

Answer 1

I cannot see anything odd about the code, except for this line:

CAST('2012-08-23 11:19:00 +0000' AS DATE)

If you are using CAST() to change it to the date, then there is no need to pass in the time portion of the value.

You did not provide the full table schema but one thing to consider is using a bit field for the Y/N values.

Here is a SQL Fiddle with the code working

Update Notifications 
SET Active = 'N' 
where CAST(SetDate AS DATE) <= CAST('2012-08-23' AS DATE)