March 13, 2013 at 10:32 am
I am trying to create an update trigger that updates isactive field depending on different criteria.
If DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then IsActive is true.
If DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then IsActive is false.
Right now I have this as two separate updates, but that makes the trigger recursive. Can I combine these using CASE statement?
March 13, 2013 at 10:42 am
Erin-489205 (3/13/2013)
I am trying to create an update trigger that updates isactive field depending on different criteria.If DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then IsActive is true.
If DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then IsActive is false.
Right now I have this as two separate updates, but that makes the trigger recursive. Can I combine these using CASE statement?
Talk about sparse on details....
This might be close but without any more details it is hard to say.
update table
set IsActive
case
when DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then 'true'
when DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then 'false'
else NULL
end
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March 13, 2013 at 8:35 pm
Sean Lange (3/13/2013)
Erin-489205 (3/13/2013)
I am trying to create an update trigger that updates isactive field depending on different criteria.If DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then IsActive is true.
If DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then IsActive is false.
Right now I have this as two separate updates, but that makes the trigger recursive. Can I combine these using CASE statement?
Talk about sparse on details....
This might be close but without any more details it is hard to say.
update table
set IsActive
case
when DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then 'true'
when DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then 'false'
else NULL
end
If this is in a trigger, shouldn't the solution be something like this (to avoid recursion)?
update INSERTED
set IsActive
case
when DateField1 is >= GETDATE() OR DateField2 >= GETDATE() AND Extension =1 then 'true'
when DateField1 is < GETDATE() AND DateField2 < GETDATE() OR DateField2 IS NULL then 'false'
else NULL
end
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INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
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