What if you need roll-ups on a lookup relationship?

If <strong id=”ext-gen20″ style=”font-family: inherit; font-size: inherit;”>you do not have a master detail, then you will need to use a trigger to perform the rollup for you.
<div id=”ext-gen19″><strong id=”ext-gen20″>And apex triggers will only work when you update the records. So in my opinion, you cannot get the rolled up values without updating the records atleast once.

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