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I have an instance of an Object, which has the variables 

type = x, number_of_exams = 2, previous_no_of_exams = 0.

In the next instance of the object, of the same type = x, I want the previous_no_of_exams to be = to 2, number_of_exams = 0.

So when an instance of the same object is created, I want it to check any previous record of that object, type 'x' and get the number_of_exams value and assign it to the new object instance's previous_no_of_exams variable.

Can this be done without APEX or triggers?.

Maybe through workflows or process automation?

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  • How you distinguish which object is "previous" ?
    – user1974566
    Nov 30, 2018 at 9:48
  • can we check, if the same type of object exist before hand, like a before trigger does. but without a trigger?
    – Niveth Kumar
    Nov 30, 2018 at 10:00
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    You could have a look at Visual Flows, they allow querying of other objects.
    – Folkert
    Nov 30, 2018 at 10:11

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Have you tried storing these variables in a custom setting? I believe you can store those "counter" type variables and then update from process builder if you're trying to keep an active count of how many records have been created / updated.

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