Expression rule

udhay kumar

Certified Associate Developer

over 2 years ago

Hi All,

I just need to know which one is the best practice

1)creating an expression rule to fetch the data and creating another rule to manipulate the retrieved data

2) using same expression rule for both things

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Chris over 2 years ago +3

I've used both methods - I prefer to separate but sometimes is not necessary. If the rule to fetch raw data might be used in another location, separate it out from the manipulation rule. If the rule is…
Stewart Burchell over 2 years ago +2
Appian Employee

The answer lies in whether you think the fetch of the data needs to be re-used in other contexts or you will always use the manipulated version of the fetched data.
Mike Schmitt over 2 years ago in reply to udhay kumar +2

Generally speaking I'd say you can create as many expression rules as you need without impacting performance. What it will impact is ease of finding the one you actually need if you create many extra ones…

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Klaus34 over 2 years ago

First of all appian should not be used to manipulate or play with data as this is not the best practice . it would be great if it is done from DB side and then fetch the manipulated data.
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Klaus34 over 2 years ago

First of all appian should not be used to manipulate or play with data as this is not the best practice . it would be great if it is done from DB side and then fetch the manipulated data.
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