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Difference between Webi Formula and variable

Hi All,

I thought to write something which is not covered yet in Google. Lately, while working on a report where one formula is used multiple times an interview question pops up in my mind that what is the difference between formula and variable.

Benefit of variable:

Easy to understand & recognize.

Change is at one place and reflects everywhere in the report.

Maintenance efforts are less in case of future change.

Variable is manadatory to create detail variable.

Amit

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