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Why we use parameters instead of hard code in datastage.
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Answer Posted / nish
hard coding is a very bad practice.
You will face troubles once you deploy to production environment and need to make changes.
Instead if you parameteris and just make the change in original it will automatically update.
This is similar to your ATM card and pin. even if you change/update your pin the card will work.
If pin is hardcoded to the card and you need to change pin, then you need to get a new card everytime you want to change pin.
Does that make sense?
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