What is the reason not to use select *?

Question

I\'ve seen a number of people claim that you should specifically name each column you want in your select query.

Assuming I\'m going to use all of the columns anyway

Answer 1

It makes your code more ambiguous and more difficult to maintain; because you're adding extra unused data to the domain, and it's not clear which you've intended and which not. (It also suggests that you might not know, or care.)