> There are ways to avoid some of the errors (disregarding if that is good practice), but the self-documenting part is still true.

Very generic ...

In this sense: DRY is also a good practice! :)

And less generic:

The best practice would be a programming style/ SQL abstraction which allows defining the fields just once and automatically checks a table's integrity at compile-time.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^4: DBI::CSV using a variable to request columns by LanX
in thread DBI::CSV using a variable to request columns by Sandy_Bio_Perl

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