That depends. In this case my consideration was that I did not want someone thinking that they should access that variable directly, and making the connection logic implicit to needing the database simplified initialization logic.

Making it impossible to even try to make that mistake makes it less likely that I will. :-)

In reply to RE (5): passing DBI database handles to subroutines by tilly
in thread passing DBI database handles to subroutines by moo

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