"... this will ensure you always have the same order: my @keys = keys %test;"

Actually, that's only true for versions of Perl prior to 5.18.0. From perl5180delta: Hash overhaul:

"By default, two distinct hash variables with identical keys and values may now provide their contents in a different order where it was previously identical."

I have v5.18.1 - here's a few example runs: 

$ perl -Mstrict -Mwarnings -E 'my %x = map { $_ => 1 } "A" .. "E"; my 
+@y = keys %x; say "@y"'
A D E C B

$ perl -Mstrict -Mwarnings -E 'my %x = map { $_ => 1 } "A" .. "E"; my 
+@y = keys %x; say "@y"'
D E C B A

$ perl -Mstrict -Mwarnings -E 'my %x = map { $_ => 1 } "A" .. "E"; my 
+@y = keys %x; say "@y"'
D E B A C

[download]

Either a sort on the keys, or even a hard-coded list, would probably provide a more robust solution.

-- Ken

In reply to Re^2: DBI and mysql query formatting by kcott
in thread DBI and mysql query formatting by kimlid2810

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