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Re^2: Concrete SQL from SQL::Abstract?

by benizi (Hermit)
on May 13, 2010 at 20:20 UTC ( #839898=note: print w/replies, xml ) Need Help??


in reply to Re: Concrete SQL from SQL::Abstract?
in thread Concrete SQL from SQL::Abstract?

And yes, unfortunately, you will have to take care of quoting the data yourself.

...that's half the point of my question, and being forced to use 'generate' defeats the benefit of using SQL::Abstract.

Nonetheless, thanks. I'd glossed over the generate function in the first place, and the following is sufficient for simple inserts:

my $dbh = DBI->Connect(@params); # initialized elsewhere my $sqlgen = SQL::Abstract->new; my %data = (a => undef, b => 1, c => q/'string and string'/); $_ = $dbh->quote($_) for values %data; print scalar $sqlgen->generate('insert into',\'atable',\%data); __END__ # prints: INSERT INTO atable SET a = NULL, b = '1', c = '\'string and string\''

(Not sure whether the way it's quoting might cause trouble with, e.g., ZIP codes, where '08540' <> 8540...)

Still interested in a broader solution.

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Re^3: Concrete SQL from SQL::Abstract?
by benizi (Hermit) on May 13, 2010 at 21:44 UTC

    Dang. In addition to not noticing the slightly odd insert into X set field=value, field2=value2 syntax (as opposed to the 'insert' method's more standard insert into (fields) values (values)), I didn't realize there's weirdness with question marks:

    my %data = ( url => "http://foo/bar?baz", asdf => 1, thing => \'now()' + ); $_ = (ref) ? $_ : $dbh->quote($_) for values %data; print scalar $sqlgen->generate('insert into',\'atable',\%data); __END__ Use of uninitialized value in substitution iterator at /usr/lib/perl5/ +vendor_perl/5.10.0/SQL/Abstract.pm line 1290. INSERT INTO atable SET asdf = '1', thing = now(), url = 'http://foo/ba +rbaz'

    Seems this simply isn't the general use-case for 'generate'.

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