Re: quoting values magic

d == dalroi(at)solfertje(dot)student(dot)utwente(dot)nl writes:

d> On May 26, 2009, at 6:37 PM, Brandon Metcalf wrote:
d> > j> option 2: case when '$length' = '' ...
d> >
d> > j> you can use case like this:
d> >
d> > j> UPDATE foo
d> > j> SET
d> > j> pattern = '$pattern',
d> > j> shape = '$shape',
d> > j> length = case when '$length'='' then length else
d> > '$length' end,
d> > j> comment = '$comment'
d> > j> WHERE foo_id = $foo_id
d> >
d> > j> here you can substitute any value you choose for the empty string,
d> > j> 0 or NULL may (or may not) be more apropriate.
d> >
d> >
d> > The issue here is that these reduce back to my original problem. For
d> > example, if I use a CASE statement and I fall through to the ELSE,
d> > then the SQL is attempting to insert a "''" in a NUMERIC field which
d> > is not valid. That is, it's trying to do

d> No it doesn't, read that statement again ;)

Oops. Indeed, you are correct.

--
Brandon