Knowing not too much from perl, I would like to remember the last
paragraph of Jeremiah:
Keep in mind that interpolation is work, so using one of the
single quotes
strings which does not search your string for variables to
replace is going
to be higher performance than the double quoted
Funny you should bring up this subject, as it was recently rehashed
(more like re-re-re-re-hashed!) on perlmonks.org in this discussion
thread:
http://perlmonks.org/?node_id=481652
The conclusion of the discussion(s) is that there are valid reasons to
use single and double quotes in various
When you use double quotes for strings in Perl, Perl looks through your
strings for variables like $foo, and replaces them with the current value of
$foo. This is called interpolation. When you use single quotes, it
considers your string a literal.
So when you use double quotes, you need to
From 'perldoc perldata':
Variable substitution inside strings is limited to scalar
variables, arrays, and array or hash slices. (In other
words, names beginning with $ or @, followed by an optional
bracketed expression as a subscript.)
You can check this from the command line:
% perl
At 07:03 PM 7/22/05, Siegfried Heintze wrote:
I'm having trouble getting the like clause to work. It seems to work fine in
the MySQL Control Center 9.4.beta. I'm using MySQL 4.0.23-debug.
use DBH;
my $sth = DBH-prepare(SELECT 'David!' LIKE '%D%v%');
$sth-execute();
my $row;
print
