I've been bouncing some ideas around after reading these: Tao::DBI::st, DBIx::bind_param_inline, Method::Signatures, Devel::Declare, DBI recipes#Binding columns and fetching
SELECT $dbh,
":name, :email from ... where DIAPER=?",
'soft and absorbant'
{
print "$name < $email >\n";
}
|
SELECT $dbh,
" :name, :email
from ...
where
DIAPER LIKE ?
",
'soft and absorbant'
{
print "$name < $email >\n";
}
|
SELECT $dbh,
":name, :email from ... where DIAPER=?",
'soft and absorbant' {
print "$name < $email >\n";
}
|
SELECT $dbh,
" :name, :email
from ...
where
DIAPER LIKE ?
",
'soft and absorbant' {
print "$name < $email >\n";
}
|
$dbh->SELECT
":name, :email from ... where DIAPER=?",
'soft and absorbant'
{
print "$name < $email >\n";
}
|
$dbh->SELECT
" :name, :email
from ...
where
DIAPER LIKE ?
",
'soft and absorbant'
{
print "$name < $email >\n";
}
|
$dbh->SELECT(
":name, :email from ... where DIAPER=?",
'soft and absorbant',
sub {
print "$name < $email >\n";
});
|
$dbh->SELECT(
" :name, :email
from ...
where
DIAPER LIKE ?
",
'soft and absorbant',
sub {
print "$name < $email >\n";
} );
|
for my $quality ( 'soft', 'absorbant' ){
SELECT ":rec{name}, :rec{email} from ... where DIAPER=?", $quality
+ {
print "$rec{name} < $rec{email} >\n";
}
}
|
Say these are lines 2 3 4 5 6 in file foo.pl for my $quality ( 'soft', 'absorbant' ){
SELECT ":{name}, :{email} from ... where DIAPER=?", $quality {
print "$rec{name} < $rec{email} >\n";
}
}
So through some Devel::Declare type magic that becomes
{
my %rec = (
name => undef,
email => undef,
);
# line 3 foo.pl
my $sth = $dbh->prepare( "SELECT name, email from ... where DIAPER
+=?" );
# line 3 foo.pl
$sth->execute( $quality );
$sth->bind_col(1, \$rec{name});
$sth->bind_col(2, \$rec{email});
while( $sth->fetchrow_arrayref ){
# line 4 foo.pl
print "$rec{name} < $rec{email} >\n";
}
}
# line 7 foo.pl
|
But my thinking isn't clear, any ideas?
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