What are you trying to do again? Where is the code that you've tried thus far, and what problem do you have with it?

You've already asked a few questions on perlmonks, but maybe try reading How do I post a question effectively?.

- Miller

Update: Thank you for the updated posting

The below code uses a placeholder like you described.

my $sth = $dbh->prepare(qq{SELECT val1 FROM tb11 WHERE x=?})
foreach my $id (@id){
    $sth->execute($id) or die $dbh->errstr;
    $sth->bind_columns(\my $val1);
    while ($sth->fetch) {
        push @ary, $val1;
    }
}

[download]

Or in a single statement

if (@id) {
    my $ids = join ',', map {$dbh->quote($_)} @id;
    $col_ref = $dbh->selectcol_arrayref(qq{SELECT val1 FROM tb11 WHERE
+ x IN ($ids)})
}

[download]

Update2Mistype, meant prepare not selectcol_arrayref

In reply to Re: How to use Perl DBI to select just on column of db by wind
in thread How to use Perl DBI to select just on column of db by lightoverhead

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