fetchall_arrayref returns zero if the query failed
my $result_array = $sth->fetchall_arrayref;
if (!$result_array) {
print "query failed!!\n";
}
If no rows are found (the query is successful, but no rows are returned) fetchall_arrayref returns a reference to an empty array.
my $result_array = $sth->fetchall_arrayref;
if ($result_array) {
print "success\n";
if (@$result_array) {
print "found rows @$result_array\n";
}
else {
print "no rows returned\n";
}
}
else {
print "query failed!!\n";
}
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.