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";
}
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