I want to test and see if a select statement was executed. with DBD::mySQL I have been able to use 
$sth->execute;
if ($sth->errstr) {
    die "Failed to execute ($stmt) - ", $sth->errstr(), "\n";
}

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When I tried this with DB2 the script is not dropping into the if statement. 
use strict;
use DBI;
use DBD::DB2;

my $db2_user = 'USER';
my $db2_pass = 'PASSWORD';

my $dbh = DBI->connect('dbi:DB2:DB2', $db2_user, $db2_pass, {AutoCommi
+t => 0, RaiseError => 0, PrintError => 1})  or die "Cant connect to D
+B - $DBI::errstr\n";

my $stmt = "select ID from RULE where key = 123"; 
my $sth = $dbh->prepare($stmt) or die "Cant prepare ($stmt) - $DBI::er
+rstr\n";
$sth->execute or die "Cant execute ($stmt) - $DBI::errstr\n";

if ($sth->errstr) {
    die "Failed to execute ($stmt) - ", $sth->errstr(), "\n";
}
 
print "the execute should have failed before here\n";

my $col1;
$sth->bind_col(1,\$col1);
while ($sth->fetch) { print "id is: $col1\n"; }

print "should not get here\n";
$sth->finish() or die "Cant close sth - $DBI::errstr\n";
$dbh->disconnect() or die "Cant disconnect from DB - $DBI::errstr\n";

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here is the output 
C:\PerlScripts>test.pl
the execute should have failed before here
DBD::DB2::st fetch failed: [IBM][CLI Driver][DB2] SQL0904N  Unsuccessf
+ul execution caused by an unavailable resource.  Reason code: "00C900
+81", type of resource
: "00000200", and resource name: "SHTDB038.SHTT09Z1".  SQLSTATE=57011
should not get here

C:\PerlScripts>

[download]

In reply to DB2 checking for an error on select by Anonymous Monk

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