Maybe you should check out that your $dbh is still kosher by the time you get to running this identity query. Has it been reset or anything?

With DBD::Pg and PostgreSQL, I do the following: 

# some standard DBI code doing an INSERT here..
my $dbh = ...;
my $sth = $dbh->prepare('...');
$sth->execute(@values);

my $seq = 'SOME_SEQUENCE_NAME';
my $sth = $dbh->prepare("SELECT currval('$seq')");
$sth->execute() or die $dbh->errstr;
if (my @row = $sth->fetchrow_array) {
  return $row[0];
}

[download]

The reason this works (I think) is that I am using the same $dbh as for an INSERT statement earlier in the code. That and PostgreSQL's way of doing this is better than TSQL's. I hated @@identity when I used to work with SQL Server.

I realise the difference here is that in Sybase (and MS SQL Server) TSQL you have to use @@identity, rather than just SELECT on a sequence. I hope this gives you some insight all the same. Maybe you should try and do this in 'raw DBI' first, and then use that to patch Class::DBI. If you get something that works please post it on this thread; I don't have access to a Sybase instance but I would still be interested.

That line in Class::DBI looks like it could use a polymorphic get_id method. I haven't used Class::DBI (yet) though so I won't comment further.

In reply to Re: Class::DBI && Sybase by DapperDan
in thread Class::DBI && Sybase by kal

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