Hi guys. I need some help! I've been at work now for 36 hours (seen the same people come and go twice already!) and I've been stumped on a problem for a bit.

I'm trying to insert a row into a database and pull out the ID (primary key) that the database assigned automatically. I'm using DBI, but I tried the AddNew() func in ADODB.Recordset but that was no joy. Back to DBI now.

My original thought was insert the data and do a "Select MAX" on the primary key, but could end up worse than the race conditions you get in bad file-locking practices.


I am sure that there must be a way of doing this in DBI, but I can't see how - execute() returns 1 always (almost always)

It's starting to do my head in! I read through the DBI docs again but couldn't find anything - neither on usenet nor on PM Super Search. Although this could be due to my almost delirious hyper-caffeinated state. The answer is probably staring me in the face. Oh, I tried DBIx::Recordset and didn't like it much although I suspect it "might" be able to do what I want (sorry Terrence).

I appreciate any help available. Here's a bit of code I've munged over the past few hours... (I know its not terribly efficient at this stage but I'll fix that once I figure out how to do this primary key thing): 
    use DBI;

    # declared variables - dsn, etc...

    my @columns = keys %$input;
    my $columns = join ', ', @columns;
    my @values = map {$input->{$_} } @columns;
    my $vars = join ',', map { "?" } @columns;

    my $conn = DBI->connect($dsn, $user, $pass);
    my $sql = "Insert Into $table ($columns) values ($vars)";
    my $sth = $conn->prepare($sql);
    $sth->execute(@values);
    # return $sth->{int_id}  ?

[download]
Thank you guys

$ perldoc perldoc

In reply to DBI and primary keys by $code or die

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