You are missing one step.

From the manual:
For SELECT statements, execute simply "starts" the query within the database engine.

To actually get/iterate through the results, you need to do a "fetch" command like 

 my $rowref = $sth->fetchrow_arrayref();

[download]
 Update1: Ugh!. Misread the problem. Sorry.

Update2: Ok - so it looks like the underlying mysql driver does not support those attributes.
But you probably already knew that.

     Syntactic sugar causes cancer of the semicolon.        --Alan Perlis

In reply to Re: DBD::mysqlPP does not support TYPE and PRECISION statement handles? by NetWallah
in thread DBD::mysqlPP does not support TYPE and PRECISION statement handles? by taioba

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