When you run into errors or unexpected results in DBI related scripts, why not have DBI help you to show it?

my $db_server   = "";
my $host        = $db_server;
my $db          = "";
my $db_user     = "";
my $db_password = '';
my $dbh = DBI->connect("dbi:Oracle:$host",
    $db_user,     # Do NOT quote a simple variable (yes, undef is vali
+d)
    $db_password, # Do NOT quote a simple variable (yes, undef is vali
+d)
    {   RaiseError         => 1,   # Let DBI crash on errors
        PrintError         => 1,   # And have it shaw what fails
        ChopBlanks         => 1,   # Mostly a good idea
        ShowErrorStatement => 1,   # You'll want to see the statement
        FetchHashKeyName   => "NAME_lc",  # Be predictable for field n
+ames
        LongReadLen        => 0x7FFFF,    # How big is your data?
        }
    ) or die "Couldn't connect to database: ".DBI->errstr;

[download]

When that still doesn't help, you want to peek at DBI's trace.

As you are a poor user that connects to Oracle (we all know that Oracle sucks beyond belief in many ways, but to be honest, so do most - if not all - other databases as well), you will probably also have to check out the LongReadLen (you already do, but I don't know how well length returns the correct size(s)) and LongTrunkOk attributes. For Oracle they do matter (a lot).

Last but not least, check out bind_param (something like  $sth->bind_param (1, $in_blob, { ora_type => SQLT_BIN });) and how Oracle deals with it.


Enjoy, Have FUN! H.Merijn

In reply to Re: displaying BLOB from Oracle : help by Tux
in thread displaying BLOB from Oracle : help by sdj

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