I have a script that I copied from one directory to another and modified it to handle some slightly different data, but now it doesn't work. It will allow me to upload a 4K gif, but when I try to upload a 13K jpeg, I can prepare, but not execute, the SQL. Here's a minimal test case: 
sub updateFlyer {
    my $contentType = shift;

    use DBI qw(:sql_types);

    my ( $sql, $sth, $dbh, $mimeType, $contentImage );
    
    # Database connection
    $dbh = DBI->connect("dbi:ODBC:something", 'something', 'somepass',
+ 
            {RaiseError => 1}) or die DBI->errstr;
            
    # Debug stuff
    if (1) {
        DBI->trace(2, "trace.txt");
    }

    ( $mimeType, $contentImage ) = uploadImage( $query );

    $sql =  "UPDATE interface..CustomContent " .
            "SET contentImage     = ?," .
            "    contentImageType = ? ".
            "WHERE contentType    = ?";
    $sth = $dbh->prepare( $sql );

    # Gotta bind the image
    $sth->bind_param( 1, $contentImage, SQL_LONGVARBINARY );
    $sth->execute ( $contentImage,
                    $mimeType,
                    $contentType );
    $sth->finish;
    $dbh->disconnect;
}

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The error message is: 
DBD::ODBC::st execute failed: [Microsoft][ODBC SQL Server Driver][SQL 
+Server]String or binary data would be truncated. (SQL-22001)
[Microsoft][ODBC SQL Server Driver][SQL Server]The statement has been 
+terminated. (SQL-01000)(DBD: st_execute/SQLExecute err=-1) at D:\some
+path\cgi-bin\somescript.cgi line 447.

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Digging further, I ran a trace with both this script and the working original (I cannot find a significant difference in how they are written) using the same 13K jpeg. The only difference I can see is the following information buried in the trace text: 
Failed upload:
(size 12723/12724/0, ptype 4, otype 1)

Good upload:
(size 12723/12724/12723, ptype 4, otype 1)

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I'm sure that zero is the source of the problem, but I have no idea what it means.

We're using NT 4.0, service pack six with IIS and MS SQL Server 7.0. The two scripts are writing to separate tables and I have verified that the field is defined the same way in both tables.

Barring anyone having seen this problem before, can you point me to where I can get information on deciphering the DBI->trace() method's output?

Cheers,
Ovid

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In reply to DBI Problem - binding variables by Ovid

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