I am trying to open media.vdb SQLite file using DBI module.But getting the error message

"DBD::SQLite::db prepare failed: file is encrypted or is not a databas
+e(26) at dbdimp.c line 269 at a.pl line 10.
Can't call method "execute" on an undefined value at a.pl line 3."
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Please help me out if any body has any idea about the problem.
Thanks in advance.
Chirag

Below is the code:
##########################################

use DBI qw(:sql_types);
my $dbh = DBI->connect("DBI:SQLite:media.vdb");
$tmp="select * from links_video";
$sth = $dbh->prepare($tmp);
$sth->execute();
@row=$sth->fetchrow();
print "ROW|@row|\n";
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