eval
{
 $dbh->do("DELETE FROM MASTER1 WHERE mrID=999");
 $dbh->do("INSERT INTO MASTER1 (mrID) VALUES (999)");
 $sql = "UPDATE MASTER1 SET mrDESCRIPTION=? WHERE mrID=999";
 $sth = $dbh->prepare($sql);
 $sth->bind_param(1, $data, DBI::SQL_LONGVARCHAR); 
 $sth->execute();        
 $dbh->commit();
};