读写数据库的有关问题

sql_query($querySel)) )
{
    message_die(DB_MESSAGE, 'Could not query Admin');
        
}else{
    
    $row = $db->sql_fetchrow($result);    
    //$db->sql_freeresult($result);
        
    if (empty($row['ID'])){
        
        $sql="insert into Admin (AdminID,PassWord,Editer,Addtime) values('".$AdminID."','".md5($PassWord)."','".$_SESSION['AdminID']."','".$Addtime."')";
        if( !($result = $db->sql_query($sql)) )
        {
            //echo $sql;
            message_die(DB_MESSAGE, 'Could not query Admin');
                
        }else{
                    
          echo "";    
        }    
        
    }else{
        
        echo ""; 
    }
}        
?>