CREATE TABLE IF NOT EXISTS `users` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`names` varchar(30) NOT NULL,
`matricno` varchar(30) NOT NULL,
`class` varchar(30) NOT NULL,
`scores` varchar(30) NOT NULL,
`subject` varchar(30) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ;
$con = mysqli_connect("localhost", "root", "1024", "sch_one");
if (!$con) {
echo "Failed to connect to Database". mysqli_error();
}
INSERT INTO `users` (`id`, `names`, `matricno`, `class`, `scores`) VALUES
(1, 'Henry Okon Etim', '15/HCSS/001', 'A', 800),
(2, 'Henry Okon Etim', '15/HCSS/002', 'A', 804),
(3, 'Etim Okon Etim', '15/HCSS/003', 'A', 820),
(4, 'Lavalish Okon Etim', '15/HCSS/004', 'A', 730),
(5, 'Pherema Okon Etim', '15/HCSS/005', 'A', 920),
(6, 'Leman Okon Etim', '15/HCSS/006', 'A', 803),
(7, 'Lema3 Okon Etim', '15/HCSS/007', 'A', 500);
I am on a project that gives students positions based on their final scores. My problem is how to output positions according to the scores in a as 1st, 2nd, 3rd, 4th, 5th and so on. Please explanations and codes are welcome. Thanks!
请尝试以下代码:
SELECT * FROM users ORDER BY scores DESC;
From what I'm understanding you want to pimary keys(1/2/3..) to reflect their position?
That's not what the id's are for, if you want to order them you can just add an order by in your get query.
$result = $mysqli->query("SELECT * FROM users ORDER BY scores desc");
If you really want an index/counter in your select, you could always take a look at ranking in mysql, end result would be something like this:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, users.* FROM users ORDER BY scores DESC;
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.