通过（简单）放置SQL顺序

Question

我试图在参考时订购以下结果。使用Order by和desc limit 100.有人可以帮助我放置它。

$stm = $pdo->prepare("SELECT `reference`, SUM( `stockdifference` ) AS 'stockdifference'  
FROM `results1` 
WHERE `datum` BETWEEN '".$oldDate."' AND '".$newDate."' AND `reference` = '".$stm[0]."'");

Answer 1

订购SQL查询很简单。

Select *
FROM table
Where column=condition
ORDER BY column desc/asc
Limit

Answer 2

尝试：

<?php 
$stm = $pdo->prepare("SELECT `reference`, SUM( `stockdifference` ) AS 'stockdifference'  
FROM `results1` 
WHERE `datum` BETWEEN '".$oldDate."' AND '".$newDate."' AND `reference` = '".$stm[0]."'
Order by 'your column',
'your column' desc,
limit 100

");