擺放SQL順序通過（簡單）

Question

我試圖訂購以下結果的參考。使用Order by和desc限制100.有人可以幫我放置它的位置。

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

Answer 1

要訂購一個SQL查詢很簡單。

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

Answer 2

嘗試：

<?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 

");