MySQL Query not returning any results

Question

I'm struggling to understand why my query isn't returning any results, please could you take a look and let me know what I'm doing wrong:

SELECT * FROM sys_online_users WHERE last_active BETWEEN NOW() AND DATE_SUB(NOW(), INTERVAL 10 SECOND) 

What I am trying to achieve is to show which users have been active within the last 10 seconds or any other time interval. However when I run the query I get no results, despite knowing that I have got updates in my table between the specified time range.

Answer 1

Yiu are going the wrong way with the between- first the ten seconds ago, and afterwards the now:

SELECT * FROM sys_online_users WHERE 
last_active BETWEEN DATE_SUB(NOW(),
INTERVAL 10 SECOND) 
AND NOW() 

Answer 2

尝试这个：

SELECT * FROM sys_online_users WHERE last_active BETWEEN DATE_SUB(NOW(), INTERVAL 10 SECOND) AND NOW()

Answer 3

只有列放置错误，请尝试以下操作：

SELECT * FROM sys_online_users WHERE last_active BETWEEN DATE_SUB(NOW(), INTERVAL 10 SECOND) AND NOW()

Answer 4

I have tried below query it is working perfect.In your query please take more gap with second then fire query you will get desired result

SELECT * FROM sys_online_users WHERE last_active BETWEEN DATE_SUB(NOW(), INTERVAL 50 SECOND) AND NOW();

In this query i have added 50 second so we can identify easily.