How to select last 3 minutes' records from MySQL with PHP

Question

this is my SQL table:

+----------------+----------------+-----------+------------------------+ 
|   User_Name    |    Password    |    IP     |        Login_         


        

Answer 1

Use this sql query:

select * from myTable where Login_time > date_sub(now(), interval 3 minute) ;

Answer 2

This query will work even if your table is not updated...

select * from myTable where Login_time > select max(time) - interval 3 minute ;