postgre查詢一段時間內的數據

 

select * from zaiko 
where createtime between (now() - interval '3 Days') and now() ;

select * from zaiko 
where createtime between (now() - interval '5 Mins') and now()

 ps經過實際核實，這方法有毛病，剛入的數據，幾十秒之后才能刷的出來