oracle獲取當前時間前1天/1小時/1分鍾

---- 前2天 
select * from GPS_INFO where CREATE_TIME >  sysdate - interval '2' day
---- 前1天 
select * from GPS_INFO where CREATE_TIME > (SYSDATE - 1)

---- 前1小時
select * from GPS_INFO where CREATE_TIME > sysdate-1/24

---- 前 5分鍾  如果要獲取前1分鍾最后改成 sysdate - 1/24/60*1就可以了
select * from GPS_INFO where CREATE_TIME > sysdate - 1/24/60*5