我需要选择时间戳在现在和过去5分钟之间的行。我该怎么做?这样的事情:
select * from tableName where timestamp between sysdate and up to -5 min
越简单越好。
答案 0 :(得分:8)
select *
from tableName
where timestamp between sysdate and sysdate - interval '5' minute
或旧式:
select *
from tableName
where timestamp between sysdate and sysdate - 5 * 60 / 86400
答案 1 :(得分:0)
SQL> select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') NOW
, to_char(sysdate - 1/24/12,'yyyy-mm-dd hh24:mi:ss') "5 min. before"
from dual;
NOW 5 min. before
------------------- -------------------
2011-09-15 15:11:06 2011-09-15 15:06:06