SQL查询实时数据排除如果第一次发现

Question

我想从我们AspenTech公司的IP 21的服务器查询数据和现在用的是下面的查询其他时间

SELECT s.IP_TREND_VALUE AS "Weight", s.IP_TREND_TIME AS TIMES 
From "wtTotal" as s 

WHERE s.IP_TREND_TIME like '__________05:59:00.%' AND s.IP_TREND_TIME between '1-JUN-17 05:59:00' and '15-JUN-17 06:00:00' 
OR s.IP_TREND_TIME like '__________06:00:00.%' AND s.IP_TREND_TIME between '1-JUN-17 05:59:00' and '15-JUN-17 06:00:00' 

的问题是，有些天就有一个数据点在5:59和其他人在6点的数据点。一些在两个5:59有数据，并在6，我想只有拉的每一天，从来没有一个数据点的一个或两者在5:59和6

Answer 1

with CTE as 
(
SELECT s.IP_TREND_VALUE AS "Weight", s.IP_TREND_TIME AS TIMES, 
     row_number() 
     over (partition by to_char(IP_TREND_TIME, 'YYYYMMDD') 
       order by IP_TREND_TIME asc) as rn -- change the order by to change which value to select 
From "wtTotal" as s 
WHERE s.IP_TREND_TIME like '__________05:59:00.%' AND s.IP_TREND_TIME between '1-JUN-17 05:59:00' and '15-JUN-17 06:00:00' 
OR s.IP_TREND_TIME like '__________06:00:00.%' AND s.IP_TREND_TIME between '1-JUN-17 05:59:00' and '15-JUN-17 06:00:00' 
) 
select * 
from CTE 
where RN = 1