关于数据库sql拼写！急！！！！

Question

从2015-01-01开始到2015-01-31,提取每天22点到第二天9点的数据，注意有开始时间（START_TIME）和结束时间（END_TIME）
我的sql：
select A.BILLING,sum(out + in) from inf.EVEN_TGAS A
where A.START_TIME between '2015-01-01 22:00:00' and '2015-01-31 09:00:00'
and A.end_TIME between '2015-01-01 22:00:00' and '2015-01-31 09:00:00'
GROUP BY A.BILLING
limit 10;

怎么才能不提取比如像2015-01-02 14:23:50那个时间点的数据呢？？？
麻烦各位大神了

Answer 1

你试下这样是否满足你的要求，按照你所写的内容，因为有开始时间和结束时间，所以会有很多数据时间上是处于交叉的，
如开始时间满足时间要求，但是结束时间不在咱们的时间段内，这些我都给算成是不统计的数据了。

     select A.BILLING,sum(out + in) from inf.EVEN_TGAS A
    where (SUBSTRING(A.START_TIME,1,11) >= '2015-01-01' and SUBSTRING(A.START_TIME,1,11)<= '2015-01-31')--判断开始日期是否符合时间段
    and (SUBSTRING(A.end_TIME,1,11) >= '2015-01-01' and SUBSTRING(A.end_TIME,1,11)<= '2015-01-31')--判断结束日期是否符合时间段
    and (
        (SUBSTRING(A.START_TIME,12,8) >= '22:00:00' and SUBSTRING(A.START_TIME,12,8)<= '23:59:59')
        or 
        (SUBSTRING(A.START_TIME,12,8) >= '00:00:00' and SUBSTRING(A.START_TIME,12,8)<= '09:00:00')
    )and (
        (SUBSTRING(A.end_TIME,12,8) >= '22:00:00' and SUBSTRING(A.end_TIME,12,8)<= '23:59:59')
        or 
        (SUBSTRING(A.end_TIME,12,8) >= '00:00:00' and SUBSTRING(A.end_TIME,12,8)<= '09:00:00')
    )and (
        datediff(second,A.START_TIME,A.end_TIME) <= 39600 -- 保证时间不是跨度好多天的数据
    )

    GROUP BY A.BILLING
    limit 10;

语句比较繁杂，你可以试着优化优化