SqlServer？
--6.根据给定时间为基准以2小时为划分，得出一天划分出的时间段
declare @time varchar(5)
set @time='11:13'
select ltrim(a.number)+right(@time,3)+'-'+ltrim(b.number)+right(@time,3) as [划分结果]
from master..spt_values a with(nolock),master..spt_values b with(nolock)
where a.type='P' and b.type='P'
and a.number>=left(@time,2) and b.number<=24
and a.number+2=b.number
/**
划分结果
-----------------------------------
11:13-13:13
12:13-14:13
13:13-15:13
14:13-16:13
15:13-17:13
16:13-18:13
17:13-19:13
18:13-20:13
19:13-21:13
20:13-22:13
21:13-23:13
22:13-24:13
*/
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