Question

如何汇总sql server中的时间列

我想总结星期一，星期二，星期三，星期四，星期五和星期六的时间，并更新到Tot_hrs我有更新逻辑我无法将星期一到星期六的hrs总结

CREATE TABLE WEEKLY_ATTN(
[SYSID] [int] IDENTITY(1,1) NOT NULL,
[EMPLOYEE_SYSID] [int] NULL,
[Mon_day] [varchar](10) NULL,
[Tue_day] [varchar](10) NULL,
[Wed_day] [varchar](10) NULL,
[Thu_day] [varchar](10) NULL,
[Fri_day] [varchar](10) NULL,
[Sat_day] [varchar](10) NULL,
[Tot_Hrs] [varchar](20) NULL

);

INSERT INTO WEEKLY_ATTN (employee_sysid,mon_day,tue_day,wed_day,thu_day,fri_day,sat_day)
values(41,'11:01','11:57','11:02','10:19','09:26',null);

以下是我使用的查询

select mon_day,Tue_day,wed_day,thu_day,fri_Day,sat_day,
cast(dateadd(s,
isnull(datediff(s, 0, mon_day), 0)+ 
isnull(datediff(s, 0, Tue_day), 0)+ 
isnull(datediff(s, 0, wed_day), 0)+
isnull(datediff(s, 0, Thu_day), 0)+
isnull(datediff(s, 0, fri_day), 0)+
isnull(datediff(s, 0, sat_day), 0)
,0) as time(0)) as Tot_hrs
from weekly_attn where employee_sysid=41; 

mon_day Tue_day wed_day thu_day fri_Day  sat_day tot_hrs
---------------------------------------------------------
11:01    11:57  11:02   10:19   09:26    NULL    05:45:00

然而总时间是53:45小时，任何人都可以纠正错误的地方。有什么帮助吗？

Answer 1

varchar应该是时间。

select *,CONVERT(varchar, DATEADD(ms,Tot_hrs * 1000, 0),114) from 
(select mon_day,Tue_day,wed_day,thu_day,fri_Day,sat_day,
isnull(cast(datediff(s, 0,cast( mon_day as time)) as float),0)+ 
isnull(cast(datediff(s, 0,cast(  Tue_day as time))as float),0)+ 
isnull(cast(datediff(s, 0,cast(  wed_day as time))as float),0)+
isnull(cast(datediff(s, 0,cast(  Thu_day as time))as float),0)+
isnull(cast(datediff(s, 0,cast( fri_day as time))as float),0)+
isnull(cast(datediff(s, 0,cast( sat_day as time)) as float),0)
as Tot_hrs
from @weekly_attn where employee_sysid=41)tbl

Answer 2

以下是一种总计数小时的方法

select 
CAST(
    CAST(SUBSTRING(isnull(mon_day,0),1,2) as int)+CAST(SUBSTRING(isnull(Tue_day,0),1,2) as int)+
    CAST(SUBSTRING(isnull(wed_day,0),1,2) as int)+CAST(SUBSTRING(isnull(Thu_day,0),1,2) as int)+
    CAST(SUBSTRING(isnull(fri_day,0),1,2) as int)+CAST(SUBSTRING(isnull(sat_day,0),1,2) as int) 
    +   
    (
    CAST(SUBSTRING(isnull(mon_day,0),4,5) as int)+CAST(SUBSTRING(isnull(Tue_day,0),4,5) as int)+
    CAST(SUBSTRING(isnull(wed_day,0),4,5) as int)+CAST(SUBSTRING(isnull(Thu_day,0),4,5) as int)+
    CAST(SUBSTRING(isnull(fri_day,0),4,5) as int)+CAST(SUBSTRING(isnull(sat_day,0),4,5) as int) 
    )/60

AS varchar(50))
+':'+
CAST(
    (
    CAST(SUBSTRING(isnull(mon_day,0),4,5) as int)+CAST(SUBSTRING(isnull(Tue_day,0),4,5) as int)+
    CAST(SUBSTRING(isnull(wed_day,0),4,5) as int)+CAST(SUBSTRING(isnull(Thu_day,0),4,5) as int)+
    CAST(SUBSTRING(isnull(fri_day,0),4,5) as int)+CAST(SUBSTRING(isnull(sat_day,0),4,5) as int) 
    )%60
AS varchar(50))
from weekly_attn

输出：53:45

如何在sql server 2008中总结时间？

2 个答案: