我正在使用第三方应用程序,并尝试根据数据提取有关班次信息的有意义信息。
shift_pattern_start_dt pattern
2014-05-27 1111000
2015-10-25 1110011
2014-05-27
是Tuesday
模式的起始位置Tuesday
。所以我希望结果显示Tuesday
,Wednesday
,Thursday
和Friday
。
2015-10-25
是Sunday
此模式的起始位置为Sunday
。结果应为Sunday
,Monday
,Tuesday
,Friday
和Saturday
。
确定正确工作日的任何想法或建议?
答案 0 :(得分:10)
Declare @YourTable table (shift_pattern_start_dt date, pattern varchar(25))
Insert Into @YourTable values
('2014-05-27','1111000'),
('2015-10-25','1110011')
Select *
,NewCol = concat(
IIF(substring(pattern,1,1)='1', +DateName(WEEKDAY,shift_pattern_start_dt),'')
,IIF(substring(pattern,2,1)='1',','+DateName(WEEKDAY,dateadd(DAY,1,shift_pattern_start_dt)),null)
,IIF(substring(pattern,3,1)='1',','+DateName(WEEKDAY,dateadd(DAY,2,shift_pattern_start_dt)),null)
,IIF(substring(pattern,4,1)='1',','+DateName(WEEKDAY,dateadd(DAY,3,shift_pattern_start_dt)),null)
,IIF(substring(pattern,5,1)='1',','+DateName(WEEKDAY,dateadd(DAY,4,shift_pattern_start_dt)),null)
,IIF(substring(pattern,6,1)='1',','+DateName(WEEKDAY,dateadd(DAY,5,shift_pattern_start_dt)),null)
,IIF(substring(pattern,7,1)='1',','+DateName(WEEKDAY,dateadd(DAY,6,shift_pattern_start_dt)),null)
)
From @YourTable
返回
shift_pattern_start_dt pattern NewCol
2014-05-27 1111000 Tuesday,Wednesday,Thursday,Friday
2015-10-25 1110011 Sunday,Monday,Tuesday,Friday,Saturday
编辑 - 交叉应用版
Select A.*
,B.*
From @YourTable A
Cross Apply (
Select NewCol =Stuff((Select ',' +D
From (
Select N,D = IIF(substring(A.pattern,N,1)='0',null,DateName(WEEKDAY,DateAdd(DAY,N-1,A.shift_pattern_start_dt)))
From (Values (1),(2),(3),(4),(5),(6),(7)) N(N)
) B1
For XML Path ('')),1,1,'')
) B
Concat()方法的执行计划
交叉申请方法的执行计划