I have a table, that keeps track of store holiday hours:
LOCATION_ID DATE1 TIMES1 DATE2 TIMES2 123456 2020-12-12 10:00AM-09:00PM 2020-12-19 10:00AM-09:00PM
This is a highly oversimplified table. There’s about 30 columns horzontially consisting of store operating hours by date – It continues (DATE3, TIMES3, DATE4, TIMES4, etc).
I need to unpivot the values vertically, ensuring the date and time values are on the same record.
(NOTE: Once I figure out to structure the UNPIVOT
expression properly, I will use Dynamic SQL on my own to pivot the column names)
Desired Outcome:
LOCATION_ID DATE TIME 123456 2020-12-12 10:00AM-09:00PM 123456 2020-12-19 10:00AM-09:00PM
I tried using UNPIVOT
, but I’m stuck. Any ideas?
SAMPLE DATA:
CREATE TABLE #HOURS (LOCATION_ID int, DATE1 varchar(255), TIMES1 varchar(255), DATE2 varchar(255), TIMES2 varchar(255)); INSERT INTO #HOURS VALUES ('123456', '2020-12-12', '10:00AM-09:00PM','2020-12-19','10:00AM-09:00PM' )
Code that I tried:
SELECT * FROM (SELECT location_id, [date1], [times1], [date2] FROM #hours) AS cp UNPIVOT ( pivotvalues FOR pivvalues IN ([Date1], [date2], [times1]) ) AS up1
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Answer
Gordon is 100% correct (+1).
However, if you are looking for a dynamic approach WITHOUT having to use Dynamic SQL, consider the following.
Example
Select Location_ID ,Date = max(case when [Item] like 'DATE%' then Value end) ,Time = max(case when [Item] like 'TIME%' then Value end) From ( select A.Location_ID ,Grp = replace(replace([Item],'DATE',''),'TIMES','') ,B.* from #hours A Cross Apply [dbo].[tvf-XML-Unpivot-Row]( (Select A.* for XML RAW) ) B Where [Item] not in ('LOCATION_ID') ) A Group By Location_ID,Grp
Returns
Location_ID Date Time 123456 2020-12-12 10:00AM-09:00PM 123456 2020-12-19 10:00AM-09:00PM
The Table-Valued Function if Interested
CREATE FUNCTION [dbo].[tvf-XML-UnPivot-Row](@XML xml) Returns Table As Return ( Select Item = xAttr.value('local-name(.)', 'varchar(100)') ,Value = xAttr.value('.','varchar(max)') From @XML.nodes('//@*') xNode(xAttr) )