I am trying to figure out what would be the best way in SQL or SSIS to pivot my results. I am pretty new to pivoting data and need some direction.
Here are my query results:
    SELECT [ID]
      ,[Medication]
      ,[Route]
      ,[Day]
      ,Sum(Cast(Dose as float) as TotalDose
      ,Medication + '_' + Route + '_' + Cast(Day as varchar(10)) as PivotKey
  FROM Table1
  group by ID, Medication, Route, Day
ID  Medication    Route Day TotalDose  PivotKey
1   Tylenol       IV    1   1500       Tylenol_IV_1
1   Tylenol       PO    1   1300       Tylenol_PO_1
1   Tylenol       PO    2   1950       Tylenol_PO_2
2   Aspirin       PO    1   1000       Aspirin_PO_1
2   Aspirin       PO    2   500        Aspirin_PO_2
I have an existing table that stores these PivotKeys as columns, or there is always an option I guess to create a new table based on the data in PivotKey. I am trying to make the results look as follows:
ID   Tylenol_IV_1   Tylenol_IV_2   Tylenol_PO_1   Tylenol_PO_2   Aspirin_PO_1   Aspirin_PO_2
----------
 1   1500                0             1300           1950           0                0
 2     0                 0               0              0           1000             500
Thanks for the suggestions!
