Flatten table rows into columns in SQL Server [duplicate]

Answer 1

If you have a know or maximum number of desired columns, you can do a simple PIVOT, otherwise, you would need to go DYNAMIC

Example

 Select *
  From (
        Select [Code]
              ,[Data]
              ,[Col] = concat('Data',Row_Number() over (Partition By [Code] Order by 1/0))
         From  YourTable
       ) src
 Pivot (max([Data]) for [Col] in ([Data1],[Data2],[Data3],[Data4],[Data5])) pvt

Returns

Code        Data1   Data2   Data3   Data4   Data5
SL Payroll  22      33      43      NULL    NULL