[Problem with JSON dataset]

It worked ! 

[Report Building using Table ?]

Hi, 

  Have a dataset which looks like 

   

Date/Time	User	Column 1	Column 2
201411	Nate	9	9
201411	Kate	9	9
201502	Bob	10	4
201502	Nate	20	20
201502	Karen	12	8

 

Would like to create a report which looks like

	201411		201502
User	Column 1	Column 2	Column 1	Column 2	Total
Nate	9	9	20	20	58
Kate	9	9	0	0	18
Bob	0	0	10	4	14
Karen	0	0	12	8	20

 

Any suggestions or pointers ? Thanks