Multiple rows into a single row and combine column SQL

Question

I am trying to make this view query two tables and then roll up each Program ID into one row with all the AttributeNames in the AttributeNames colum together

I joine

Answer 1

select ProgramId,
stuff(
(
    select ','+ [attributename]
    from Table1 
    where programid = t.programid for XML path('')

),1,1,'') as AttributeNames
from (select distinct programid 
      from Table1 )t

Check out my sql fiddle

Results

PROGRAMID   ATTRIBUTENAMES
887         Study Design,Control Groups,Primary Outcomes