I have a table with ID and Dept.
Table is
id  dept    salary  date
1   30      2000    8/25/2015 12:06:54.870 PM
2   20      5500    7/12/2015 12:06:54.870 PM
3   30      6700    11/21/2013 12:06:54.870 PM
4   30      8900    4/16/2009 12:06:54.870 PM
5   30      9900    6/29/2014 12:06:54.870 PM
6   10      1120    7/3/2015 12:06:54.870 PM
7   20      8900    4/13/2013 12:06:54.870 PM
8   10      2400    7/23/2015 12:06:54.870 PM
9   30      2600    8/21/2015 12:06:54.870 PM
10  10      2999    8/3/2015 12:06:54.870 PM
Just need the output like this 
Dept  ID
30     1,3,4,5,9
 
     
     
     
    