grouping data with the same category

• goyers-382153

  SSC Veteran

  Points: 280

  More actions

  May 31, 2007 at 2:35 am

  #372098

  Hi can anyone help me on how I can group data by defining programatically a group number for a defined group of data using its parent_id. Here's how the data looks:

  PARENT_ID	UNIQUE_ID
  100	100
  100	130
  100	140
  100	120
  100	125
  100	127
  100	128
  200	200
  200	210
  200	215
  300	300
  300	310
  300	315

  Now what I want to do is group the data with the same parent_id programatically. The ouput should look like this:

  GROUP	PARENT_ID	UNIQUE_ID
  1	100	100
  1	100	130
  1	100	140
  1	100	120
  1	100	125
  1	100	127
  1	100	128
  2	200	200
  2	200	210
  2	200	215
  3	300	300
  3	300	310
  3	300	315

  Please help or any suggestion how I can do this. Thanks.

• John Mitchell-245523

  SSC Guru

  Points: 148809

  More actions

  May 31, 2007 at 3:54 am

  #709939

  I think the DENSE_RANK function is what you're looking for.

  John