Hi all, I have a data set like below. I would like to delete all duplicate course values for an ID. For e.g. For ID 2, course E,U and W is duplicated. I want to keep only one row for each course. So for ID 2, I would like to have 4 rows showing courses E,J,U and W in each row. It does not matter which duplicate course is deleted. However If the course is missing, I would like to keep those blank courses. for eg. ID 6 and 16 have missing courses. Dataset I have: ID Status StatusBeginDate StatusEndDate Course CourseBeginDate CourseEndDate 1 WW 5/3/2017 9/30/2017 C 4/19/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 E 8/16/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 P 4/19/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 S 4/19/2017 11/7/2017 2 JJ 11/22/2017 2/16/2018 E 12/11/2017 12/18/2017 2 JJ 11/22/2017 2/16/2018 E 12/19/2017 2/27/2018 2 JJ 11/22/2017 2/16/2018 J 12/11/2017 12/15/2017 2 JJ 11/22/2017 2/16/2018 U 1/14/2014 2 JJ 11/22/2017 2/16/2018 U 7/17/2017 2 JJ 11/22/2017 2/16/2018 W 11/22/2017 12/8/2017 2 JJ 11/22/2017 2/16/2018 W 12/11/2017 12/15/2017 2 JJ 11/22/2017 2/16/2018 W 12/18/2017 2/27/2018 3 C1 10/27/2017 10/30/2017 B 10/17/2017 10/29/2017 3 C1 10/27/2017 10/30/2017 X 10/30/2017 10/30/2017 3 CC 9/1/2017 10/26/2017 B 10/17/2017 10/29/2017 3 CC 9/1/2017 10/26/2017 X 8/14/2017 10/16/2017 4 JJ 12/25/2017 3/1/2018 W 12/26/2017 2/25/2018 4 JJ 12/25/2017 3/1/2018 X 12/20/2017 1/29/2018 4 C3 12/16/2017 12/24/2017 W 10/23/2017 12/20/2017 4 C3 12/16/2017 12/24/2017 X 12/20/2017 1/29/2018 4 JJ 10/29/2017 12/15/2017 W 10/23/2017 12/20/2017 5 JJ 12/8/2017 E 12/28/2017 1/25/2018 5 JJ 12/8/2017 W 12/8/2017 12/27/2017 5 JJ 12/8/2017 W 12/28/2017 1/24/2018 5 CC 12/1/2017 12/7/2017 A 10/25/2017 12/7/2017 6 JJ 1/31/2017 1/31/2017 6 CC 12/6/2016 1/30/2017 W 1/17/2017 1/17/2017 7 WW 4/5/2017 7/31/2017 L 5/19/2017 7/31/2017 7 WW 4/5/2017 7/31/2017 M 5/19/2017 7/31/2017 7 WW 4/5/2017 7/31/2017 U 5/28/2014 7 WW 4/5/2017 7/31/2017 U 11/26/2014 8 FF 9/18/2017 4/30/2018 R 9/18/2017 6/7/2018 8 FF 9/18/2017 4/30/2018 Z 9/25/2015 8 FF 9/18/2017 4/30/2018 U 3/12/2014 8 FF 9/18/2017 4/30/2018 U 9/23/2015 8 FF 9/18/2017 4/30/2018 D 9/18/2017 6/7/2018 9 FF 3/20/2017 8/31/2017 R 1/26/2017 8/3/2017 9 FF 3/20/2017 8/31/2017 D 1/26/2017 8/3/2017 9 FF 3/20/2017 8/31/2017 R 8/4/2017 9/19/2017 9 FF 3/20/2017 8/31/2017 D 8/4/2017 9/19/2017 10 JJ 10/16/2017 10/31/2017 T 10/19/2017 12/7/2017 10 JJ 10/16/2017 10/31/2017 E 10/17/2017 12/7/2017 10 JJ 10/16/2017 10/31/2017 R 7/7/2017 10/16/2017 10 JJ 10/16/2017 10/31/2017 W 10/18/2017 12/7/2017 10 FF 7/7/2017 10/15/2017 R 7/7/2017 10/16/2017 10 FF 7/7/2017 10/15/2017 D 7/7/2017 10/11/2017 11 JJ 6/22/2017 E 10/30/2017 12/13/2017 11 JJ 6/22/2017 W 10/30/2017 12/12/2017 11 JJ 6/22/2017 W 12/13/2017 2/6/2018 12 FF 12/29/2017 5/31/2018 R 6/29/2017 12/29/2017 12 FF 12/29/2017 5/31/2018 U 7/26/2016 12 FF 12/29/2017 5/31/2018 Q 7/26/2016 12 FF 12/29/2017 5/31/2018 W 7/6/2017 12/29/2017 12 FF 12/29/2017 5/31/2018 X 8/4/2016 2/6/2018 12 C1 9/11/2017 12/28/2017 R 6/29/2017 12/29/2017 12 C1 9/11/2017 12/28/2017 U 7/26/2016 12 C1 9/11/2017 12/28/2017 Q 7/26/2016 12 C1 9/11/2017 12/28/2017 W 7/6/2017 12/29/2017 12 C1 9/11/2017 12/28/2017 X 8/4/2016 2/6/2018 13 WW 6/28/2016 M 6/28/2016 13 WW 6/28/2016 S 6/28/2016 13 WW 6/28/2016 U 7/6/2015 13 WW 6/28/2016 U 11/23/2015 13 WW 6/28/2016 U 6/20/2016 14 FF 12/13/2017 3/23/2018 R 12/4/2017 3/23/2018 14 FF 12/13/2017 3/23/2018 D 12/4/2017 3/23/2018 14 CC 11/3/2017 12/12/2017 R 12/4/2017 3/23/2018 14 CC 11/3/2017 12/12/2017 A 11/3/2017 12/4/2017 14 CC 11/3/2017 12/12/2017 D 12/4/2017 3/23/2018 15 JJ 3/28/2017 10/31/2017 E 8/1/2017 11/1/2017 16 WW 12/22/2017 4/30/2018 N 12/22/2017 1/22/2018 16 WW 12/22/2017 4/30/2018 O 12/22/2017 1/22/2018 16 CC 11/3/2017 12/21/2017 16 JJ 10/15/2017 11/2/2017 Dataset I Want: ID Status StatusBeginDate StatusEndDate Course CourseBeginDate CourseEndDate 1 WW 5/3/2017 9/30/2017 C 4/19/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 E 8/16/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 P 4/19/2017 10/3/2017 1 WW 5/3/2017 9/30/2017 S 4/19/2017 11/7/2017 2 JJ 11/22/2017 2/16/2018 E 12/19/2017 2/27/2018 2 JJ 11/22/2017 2/16/2018 J 12/11/2017 12/15/2017 2 JJ 11/22/2017 2/16/2018 U 7/17/2017 2 JJ 11/22/2017 2/16/2018 W 12/18/2017 2/27/2018 3 C1 10/27/2017 10/30/2017 B 10/17/2017 10/29/2017 3 C1 10/27/2017 10/30/2017 X 10/30/2017 10/30/2017 4 JJ 12/25/2017 3/1/2018 W 12/26/2017 2/25/2018 4 JJ 12/25/2017 3/1/2018 X 12/20/2017 1/29/2018 5 CC 12/1/2017 12/7/2017 A 10/25/2017 12/7/2017 5 JJ 12/8/2017 E 12/28/2017 1/25/2018 5 JJ 12/8/2017 W 12/28/2017 1/24/2018 6 JJ 1/31/2017 1/31/2017 6 CC 12/6/2016 1/30/2017 W 1/17/2017 1/17/2017 7 WW 4/5/2017 7/31/2017 L 5/19/2017 7/31/2017 7 WW 4/5/2017 7/31/2017 M 5/19/2017 7/31/2017 7 WW 4/5/2017 7/31/2017 U 11/26/2014 8 FF 9/18/2017 4/30/2018 D 9/18/2017 6/7/2018 8 FF 9/18/2017 4/30/2018 R 9/18/2017 6/7/2018 8 FF 9/18/2017 4/30/2018 U 9/23/2015 8 FF 9/18/2017 4/30/2018 Z 9/25/2015 9 FF 3/20/2017 8/31/2017 D 8/4/2017 9/19/2017 9 FF 3/20/2017 8/31/2017 R 8/4/2017 9/19/2017 10 FF 7/7/2017 10/15/2017 D 7/7/2017 10/11/2017 10 JJ 10/16/2017 10/31/2017 E 10/17/2017 12/7/2017 10 JJ 10/16/2017 10/31/2017 R 7/7/2017 10/16/2017 10 JJ 10/16/2017 10/31/2017 T 10/19/2017 12/7/2017 10 JJ 10/16/2017 10/31/2017 W 10/18/2017 12/7/2017 11 JJ 6/22/2017 E 10/30/2017 12/13/2017 11 JJ 6/22/2017 W 12/13/2017 2/6/2018 12 FF 12/29/2017 5/31/2018 Q 7/26/2016 12 FF 12/29/2017 5/31/2018 R 6/29/2017 12/29/2017 12 FF 12/29/2017 5/31/2018 U 7/26/2016 12 FF 12/29/2017 5/31/2018 W 7/6/2017 12/29/2017 12 FF 12/29/2017 5/31/2018 X 8/4/2016 2/6/2018 13 WW 6/28/2016 M 6/28/2016 13 WW 6/28/2016 S 6/28/2016 13 WW 6/28/2016 U 6/20/2016 14 CC 11/3/2017 12/12/2017 A 11/3/2017 12/4/2017 14 FF 12/13/2017 3/23/2018 D 12/4/2017 3/23/2018 14 FF 12/13/2017 3/23/2018 R 12/4/2017 3/23/2018 15 JJ 3/28/2017 10/31/2017 E 8/1/2017 11/1/2017 16 WW 12/22/2017 4/30/2018 N 12/22/2017 1/22/2018 16 WW 12/22/2017 4/30/2018 O 12/22/2017 1/22/2018 16 CC 11/3/2017 12/21/2017 16 JJ 10/15/2017 11/2/2017
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