Hello,
How can i create a new field with null values if a column is different between the rows and keep only these with same value group by a specific column..
Lets say we have,
GroupID Name
1 A
2 B
2 B
2 C
3 T
3 T
3 T
3 T
4 W
5 K
5 N
I would like this
GroupID Name NewColumn
1 A A
2 B NULL
2 B NULL
2 C NULL
3 T T
3 T T
3 T T
3 T T
4 W W
5 K NULL
5 N NULL
How can i create this new column?
Thanks