I have order history table that tracks who worked on a order
ID. ColA. ColB. ColC
1. Process 1234
2. Work. 7666
3. Return. 6789
4. Work. Null Role1
5. Return. 6538
I want a query to return recent colB or ColC where colA or colB are not null. In this case row 4
I have order history table that tracks who worked on a order
Another example
ID. ColA. ColB. ColC
1. Work. 1234
2. Process. 7666
3. Return. 6789
I want a query to return most recent colB or ColC where colB or ColC are not null. In this case row 2
Can you please help