Auto-increment field that resets after a change in another field

Question

Can you provide a very simple SQL example of how to create a \"count\" or \"order\" field that would auto-increment, but restart after every change in a different field? In

Answer 1

Instead of storing Order in the table, consider adding it to a view. You can select from the view instead of the table when you need it.

The view could use row_number() to calculate the order, like:

select  row_number() over (partition by Meal order by Time)
,       *
from    YourTable

Example at SE Data.