Question

I have a table that has the following columns

table: route
columns: id, location, order_id

and it has values such as

id, location, order_id
1, London, 12
2, Amsterdam, 102
3, Berlin, 90
5, Paris, 19

Is it possible to do a sql select statement in postgres that will return each row along with the id with the next highest order_id? So I want something like…

id, location, order_id, next_id
1, London, 12, 5
2, Amsterdam, 102, NULL
3, Berlin, 90, 2
5, Paris, 19, 3

Thanks

Answer 1

select 
  id, 
  location, 
  order_id,
  lag(id) over (order by order_id desc) as next_id
from your_table