Mercurial Hosting > traffic-intelligence
view scripts/examples.sql @ 1129:e257643b1d0e Etienne-Beauchamp/added-d-optional-argument-1581358671588
forgot the conditional case
author | Etienne Beauchamp <etienne-2.beauchamp@polymtl.ca> |
---|---|
date | Mon, 10 Feb 2020 18:46:24 +0000 |
parents | d44eba0db517 |
children |
line wrap: on
line source
# get object id, first and last frame numbers, length and number of features select OF.object_id, min(P.frame_number) as frame1, max(P.frame_number) as frame2, max(P.frame_number)-min(P.frame_number) as length, count(OF.trajectory_id) as nfeatures from positions P, objects_features OF where P.trajectory_id = OF.trajectory_id group by OF.object_id order by nfeatures asc;