Mercurial > hg > nsaunier > traffic-intelligence

diff scripts/examples.sql @ 614:5e09583275a4

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Merged Nicolas/trafficintelligence into default
author Mohamed Gomaa <eng.m.gom3a@gmail.com>
date Fri, 05 Dec 2014 12:13:53 -0500
parents d44eba0db517
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/examples.sql	Fri Dec 05 12:13:53 2014 -0500
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+
+# 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;
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