Mercurial Hosting > traffic-intelligence
annotate scripts/examples.sql @ 458:28ff95845c65
update to include speed limit
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
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date | Wed, 19 Feb 2014 17:46:26 -0500 |
parents | d44eba0db517 |
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d44eba0db517
creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
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changeset
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1 |
d44eba0db517
creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
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2 |
d44eba0db517
creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
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3 # get object id, first and last frame numbers, length and number of features |
d44eba0db517
creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
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4 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; |