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changeset 367:d44eba0db517

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creating a file with SQL code samples
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Mon, 15 Jul 2013 12:13:08 -0400
parents 90bdabc06e9f
children 2db4e76599a1
files scripts/examples.sql
diffstat 1 files changed, 4 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/examples.sql	Mon Jul 15 12:13:08 2013 -0400
@@ -0,0 +1,4 @@
+
+
+# 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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