Skip to main content

New answers tagged

3 votes

SpatiaLite Equals function vs the standard ‘=‘ operator

ST_Equals checks if the two geometries are topologically equivalent, so "occupy the same space". The equals operator checks if the geometries are exactly the same. Some practical examples of ...
Pieter's user avatar
  • 2,749
1 vote

QGIS - Synchronize polygons changes between layers

Thank you, your answer helped me to figure out what was going wrong. Here are the 2 triggers: CREATE TRIGGER I_rapat_zh_poly AFTER UPDATE OF CODE_ZH ON HABITATS_POLY FOR EACH ROW BEGIN ...
Giene's user avatar
  • 691
1 vote

QGIS - Synchronize polygons changes between layers

You can use an Update statement in a Trigger similar to your 1. Here's an example as an SQL statement that you can adapt with a trigger and your specifics. I have two layers poly1 and zhpoly with ...
Kasper's user avatar
  • 3,352

Top 50 recent answers are included