[Qgis-user] Update second table
chris hermansen
clhermansen at gmail.com
Fri Nov 13 08:02:56 PST 2020
L.W. and list
On Fri, Nov 13, 2020, 06:39 L.W. <eaglelw at gmx.de> wrote:
> hi,
>
> can I update a second table autom. if the value of first table changes?
>
This is pretty easy if the tables are in a relational database. You use a
thing called a trigger, perhaps together with a stored procedure.
It seems that SQLite has triggers so I imagine you can do this within a
geopackage. Certainly if your data is in PostGIS / PostgreSQL.
Chris
>
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