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Hi! I’m making a database for me to keep track of my train delays and the compensations I need to request, have requested and are approved or declined.


I like to have an overview of the route I took. For this, I have two fields:



  1. Departure train station

  2. Arrival train station


Both have these two options in a single select:



  1. Antwerpen-Centraal

  2. Noorderkempen


Basically I want to only select the departure train station, and the formula should put the other option in the arrival train station. For example if I select “Noorderkempen”, the arrival train station should be set to “Antwerpen centraal”.


How would I achieve that? Thanks in advance!

The {Arrival Station} field could be a formula field with this formula:


SWITCH(
{Departure train station},
"Antwerpen-Centraal", "Noorderkempen",
"Noorderkempen", "Antwerpen-Centraal"
)

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