Tabular form with a metric/imperial selector

Hi,
Oracle 10g database and APEX 3.2.
I have a tabular form based on a simple query (SELECT rock_type, depth FROM rock_samples) with an editable "depth" field. The user cannot add or remove records, but can make updates to that one field. MRU process is handling that.
The underlying table "rock_samples" stores "depth" in meters.
I need to somehow allow the user to select either metric system (meters) or imperial (feet). Based on that selection the displayed deths should change. However, regardless of the selection the updated values should be saved as meters.
Any suggestions on how to implement this would be most welcome, as I cannot think of anything.
Thanks,
Constantine

Hi Constantine,
Sorry my code was slightly confusing. :P1_SELECTOR would be the name of your selector with "Metric" and "Imperial" in it, and this would have to submit the page on select. You can still use the decode in your select statement to display the initial value.
SELECT col1, col2, DECODE(:P1_SELECTOR, 'M', depth, 'I', (depth*3.2808399)) depth_result
from table_nameSaves/Inserts will be trickier. This could probably done with Javascript, but seems like it would be best handled by a trigger just before insert/update on your table. But then you need a way of knowing if the :NEW values are in Metric or Imperial, so you would need a "dummy" value or flag in your table that the incoming values are in Imperial and need converting to Metric.
Hope this helps,
Aaron

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