Hello everybody

- I have a table called CAB
- CAB has a primary key on column ID_CAB
- I have a table called DET
- DET has a foreign key to the column ID_CAB of CAB
- Now, I want to have a computed column in DET, using a column of DET and a
column of CAB, something as: TOTALX is CAB.COUNT * DET.PRICE
- But I cannot do that, the message "column unknown" is showed.

There is some way to do that?

Thanks in advance.

Walter.


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