On Mar 13, 2012, at 14:29, "M. D." wrote:
> Hi,
>
> I want to do a check on a column if other columns meet certain conditions.
> The program I'm working with allows to create additional columns on every
> 'object' - called extra data, but I have no control over the program. I want
> to enfor
Hi,
I want to do a check on a column if other columns meet certain
conditions. The program I'm working with allows to create additional
columns on every 'object' - called extra data, but I have no control
over the program. I want to enforce the values on this one extra data
to be of type dat
