>> "Alexander" == Alexander Thurgood <alex.thurg...@gmail.com> writes:
> Le 11/02/13 15:18, Uwe Brauer a écrit :
> Hi Uwe,
>> Now I want to edit the relation and I am offered the possibility to add
>> more fields. So I select the notes file in either table but I receive
>> the following error.
>>
>> Primary or unique constraint required on main table. "Accounts"
>> in statement [ALTER TABLE "Tasks" ADD FOREIGN KEY
>> ("TaskId","Notes") REFERENCE "Accounts"("AccountI","Notes")]
>>
>> I am puzzled, in the intrinsic database only relations between
>> primary keys are possible?? Is this a property of the intrinsic
>> database, or is it a bug? I am thinking of submitting a bug
>> report.
>>
> The following possibilities occur to me :
> (a) you might need to drop your previously configured constraint
> before you can set up a new one via the GUI. From what I recall,
> this might only be possible manually, i.e. by issuing a SQL command
> (menu Tools > SQL) to DROP the CONSTRAINT from the tables, then
> shutting down the db file, closing LO completely and re-opening.
> (b) you might not be able to set combined constraints on more than one
> field in both tables simultaneously via the GUI - again you may
> find that you have to do this manually (although it may actually
> turn out to be a limitation of hsqldb 1.8, I haven't checked)
This is my impression. Even when I generate for the first time a
relation ship via the GUI, I can only have the primary keys, if I put
more field in the relation it fails.
And if I just set it up for the primary keys and later edit, same
result.
I think it is time for a bug report.
Uwe
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