Le 11/02/13 15:18, Uwe Brauer a écrit :
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)
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[libreoffice-users] Re: LO 4.0: intrinsic database: relations only between primaries keys? · Alexander Thurgood
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