[Libreoffice-bugs] [Bug 130532] Relationship graph does not show up one to one relationship

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=130532

Robert Großkopf <robert at familiegrosskopf.de> changed:

           What    |Removed                     |Added
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                 CC|                            |robert at familiegrosskopf.de

--- Comment #1 from Robert Großkopf <robert at familiegrosskopf.de> ---
Please add an example and a description, which could be followed step by step.
Special the SQL-code ...

Note: A one-to-one relationship is a relationship, which will connect the
primary-keys of the two tables. You have to set the relation from the table,
which should contain all key-values, to the table, which should contain only
some key-values.

If you create a connection from a PK to a FK it will always be seen as 1:n,
because there will be rows in the second table without any connection to the
first, because the FK could be NULL.

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