Hello Marcel,
 
thanks for your quick reply but that is not what I've asked.
I said: It shouldn't be possible to assign a (one) cateogory to an article twice.
 
For example you have an article. What sense would it make to assign the category "Kites" TWO TIMES to this article?
 
Best regards,
Hans Peter
 
 
Gesendet: Donnerstag, 20. März 2014 um 10:31 Uhr
Von: "Marcel Müller" <[email protected]>
An: [email protected]
Betreff: Re: [oxid-dev-general] No unique indices in oxobject2* tables
Hello Hans Peter,
 
for categories it’s correct that there is no key because it’s n:m.
 
Here the scenario: An article is in category „Clothes“ AND in category „Shirt“ … 
btw: every article has a main category which indicates as oxpos = 0


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Am 20.03.2014 um 10:22 schrieb Hans-Peter Szcazmus <[email protected]>:
 
Dear developers,
 
why are there no unique indices in the oxobject2* tables?
 
Example for oxobject2category:
It shouldn't be possible to assign a cateogory to an article twice.
With a pure MySQL INSERT statement that would be possible.
Wouldn't it make sense to create a unique index with OXOBJECTID and OXCATNID?
 
Best regards,
Hans Peter
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