Re: Defining child Entities.
Re: Defining child Entities.
- Subject: Re: Defining child Entities.
- From: Stefan Klein <email@hidden>
- Date: Tue, 11 Aug 2009 12:38:08 +0200
Hi Gustavo,
you need only one entity.
Area:
area_pk
parent_area_fk
foo
Now you build a relationship area_pk <->> parent_area_fk.
So each area can have many 'subareas' while one are has only one parent
area.
Stefan
Gustavo Pizano schrieb:
Hello Im doing an eomodel.. .and I have an entity called
Area, and SubArea, for me an area can have many subareas, but subarea
its an area itself also..
so its like Area <- >>SubArea.
Now what are the implications of defyning Area with its properties, and
then SubArea and put as parent Area?... I see that inside Area Entity
there is SubArea Entity also... but I guess this doesn't guaranties me
the to-many relationship between the 2 entities isn't it?do I still
have t defying the relationship?
Thanks
Gustavo
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