[Koha] Catalogueentry table

[Fabien Olivry]

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Hi,

I'm currently importing data to Koha in order to put our libray online. I have 
to convert an old database via Access and ODBC to import it into Koha. I 
would like to know a bit more about the way subjects are connected.
I've done an import into the bibliosubject table so far and it works but I 
would like my subjects to be interconnected and I guess the table 
catalogueentry does it. 
Most of the fields are pretty obvious (or so it seems) but I have a question 
about ENTRYTYPE, which is a varchar(2), what does it refer to? 
I guess that each book is described by is biblionumber and the subjects go in 
the fields catalogueentry, see, seealso, seeinstead...
Could someone give me a few explanations on this?
I would also need to know what classification in biblioitem is... Is it a 
general category like non fiction or something like this or ....???? Is it 
this classification that shows on the advanced search /cat page??

Thanks for any help you could provide,

Fabien
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