Wiele do wielu

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#82554

From: Borneq
Date: Sun, 16 Aug 2015 08:30

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Jedna książka może mieć wielu autorów, jeden autor wiele książek. Oprócz 
tabel BOOKS i AUTHORS potrzebna tabela BOOKS_AUTHORS, ale jak to będzie 
wyglądało dla:
book1 - auth1
book2 - auth2,auth3
book3 - auth1,auth3
book4 - auth1,auth4
book5 - auth2,auth3,auth4

BOOKS ma 5 pozycji , AUTHORS 4 a BOOKS_AUTHORS?

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From: Borneq <borneq@antyspam.hidden.pl>
Newsgroups: pl.comp.lang.delphi.bazy-danych
Subject: Wiele do wielu
Date: Sun, 16 Aug 2015 10:30:07 +0200
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