Re: Antw: many-many mapping between unique tables
От | Indraneel Majumdar |
---|---|
Тема | Re: Antw: many-many mapping between unique tables |
Дата | |
Msg-id | Pine.SGI.3.96.1001016143854.121309D-100000@www.cdfd.org.in обсуждение исходный текст |
Ответ на | Antw: many-many mapping between unique tables ("Gerhard Dieringer" <DieringG@eba-haus.de>) |
Список | pgsql-sql |
Thanks, I too came to the same conclusion (due to lack of persistence/patience). Thanks, Indraneel On Mon, 16 Oct 2000, Gerhard Dieringer wrote: > I don't know what type of data your columns x and y contain. If they are, > for example, of type text and contain long strings, then it would be better > to add an integer id column in each tables T1 and T2: x_id and y_id and > use these ids in the table T12. > > Then you only have to repeat the (short) numeric vales in T12. But I think there > is no way to totaly avoid any repetition. > > -------------- > Gerhard > /************************************************************************. # Indraneel Majumdar ¡ E-mail: indraneel@123india.com # # Bioinformatics Unit (EMBNET node), ¡ URL: http://scorpius.iwarp.com # # Centre for DNA Fingerprinting and Diagnostics, # # Hyderabad, India - 500076 # `************************************************************************/
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