RE: Joining several tables

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От Michael Davis
Тема RE: Joining several tables
Дата
Msg-id 01C08462.886C1520.mdavis@sevainc.com
обсуждение исходный текст
Ответ на Joining several tables  (Stephan Richter <srichter@cbu.edu>)
Список pgsql-sql
1) Select t1.* from table_1 t1, table2 t2 where t1.column = t2.column;
2) Select t1.* from table_1 t1 join table2 t2 on t1.column = t2.column;


-----Original Message-----
From:    Stephan Richter [SMTP:srichter@cbu.edu]
Sent:    Sunday, January 21, 2001 11:20 PM
To:    pgsql-sql@postgresql.org
Subject:    Joining several tables

Hello, I have the following situation:

I have an Address, PhoneNumber and Contact table all having a contactid in 
common, but sometimes the phone number does not exist.

I want to join these three tables. How do I do that? I could not find the 
syntax for multiple tables...

Regards,
Stephan
--
Stephan Richter
CBU - Physics and Chemistry Student
Web2k - Web Design/Development & Technical Project Management



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