What is the best practise for relational database tables in mysql?

Posted by George on Stack Overflow See other posts from Stack Overflow or by George
Published on 2010-06-15T19:51:38Z Indexed on 2010/06/15 19:52 UTC
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sql

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mysql

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relational-database

Hi,

I know, there is a lot of info on mysql out there. But I was not really able to find an answer to this specific and actually simple question:

Let's say I have two tables:

USERS (with many fields, e.g. name, street, email, etc.) and GROUPS (also with many fields)

The relation is (I guess?) 1:n, that is ONE user can be a member of MANY groups.

What I dis, is create another table, named USERS_GROUPS_REL. This table has only two fields:

us_id (unique key of table USERS) and gr_id (unique key of table GROUPS)

In PHP I do a query with join.

Is this "best practice" or is there a better way?

Thankful for any hint!

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