Re: More Database Design Stuff
От | Josh Berkus |
---|---|
Тема | Re: More Database Design Stuff |
Дата | |
Msg-id | [email protected] обсуждение исходный текст |
Ответ на | Re: More Database Design Stuff ("Chris Ruprecht" <[email protected]>) |
Список | pgsql-sql |
Chris, > I don't really care if people say it's bad to do this kind of thing, > I like > to tell them that I will do what works for me, and there is usually > not much > to argue about that point ;). In most cases, simple surrogate keys (i.e. cust_id SERIAL) are the easiest things to deal with. However, there are many cases where a multi-column key can be superior. Fabian Pascal has an excellent disussion of evaluating the suitability of candidate keys in selecting a primary key in Practical Issues in Database Design. It may also be on his web site (http://www.firstsql.com/dbdebunk/). (Candidate keys are unique combos of information in a table that could be a primary key if you wanted) -Josh ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete informationtechnology [email protected] and data management solutions (415) 565-7293 for law firms, small businesses fax 621-2533 and non-profit organizations. San Francisco
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