[nycphp-talk] Database, table, and column naming schemes
Kristina D. H. Anderson
ka at kacomputerconsulting.com
Sun Sep 13 21:46:25 EDT 2009
OK. Is login_id equivalent to customer_id, or is it generated anew
upon each login and then associated with a customer profile? Does
each customer have only 1 account?
Kristina
> Right. I want to do it that way on purpose. Because where I tie the
accounts together is by login id. But most of the time the customer
information changes per account even if its the same person.
>
> -----Original Message-----
> From: "Kristina D. H. Anderson" <ka at kacomputerconsulting.com>
>
> Date: Sun, 13 Sep 2009 17:40:45
> To: NYPHP Talk<talk at lists.nyphp.org>
> Subject: Re: [nycphp-talk] Database, table, and column naming schemes
>
>
> You could have a table account_type which has primary key
> account_type_id, and a table account which has primary key account_id
> and then a lookup field in account which holds the relevant
> account_type_id...
>
> That way in table customer you just need a lookup field on account_id
> because there is already a relationship in place to find the type of
> account based on that value...I think that's what Tedd just said in
> essence as well.
>
> Although this structure is certainly presupposing that each customer
> has only one account.
>
> Kristina
>
> > At 11:56 AM -0400 9/13/09, Matt Juszczak wrote:
> > >>Plus, if you're going to be consistent with that "mistake", then
> > >>your naming should be:
> > >>
> > >>customer_customer
> > >>customer_account
> > >>customer_account_type
> > >
> > >I disagree. I wasn't trying to create "customer" as a prefix. I
> > >was simply renaming the tables based on the one:many relationships
I
> > >have inside the tables.
> > >
> > >account
> > >account_type
> > >customer
> > >
> > >since customer stores an account_id, and account stores an
> > >account_type id, I could have picked customer to be the main level
> > >table, and just references out from there:
> >
> > Mat:
> >
> > Main level table?
> >
> > I think that's one of the problems. There is no main level table --
> > there are just tables. It should not make any difference if you are
> > addressing customers, accounts, account_types, emails, or whatever.
> > They are nothing more than data and each has there own
relationships.
> >
> > Also, I think I see another problem. The account table holds the
> > account_type, right?
> >
> > If so, then your customer table should only contain the account_id,
> > but NOT the account_type_id -- that's redundant.
> >
> > To access what account-type the customer has means you pull the
> > account_id from the customer table -- then look up that account
> > (using the account_id ) in the account table -- then pull the
> > account_type_id and then find the account-type via it's id
> > (account_type_id) from the account type table. Understand.
> >
> > customer: account_id
> > account: account_type_id
> > account_type: type
> >
> > In any event, that's the way I would do it.
> >
> > Cheers,
> >
> > tedd
> >
> > --
> > -------
> > http://sperling.com http://ancientstones.com
http://earthstones.com
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