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Old 04-05-2011, 03:52 AM   #1
Registered: Aug 2005
Distribution: SuSE Linux / Scientific Linux / [K|X]ubuntu
Posts: 273

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MySQL: Multiple entries

Hi there!

I just started out trying to learn MySQL (and databases in general!), so I apologize if my question is very basic.

Right now I have a few tables, one of which contains a list of clients with contact details and the usual stuff, and another that has a list of projects that these clients are involved in (with details on the project, deadlines, etc.).

Per project there is a field for clients, where I would like to add the name of the clients, but the problem is that there are a couple of projects that have several clients from my list. Can I simply put multiple entries in one field (how?), or should I find some other way?

Another way is to add a field for the clients with a list of projects they are involved in but they can be involved in more than one project, so the problem remains, or do I need a different approach? I thought about a new table with project IDs and client IDs but that seems so inconvenient...

Thanks. I appreciate any help you can give!

P.S.: Obviously the number of entries is limited by the total number of clients in my table, but usually I don't think that would be a concern.

Last edited by unihiekka; 04-05-2011 at 04:05 AM.
Old 04-05-2011, 04:11 AM   #2
Registered: Aug 2005
Distribution: SuSE Linux / Scientific Linux / [K|X]ubuntu
Posts: 273

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Ah, I have just been reading on database normalization, and it seems that I suffer from what is known as "Spreadsheet Syndrome". Well, off to create additional tables to make them all nice and normalized!
Old 04-05-2011, 05:14 AM   #3
Registered: Mar 2011
Location: Belgium
Distribution: CentOS release 5.5 (Final), Red Hat Enterprise Linux ES release 4 (Nahant Update 8)
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if you find your answer yourself, pls mark this thread as solved


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