One apex application, multiple different users

Hi all,
I'm developing an application that will be used by multiple different companies, all with their own data. As far as I can see, there are three different approaches for this:
- make different applications with different schemas in apex, for each company one
- 1 application, 1 schema, and distinct the data by using a key for each company in the tables
- 1 application, multiple schemas, for each company its own schema
I'm not that experienced in apex, so I don't know what the best approach is for this. Personally, the third option seems the best one for me. But is it difficult to make, and what about security? How can I make sure one company don't get to see data from another company?
I hope my question is clear and I'm looking forward for your comments!
Tom

Nope I wouldn't necessarily agree with that; 1 Application and 1 Schema will give you a much lower maintenance overhead. If you have a database licence then you can use Oracle Virtual Private Database (VPD) to secure the DATA for each organisation:
http://www.oracle.com/technology/obe/obe10gdb/security/vpd/vpd.htm
There is an excellent example of VPD and Apex in the 'PRO ORACLE APPLICATION EXPRESS' book.
This approach to application design will also help:
http://www.oracle.com/technology/pub/articles/bobrowski-saas.html
Good luck
Shunt

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I set up my new computer using the apple ID i always use, and then later migrated all my files from my old mac book to the same new one, but under a different user (same ID). how do i consolidate the two users on my new mac book?

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Well if you use the Finder Go menu to Computer, a window opens up double click on your boot drive and then on Users folder, open the other user folder and open Public and drop your files into DropBox
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Hello, everyone.
I'm new on this world of Oracle solutions, and I would like
very much your help.
Here in my company I have five database servers, and I want to install
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I understand. But "his stuff" isn't on my machine so iTunes Match wouldn't find "his" music to match up. It's only on his machine.
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Khorsia wrote:
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