Best way to configure database access - direct or intermediary

Hi there all,
I'm brand new to Java but have done a fair bit of php
what is the best way to architect a multi user applications connection to a database (from both performance and reliability)
The way I see it I have 2 options:
Every client application has a built in database connection string and performs its own queries interacting directly with the database.
Or
Clients use sockets/web service (which is better?) to connect to a multi threaded server app that then handles the request and performs the SQL query on the database and returns the results
Thanks in advance
Tyrone

It's going to depend on your business model isn't it? Can you do client server or do you have to do n-teir?
Do you have middleware that you want to use and do you want any type of middle teir that keep business rules.
Can you make your DB visible to the end user or are you prohibited?
Generally: if you are going to expose to the web, then you want as much security between your data and the client as possible, so n-teir will win out there in many instances.

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http://www.cisco.com/en/US/docs/wireless/wlse/2.12/user/guide/deploywz.html#wp1936755

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Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
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