How to add different data types in Linked list?

The basic idea is that I want to implement a linked list like the one which we generally implement in C. I need to store different data types in a single node. Is it possible to implement like this or I have to implement a linked list for each different data type?

I have an application program in which there is a form. In this form there are different text fields in which data is to be inserted by the user. These data's will be inserted into the database. I want to hit the database only once. So I need to store these data in a data structure before I insert into the database. I think it will be easy for me to handle the data in a linked list if I can have different data types in a single node.
Moreover, I think u're not getting my question. This pic will help u.
http://img522.imageshack.us/img522/4500/sampler.jpg
I'm not sure about that the code which u have written will have different data types in single node. I have to try that.
And of course if anyone has any better idea than me, it will be very helpful.

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[pic here |http://gerardnico.com/wiki/_detail/epm/hyperion_epm_system_configurator_database_registry.jpg?id=epm%3Aepm_installation]
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PIC HERE
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Edited by: UOOLK on 02-Aug-2011 07:31
Edited by: UOOLK on 02-Aug-2011 07:32

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[svn] 1455: add sql date types and custom serialization tests

Revision: 1455
Author: [email protected]
Date: 2008-04-29 11:56:59 -0700 (Tue, 29 Apr 2008)
Log Message:
add sql date types and custom serialization tests
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