Which collection is best for storing millions of records?

Hi
I am retriving 30000 records from DataBase and store it into collections and then fetch the values from collections then display the values in JTable..
For the above scnario which collection framework is best..
Bcoz the records may be millions in future..
So it wont affect performance etc..
Thanks

Thanks for ur reply..
Before going to display in JTable, i need to store the datas in some collections.
Bcoz architecture is like that only.
i.e, Database routins are handled in seperate class and GUI components are handled in seperate class.
So i have to fetch from db and store it into collections and return the collections and then diplay the same in Swing GUI..
Any Idea?
Thanks

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Which collection is best for storing millions of records?

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