Store more than 3crore records

Hi..

I have a table -

ID	User	Email	Flag
1	abc	[email protected]	1
2	def	[email protected]	1
3	ghi	[email protected]	1

Now....
ID- PK - Auto Increment
User - PK
Email - PK
Flag - bit - 0 or 1 i.e. true or false
----
I have total of 3 crores records to be stored in this table..

And in future... the number will increase...

My query is -
Which database is proper - Oracle / SQL ??
Or should I store it in a file - NoSQL Concepts ?

How to make this ID - infinite... without upper limit ??

Please guide ! It is a bit urgent !