Best performance for storage

[Filip Nelis]

Dears,

I'm starting on a new project which has a lot of data (millions of entries) I'd like to store in an easily and quickly accessible format.
By quickly I mean one insert/select of +- 50000 rows should be executed in less than a second.

Does someone has any idea of which persistence form could do this job?

Thanks,

Filip

[Mike Peters]

If performance is most important and you don't need transaction control, querying and such, then a simple file format will probably be the fastest.