Well - if you own the source code, you can store any data type possible. You just have to reserve memory (with a special dll function) and copy your data there.
The functional structure in c++ is nearly the same as in c-script.

The demo version (without source) is limited to 4*4 = 16 data cells per (3 possible) tables.
[important!]
The limitations of the demo version are 1-4 cells per row / column, not 1-5 as written in the README.
I regret this, thought it was more..

You can store one variable, one vector or one (unlimited) string in each of these cells.
In c-script, of course.

The full version is not limited in cells per table, and also not in tables per database.

Encryption is not implemented yet, because its hard to find a way to crypt all possible byte structures. If you have a good solution, just say it. (Or wait for the full version and implement it yourself )