> I created one firebird database with only this table inside and with 1
> million entries; the size is by calculus is 9.54 MegaiBytes but the

real

> size is 70 MegaIbytes.

Perform a backup/restore using "Use full page" option on the restore, to
see the true size of the database.

> * Windows system does not accept file size higher than 32 GB.

Not true!

Windows NTFS has a maximum filesize of 2^44 bytes - 64 KB -> ~16TB


Sean