...Advantage of Moelnir is that each record is stored in a continuous
segment on the file while still record size is limit-less variable
and modifiable. There are no data length limits other than the range of a
63-bit unsigned integer. Scalability is limited to 1 - 10 Mio. entries due to
non-paging internal structures.
XTEA (eXtended Tiny Encryption Algorithm) support for db4o open source object database. XTEA is a block cipher that operates on a 64-bit block size with a 128-bit key. An extremely tiny but very fast encryption algorithm (with cycles less than 32 rounds)
SimpleSQL is a 64-bit relational database, works as a standalone server-free db. component and transactional db. server, with standard SQL and JDBC, has portable single db. file, first db. available in Java and C++.