Multi-version Concurrency Control (MVCC)
InterBase implements Multi-Version Concurrency Control (MVCC) and refers to it as Multi-Generational Architecture.
Run-Length Encoding Prefix Compression
In index, data values are compressed via pre and postfix compression.
http://www.embarcadero.com/products/interbase
Embarcadero Technologies, Inc.
1984
Groton Database Systems, Yaffil
Ashton-Tate, Borland