libdb2 2:2.7.7.0-9ubuntu1 (amd64 binary) in ubuntu breezy

The Berkeley database routines (run-time files)
 libdb2 is a library for manipulating database files, developed at
 Berkeley and extended by Sleepycat Software Inc.
 This is an ancient, obsolete version.
 .
 It supports three kinds of file formats:
  * btree. A representation of a sorted, balanced tree structure.
  * hashed. An extensible, dynamic hashing scheme.
  * UNIX file oriented. A byte stream file with fixed or variable
    length records.
 Other core database services:
  * page cache management for fast access, clean page allocation.
  * lock with multiple reader/writer granularity.
  * nested transaction support with logging and rollback recovery
    (two phase commit).
  * Large set of utilities, to dump/load/restore data and examine log.