sentence: - netezza objectstore oracle database -- all versions since oracle 4 orientdb postgresql rdb/eln rdm embedded real server rethinkdb sap hana scimoredb sones graphdb sybase sql anywhere sybase iq thinksql tibero -- all versions since tibero 3 tokumx zope object database other software with mvcc jboss cache -- v 3.0 ehcache -- v 1.6.0-beta4 clojure -- language software transactional memory pojo-mvcc -- a lightweight mvcc implementation written in java -- software transactional memory that implements the concept of proposed by joão cachopo and antónio rito silva , members of the version control systems any version control system that has the internal notion of a version ( e.g. subversion , git , probably almost any current vcs with the notable exception of cvs ) will provide explicit mvcc ( you only ever access data by its version identifier ) .