SCHEMA VERSIONING IN A TEMPORAL OBJECT-ORIENTED DATA MODEL
1998 ◽
Vol 07
(03)
◽
pp. 293-318
Keyword(s):
This paper proposes a means for schema versioning in a temporal, object-oriented data model called TOODM. A data definition language (DDL) is developed to describe evolving schema definitions. This DDL incorporates the concept of time sequences to store histories of a schema's properties. Update and retrieval operators for the manipulation of the schema are also developed. The data model has been implemented as a graphical front-end to POSTGRES.
1997 ◽
Vol 3
(2)
◽
pp. 103-125
◽
1990 ◽
2012 ◽
Vol 246-247
◽
pp. 744-748
Keyword(s):