Management Of Schema Evolution In Databases

This paper presentsa version model which handlesdatabaseschemachangesandwhich takesevolution into account. Its originality is in allowing the development of partial schema versions, or views of a schema. These versions are created in the same databasefrom acommonschema.Wedefine the set of authorised modifications on a schemaand the rules which guarantee its coherenceafter transformation.Mechanisms allowing data to be associated with each version arealso integratedin themodel.

• Type: Conference
• Year: 1991
• Where: VLDB
• Authors: José Andany, Michel Léonard, Carole Palisser
• Keywords: Database, Paper Presentsa Version, Partial Schema Versions, Transformation.Mechanisms Allowing Data, VLDB 1991