X-Time: Schema Versioning and Cross-Version Querying in Data Warehouses

In this demo we present X-Time, a prototype for managing schema versioning in relational data warehouses, specifically oriented to support the formulation of crossversion queries, i.e., queries whose temporal horizon spans multiple versions. The key issue to increase querying flexi

• Type: Conference
• Year: 2007
• Where: ICDE
• Authors: Stefano Rizzi, Matteo Golfarelli
• Keywords: Database, ICDE 2007, Relational Data Warehouses, Temporal Horizon Spans