• Constraint and Active DB 17
• Constrained Optimalities 1
• Cardinality Bounds 1
• Memory Usage in Highly Constrained Devices 1
• Constraint Query Language 2
• Aggregate Languages 1
• Temporal, Spatial, Geogrpahic DBs 8
• Events, Conditions, Derived Data 1
• DB Languages and Models 19
• Relational 8
• Semi-Structured 7
• Memory Layout 1
• Architecture for Hardware 3
• Parallel and Distributed DB 21
• Middleware 4
• Online B-Tree merging 1
• Managing Inconsistencies in Databases 2
• Network Query Processing 3
• Grid Databases 3
• Nearest Neighbor 5
• Aggregation 2
• Semi-Structured and XML Database 54
• XQuery 14
• Duplicates 3
• Supporting Navigation 5
• Lazy Updates 1
• Efficiency 2
• Relational Combined with XML 8
• Structural Indexing 3
• Query Rewriting 3
• Streams and Stream Based Processing 20
• Caching 1
• Joining 3
• Aggregation 2
• Mining 4
• Fault-Tolerance 1
• Rate Based Optimization 1
• Stochastic 2