Keyphrases
- complex objects
- query language
- relational calculus
- database query languages
- indexing methods
- query evaluation
- invariant recognition
- path expressions
- relational algebra
- multiple range images
- efficient processing
- database
- relational model
- distance function
- multiple inheritance
- object representations
- query processing
- data structure
- relational database systems
- expressive power
- data model
- nested relations
- nearest neighbor
- data analysis
- class hierarchies