Keyphrases
- xml views
- relational schema
- relational data
- relational databases
- entity relationship
- functional dependencies
- normal form
- xml schema
- relational database systems
- object oriented
- conceptual schema
- database schema
- relational model
- xml documents
- transformation rules
- xml data
- schema mappings
- data model
- database design
- conceptual model
- integrity constraints
- conceptual models
- database
- relational algebra
- xml queries
- query rewriting
- structured data
- database management systems
- management system
- databases