Keyphrases
- database schema
- relational databases
- data integration
- sql queries
- object oriented
- entity relationship
- databases
- database
- functional dependencies
- integrity constraints
- xml databases
- big data
- normal form
- data exchange
- structured query language
- schema evolution
- data management
- data model
- schema mappings
- database systems
- decision support
- database language
- high level
- relational database systems
- xml documents
- keyword search
- query answering
- data sources
- training data
- domain specific
- information retrieval
- semantic information
- data mining