A Knowledge-Based System and an ER Query Language for Accessing Relational Databases.
Jean Philippe LagrangePublished in: ER (1990)
Keyphrases
- relational databases
- query language
- entity relationship
- object oriented
- relational model
- data model
- database
- relational algebra
- xml data
- stored in relational databases
- high level query language
- relational data
- expressive power
- entity relationship modeling
- keyword search
- functional dependencies
- structured query language
- xml documents
- relational operators
- database technology
- normal form
- recursive queries
- xml databases
- regular expressions
- query evaluation
- database design
- databases
- complex objects
- data modeling
- entity relationship diagrams
- sql queries
- conceptual schema
- constraint databases
- database systems
- relational data model
- inductive databases
- query interface
- sparql queries
- data dependencies
- rdf data
- transitive closure
- conceptual model
- data sources
- data types
- learning algorithm
- relational database management systems
- structured documents
- database management systems
- relational database systems
- language constructs
- knowledge base
- information retrieval
- data integration