Logical Semantics and Languages for Databases with Partial and Complete Tuples and Sets.
Mengchi LiuPublished in: DDLP (1998)
Keyphrases
- databases
- database
- null values
- database languages
- logical properties
- relational query languages
- logical language
- expressive power
- formal semantics
- aggregate functions
- database systems
- highly expressive
- relational databases
- logical framework
- logical theories
- database query languages
- language independent
- dynamic logic
- epistemic states
- data model
- closed world
- cross lingual
- logical rules
- formal language
- data integration
- data streams
- belief revision
- database applications
- model theoretic
- data sources
- binary relations
- relational model
- semantic information
- logic programming
- knowledge discovery