Keyphrases
- database
- query language
- relational databases
- sql queries
- relational tables
- databases
- relational model
- relational data model
- data types
- semantic relations
- cd rom
- database management
- database applications
- back end
- background knowledge
- structured query language
- relational algebra
- relational database systems
- database queries
- relational calculus
- sql database
- data model and query language
- database language
- database programming
- relational database management systems
- data modeling
- spatial relations
- database design
- database systems