Software comprehension based on database relational algebra.
Sahel AlounehSa'ed AbedBassam Jamil MohdAhmad Al-KhasawnehPublished in: Int. J. Inf. Commun. Technol. (2014)
Keyphrases
- relational algebra
- query language
- database
- data model
- relational calculus
- relational database systems
- data manipulation
- relational data model
- expressive power
- relational model
- universal relation
- normal form
- null values
- relational databases
- database query languages
- databases
- complex objects
- database systems
- relational operators
- transitive closure
- database management systems
- relational algebra expressions
- query evaluation
- first order logic
- xml data
- aggregate functions
- machine learning
- incomplete information