About this document
Relational Algebra in Database Design by Nguyễn Phan Vĩnh is a document available to read on EtoBox.
The document discusses relational algebra operations including selection, projection, Cartesian product, joins, and set operations. Selection allows filtering tuples that satisfy a predicate, projection selects certain columns and discards others. Cartesian product combines all tuples from two relations. Joins match tuples from two relations based on a condition. Outer joins include unmatched tuples with null values. Union combines tuples from relations while intersection finds tuples that are in both relat
- Author
- Nguyễn Phan Vĩnh
- Language
- EN