- Relational Algebra Operations Fundamental operations used to query and manipulate relations (tables). - Set-Difference (A - B) Result contains tuples in A that are not in B. - Cartesian Product (A x B) Result is a relation with |A| |B| tuples. - Union (A U B) Result contains tuples from A or B or both (union of tuples). - Intersection (A ∩ B) Result contains tuples common to both A and B.