- Relational Algebra operations There are 5 basic operations in relational algebra Selection σ small sigma Projection π small pi Cartesian Product × Union ∪ Set Difference - Relational Algebra operations 3 additional operations can be made up from the previous 5 Join ⋈ Intersection ⋂ Division ÷ Relational Algebra operations Selection σ ...
- Relational Algebra •Relational algebra is a procedural language … operations that can be implemented by a database •SQL is non-procedural •We will consider some operators and the mapping of SQL Select to RA statements and to an RA tree. Ron McFadyen ACS-3902 1
- Relational algebra: obtaining the largest value Posted by Diego Assencio on 2014.03.17 under Computer science (Relational algebra) Using the basic operations of relational algebra (RA), it is possible to obtain the largest value assigned to a given attribute of a relation.

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