Patent for Oracle’s Sorting Algorithm Expired; Now Available in the Public Domain. Oracle is one of the most popular database products in the world. Highly complex applications rely on Oracle for their critical data and transactions. Oracle has had to invent many optimisation techniques so that its database becomes faster and more reliable. One of those inventions is a sorting technique for database tables. Oracle invented an algorithm named Orasort, which made sorting 5x faster. The Oracle team...