Relational calculus. Query processing and optimization. Transaction processing: failure, recovery, and concurrency. Database security. Logic-based systems. Parallel ...

Bob Muglia is something of a bard of databases, capable of unfurling sweeping tales in the evolution of technology. That is what Muglia, former Microsoft executive and former Snowflake CEO, did ...

The rules for combining and manipulating relations; for example De Morgan's law, "the complement of a union is equal to the union of the complements." THIS DEFINITION IS FOR PERSONAL USE ONLY. All ...