Percona, a leader in enterprise-grade open source database software, support, and services, is launching Percona Packages, a suite of structured consulting and support offerings for enterprise IT and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Dr. JeFreda R. Brown is a financial ...

The history of computers began with primitive designs in the early 19th century and went on to change the world during the 20th century. When you purchase through links on our site, we may earn an ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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