MySQL is an open source relational database system that, like Linux, started its history as a personal side project. Over its 25 years of history, MySQL has gained significant traction, and today a broad range of companies, such as Sony and Uber, use it to run their...
Redis is a lightning-fast, distributed, in-memory key-value database. While Redis usually isn’t used as a primary data store, it’s often used as a fast cache in areas of applications where performance is paramount. As an in-memory key-value database, Redis is much...
Elasticsearch started out as a wrapper for Apache Lucene, an open source search and index engine. Over time, it evolved into a full-featured, distributed document data store and now is the most popular enterprise search engine and database in the industry....
When you first start working with InterSystems IRIS, it’s a common practice to install a system with only a minimum level of security. You have to enter passwords fewer times and this makes it easier to work with development services and web applications when...
Introduction In the first article in this series, we’ll take a look at the entity–attribute–value (EAV) model in relational databases to see how it’s used and what it’s good for. Then we’ll compare the EAV model concepts to globals....
