![]() Word documents are not Document Stores, he joked. They include a primary key, an optional secondary key, and anything stored as a value.ĭocument Stores contain data objects that are inherently hierarchical, tree-like structures (most notably JSON or XML). “Wide-Column Stores are fast and can be nearly as simple as Key-Value Stores,” he remarked. Anything can be stored as a value, as long as each value is associated with a key or name. According to Serra, Key-Value Stores offer very high speed via the least complicated data model. ![]() In today’s market the numerous commercial offerings have created a number of platforms that actually combine different data models into one system. There are many different kinds of non-relational stores Serra gave an overview of the main types.
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