![]() Graph databases are used to store information about networks, such as social connections.Documents can contain many different key-value pairs, or key-array pairs, or even nested documents. Document databases pair each key with a complex data structure known as a document.Cassandra and HBase are wide-column databases. Wide-column stores store columns of data together instead of rows and are optimized for queries over large datasets.Examples include Riak, Voldemort, and Redis. Every single item in a key value database is stored as an attribute name (or "key") together with its value. Key-value stores are the simplest NoSQL databases.There are four types of NoSQL database management systems: Most aspects of these NoSQL technologies vary greatly and have little in common except for the fact that they do not use a relational data model. NoSQL databases have emerged in recent years as an answer to the limitations of traditional relational databases and to provide the performance, scalability and flexibility required of modern applications. Developers need solutions that align with the realities of modern data and iterative software development practices.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |