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Relational databases are not designed to run efficiently on clusters("NoSQL Databases: An Overview", 2014). No SQL has four major types of databases which include; Key-value databases, document databases, column family stores and graph databases. Key-value databases are a single NoSQL data store looking at it from an API perspective. The client can get the value of the key, key in a value of the key and delete a value from the data store. Key-value stores use primary key access. Each column family is similar to a container of rows in a relational database management system table where the key identifies the row consisting of many columns. Rows do not have to contain the same number of columns, and a column can be added to any row independently without affecting other rows. A super column is a map of columns. A super column consists of a value and a name. Column family databases are highly scalable and offer stellar performance.Add the columns to specified keys.The values of the same co...

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NoSQL Database Comparison

Young H
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6 in Computer Science

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