This flexibility makes it easy to append extra data to some documents while leaving others out, all without running into errors or null value constraints during queries or data entry. As a result, the data in each can be different in length and content. Nonetheless, documents in a collection are independent of each other and lack a definite structure. For instance, it might be a collection of users' data. Thus a collection in NoSQL may hold a particular group of information. These documents are individual JSON objects available as key-value pairs. In NoSQL, a collection is an aggregation of documents. But how can you set one up? Here's how.Īlso called non-SQL, NoSQL is a non-relational database design based on collections and documents rather than tables and rows as found in SQL. Some popular NoSQL databases include MongoDB, Cassandra, CouchDB, CouchBase, Riak, and HBase. Are you developing an app using NoSQL as your chosen database option, too? Then to test your app on your local server, you need to set up a NoSQL database on your PC. Due to its simple queries and flexible data models, NoSQL is steadily gaining popularity in the software industry.
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