The past 15 years have witnessed a massive change in the nature and complexity of web applications. At the same time, the data management tools for these web applications have undergone a similar change. In the current web world, it is all about cloud computing, big data and extensive users who need a scalable data management system. One of the common problems experienced by every large data web application is to manage big data efficiently. The traditional RDBM databases are insufficient in handling Big Data. On the contrary, NoSQL database is best known for handling web applications that involve Big Data.
All the major websites including Google, Facebook and Yahoo use NoSQL for data management. Big Data companies like Netflix are using Cassandra (NoSQL database) for storing critical member data and other relevant information (95%). NoSQL databases are becoming popular among IT companies and one can expect questions related to NoSQL in a job interview. Here are some excellent books to learn more about NoSQL.
