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Due to exponential growth of data over the years, there are lot of formats in which the data is available. Many schema-less databases are identified as the data these days do not pertain itself to a particular scheme. So, the effective storage and processing of such data were not possible with the existing RDBMS. The looming of NoSQL databases proved to be one of the best solutions for handling these kind of schema-less data. This work comprises about the various characteristics of NOSQL databases. The performance comparison of two widely used Document-oriented NOSQL databases viz MongoDB and CouchDB are analysed in this work. Both qualitative as well as quantitative features are taken and a comparison for streaming applications among those features are provided using the two databases under study.
Kumar et al. (Sun,) studied this question.