NoSQL systems provides a mechanism for storage and retrieval of data without tabular relations. Characteristics of NoSQL: simplicity of design, simpler “horizontal” scaling to clusters of machines. The data structures used by NoSQL databases (e.g. key-value, wide column, graph, or document) are more flexible, and therefore more difficult to store in relational databases.

Use NoSQL systems if you have non-relational, semi-structured, or unstructured data; with no schema defined.

Technologies: Hortonworks Data Platform (HDP) for Windows, HDInsight, Azure Data Lake Analytics (ADLA), Azure Data Lake Store (ADLS), Spark, Apache HBaseAzure DocumentDB

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