Here are a couple of examples to help you learn more about the available offerings. Source 1. NewSQL databases attempt to combine the data consistency benefits of traditional relational databases with the scalability of NoSQL platforms. Document-Based NoSQL Databases. Graph databases are basically built upon the Entity – Attribute – Value model. Document databases — MongoDB. Examples of databases applying Key-Value pairs are Oracle NoSQL database and Redis. Entities are also known as nodes, which have properties. NoSQL databases often make tradeoffs by relaxing some of the ACID properties of relational databases for a more flexible data model that can scale horizontally. We can even store complete URLs as the URL name can be the key and the actual URL as value. Complex objects can be easily stored without a lot of mapping. We have: column-oriented, graph, advanced data structures, document-oriented, and key-value. This makes NoSQL databases an excellent choice for high throughput, low-latency use cases that need to scale horizontally beyond the limitations of a single instance. Types of NoSQL Databases. Now that we know what a NoSQL database is, let’s explore the different types of NoSQL databases in this section. Wide-column stores are another type of NoSQL database. Each document has … Storage nodes are then replicated to establish high availability to maintain consistency.Oracle NoSQL Database is integrated with different Oracle and open source applications to work on development and operation of big data applications… In them, data is stored and grouped into separately stored columns instead of rows. Graph databases — Neo4J and HyperGraphDB. Here’s an example of a document in MongoDB: Examples of Document Databases. Examples of NoSQL document databases include MongoDB, CouchDB, Elasticsearch, and others. Document-based databases store the data in JSON objects. MongoDB – Free, open-source (ranked by many as the top NoSQL database to learn and voted by Stack Overflow devs as the the most wanted database for the 4th consecutive year) Couchbase – Free, open-source; Use Cases Many NoSQL document databases use the mapping and reduction technique to query collections and generate results. 2. In this type of database, the record and its associated data are stored in a single document. Examples of column store NoSQL databases are Cassandra and Apache Hadoop Hbase. It is a very flexible way to describe how data relates to other data. NoSQL databases fall into four main categories: Key value Stores — Riak, Voldemort, and Redis. Wide Column Stores — Cassandra and HBase. NoSQL products support a whole range of new data types, and this is a major area of innovation in NoSQL. In this tutorial, you will learn how to create a simple table, add data, scan and query the data, delete data, and delete the table by using the DynamoDB console.DynamoDB is a fully managed NoSQL database that supports both document and key-value store models. Oracle NoSQL Database, a sharded system, allocates data uniformly across other shards in the groups. Wide-Column Database. A global user profile store is another example of where the key value characteristics of NoSQL come into play. A NoSQL database can store the user IDs, user preferences, multiple ID … Graph base NoSQL database. These are extensively used in big data analytics. Example of Relational Database Schema. Types of NoSQL databases. 1. Document-Based Store NoSQL. Data Querying: This is an important feature because database users need to retrieve data. The words to the right hand side are examples of the types of NoSQL database types. 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