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18 lines
2.1 KiB
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18 lines
2.1 KiB
Markdown
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title_tag: What is NoSQL?
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title: NoSQL
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meta_desc: NoSQL is a type of database that organizes data into some data structure other than the two-dimensional tables seen in relational databases.
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layout: glossary/single
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---
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## Definition
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A type of database that organizes data into some data structure other than the two-dimensional tables seen in relational databases. Also called non-relational databases, NoSQL databases can be [document-based](/learn/glossary/document-oriented/) (like MongoDB), [column-based](/learn/glossary/column-oriented/) (like Apache Cassandra), [graph-based](/learn/glossary/graph-oriented/) (like Neo4j), or [key-value](/learn/glossary/key-value/) (like DynamoDB). Other flavors of NoSQL databases do exist, including hybrids, but these are the most commonly-used.
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| Database Type | Use Cases | Cloud Examples | Self-hosted Examples |
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|--------------- |---------------------------------------------------------------- |--------------------------------- |---------------------- |
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| Key-Value | ECommerce, recommendation engines, high-traffic | [DynamoDB](https://aws.amazon.com/dynamodb/), [CosmosDB](https://azure.microsoft.com/en-us/services/cosmos-db/), [BigTable](https://cloud.google.com/bigtable) | [Redis](https://redis.io/) |
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| Column | Business intelligence, data warehousing | [Keyspaces](https://aws.amazon.com/keyspaces/), [CosmosDB](https://azure.microsoft.com/en-us/services/cosmos-db/) | [Apache Cassandra](https://cassandra.apache.org/_/index.html) |
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| Graph | Recommendation engines, fraud detection, social networks | [Neptune](https://aws.amazon.com/neptune/) | [Neo4j](https://neo4j.com/) |
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| Document | Content management systems, user profiles, product information | [DocumentDB](https://aws.amazon.com/documentdb/), [CosmosDB](https://azure.microsoft.com/en-us/services/cosmos-db/), [Firestore](https://firebase.google.com/docs/firestore) | [MongoDB](https://www.mongodb.com/) |
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