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17 lines
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17 lines
1.5 KiB
# NoSQL databases |
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NoSQL databases are a category of database management systems designed for handling unstructured, semi-structured, or rapidly changing data. Unlike traditional relational databases, which use fixed schemas and SQL for querying, NoSQL databases offer flexible data models and can be classified into several types: |
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1. **Document Stores**: Store data in JSON, BSON, or XML formats, allowing for flexible and hierarchical data structures (e.g., MongoDB, CouchDB). |
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2. **Key-Value Stores**: Store data as key-value pairs, suitable for high-speed read and write operations (e.g., Redis, Riak). |
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3. **Column-Family Stores**: Store data in columns rather than rows, which is useful for handling large volumes of data and wide columnar tables (e.g., Apache Cassandra, HBase). |
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4. **Graph Databases**: Optimize the storage and querying of data with complex relationships using graph structures (e.g., Neo4j, Amazon Neptune). |
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NoSQL databases are often used for applications requiring high scalability, flexibility, and performance, such as real-time analytics, content management systems, and distributed data storage. |
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Visit the following resources to learn more: |
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- [@article@NoSQL Explained](https://www.mongodb.com/nosql-explained) |
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- [@video@How do NoSQL Databases work](https://www.youtube.com/watch?v=0buKQHokLK8) |
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- [@video@SQL vs NoSQL Explained](https://www.youtube.com/watch?v=ruz-vK8IesE) |
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- [@feed@Explore top posts about NoSQL](https://app.daily.dev/tags/nosql?ref=roadmapsh)
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