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nosql

Innocent Iguana answered on January 21, 2023 Popularity 10/10 Helpfulness 1/10

answer nosql

nosql

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Non-relational database design that provides flexible schemas for the storage and retrieval of data

Advantages (Removes limitations of traditional RDBMS):
- Works with structured, unstructed, semi-structured data
- Works with distributed systems
- Can scale well
- Flexible and Agile

Generally categorized into 4 types:
1. Key-value store
	- Data stored as a collection of key-value pairs (eg: JSON)
    - Used for real-time recommendations, and in-memory data caching
    - example database: Redis, DynamoDB
2. document-based
	- Store each record and its associated data within a single document
    -  Enable flexible indexing, ad hoc queries, analytics over collections of documents
    - example database: MongoDB, CouchDB
3. column-based
	- store data in cells grouped as columns of data
    - Store all cells corresponding to a column as a continuous disk entry
    - A logical grouping of columns (known as column family) is accessed together
    - Used for heavy write intensive systems (eg: IoT devices, time series)
    - example database: Cassandra, HBase
4. graph-based
	- use a graphical model to represent and store data.
    - Good for working with data which contains lots of interconnected relationships.
    - example database: Neo4J, CosmosDB

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Contributed on Jan 21 2023

Innocent Iguana

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