What is the primary difference between document-based NoSQL databases and key-value stores?
- Data is stored as documents with a flexible schema
- Data is stored as graphs with nodes and edges
- Data is stored as key-value pairs without a fixed schema
- Data is stored as tables with predefined columns
The primary difference is that document-based NoSQL databases store data as documents with a flexible schema, allowing for nested structures and varied data types. Key-value stores, on the other hand, store data as simple key-value pairs, providing a more straightforward structure with no nested elements.
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