What is the primary difference between SQL and NoSQL databases?
- SQL databases are schemaless.
- SQL databases use a fixed schema.
- NoSQL databases use a fixed schema.
- SQL databases are primarily used for key-value storage.
The primary difference between SQL and NoSQL databases is their schema. SQL databases use a fixed schema, which means that the structure of the data is predefined, and all data must adhere to this structure. In contrast, NoSQL databases are typically schemaless, allowing for flexibility in data storage, where different records in the same collection can have varying structures. Understanding this distinction is essential when choosing the right database technology for a particular application.
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