SQL stands for Structured Query Language. It’s used for relational databases. A SQL database is a collection of tables that stores a specific set of structured data. Some examples are PostgreSQL, MySQL, MariaDB etc.
NoSQL stands for Not Only SQL. It’s used for non-relational databases. A NoSQL database is a collection of collections that stores a specific set of unstructured data. Some examples are MongoDB, CouchDB, Redis etc.
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