This is an object relational database management system that mainly emphasizes on extensibility and on standards-compliance. It being a database server its primary function is to store data securely supporting best practices, and to allow for retrieval at the request of other software applications. PostgreSQL boast of being able to handle workloads ranging from small single-machine application to large internet-facing applications with many concurrent users.
PostgreSQL implements majority of the SQL: 2011 standard that is its acid compliant and transactional hence avoiding locking of issues using multi-version concurrency control. It’s also able to provide immunity to dirty reads and full serializability. It handles complex SQL queries too using many indexing methods that are not available in other databases.
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