+At the lowest level, CockroachDB is a distributed, strongly-consistent, transactional key-value store, but the external API is [Standard SQL with extensions](sql-feature-support.html). This provides developers familiar relational concepts such as schemas, tables, columns, and indexes, and the ability to structure, manipulate, and query data using well-established and time-proven tools and processes. Also, since CockroachDB supports the PostgreSQL wire protocol, it’s simple to get your application talking to Cockroach; just find your [PostgreSQL language-specific driver](install-client-drivers.html) and start building.
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