Get all the capabilities you expect from a powerful SQL database, wire compatible with PostgreSQL
SQL Playground
            QUERY INTROSPECTION TOOLS
Introspect and optimize queries with a strong set of native tools
  Command line: Run commands like EXPLAIN and EXPLAIN ANALYZE to understand query plans and performance
          ACID transactions
Trust your data is immediately correct at any scale with ACID compliant guarantees and serializable isolation--even with high concurrency and competing distributed transactions
Developer’s guide to transactions
          Online schema changes
Make any schema changes while your data is still available for reads and writes, with zero downtime, even in production.
Developer’s guide to schema
          Cost-based optimizer
Leverage a first-class query optimizer which analyzes and automatically selects the most optimal query execution plan for best performance in a distributed environment.
Cost-based optimizer docs
          Developer tool integrations
Use your favorite drivers, ORMs, and other third-party developer tools, enabled by CockroachDB’s support for the PostgreSQL wire protocol.
List of tools supported
          Free Online Training
Learn the SQL skills you need to scale your database and your resume straight from industry experts.
Getting Started with SQL for App Devs