What is the difference between Postgresql and MySQL?

PostgreSQL and MySQL are two of the most popular open-source relational database management systems (RDBMS) available today. Both databases have been in use for many years and offer many features, including support for SQL and ACID-compliant transactions.

However, there are some significant differences between the two databases that make them better suited for certain tasks.

• Data Integrity: PostgreSQL offers better data integrity and reliability than MySQL, with features like transactional DDL and CHECK constraints.
• Scalability: While both databases can handle large datasets, PostgreSQL has been shown to be better at scaling up and handling complex workloads.
• Complex queries: PostgreSQL has a more powerful query optimizer and supports a wider range of advanced SQL features than MySQL.
• Open-source licensing: Both databases are open source, but PostgreSQL uses the more permissive BSD license, while MySQL is licensed under the GPL, which may be more restrictive for some use cases.

Ultimately, the choice between PostgreSQL and MySQL will depend on your specific needs and the requirements of your project. If data integrity and complex queries are a priority, PostgreSQL may be the better choice. On the other hand, if you need to scale quickly and have a smaller team with limited resources, MySQL may be the more practical option.