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MySQL

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description MySQL Overview

MySQL, now owned by Oracle, remains a widely used relational database, particularly popular for web applications. Its maturity and extensive ecosystem contribute to its continued relevance. While its open-source roots are important, the licensing model has evolved, impacting some users. MySQL's performance and scalability are well-established, and it integrates seamlessly with many popular web development frameworks.

It's a solid choice for projects prioritizing ease of deployment and broad compatibility, although its feature set lags behind PostgreSQL.

help MySQL FAQ

Is MySQL still open source now that Oracle owns it?

Yes, MySQL Community Server is still available under the GPL, while Oracle also sells commercial MySQL editions and services. Oracle became the steward of MySQL after acquiring Sun Microsystems in 2010.

Why do web apps still use MySQL instead of PostgreSQL?

MySQL remains common because it is mature, widely hosted, and deeply supported by stacks like PHP, WordPress, Laravel, and Rails. PostgreSQL is often favored for advanced SQL features, but MySQL is still a default choice for many high-traffic web applications.

What does InnoDB do in MySQL?

InnoDB is MySQL's main storage engine and supports transactions, row-level locking, and foreign keys. It became the default storage engine in the MySQL 5.5 era, replacing the older MyISAM default for most serious workloads.

Which MySQL version line matters for long-term deployments?

For conservative production systems, Oracle's LTS releases are the safer line than short-lived innovation releases. MySQL 8.4 is an LTS branch, while 9.x releases are aimed more at newer features and faster iteration.

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