Oracle vs MySQL: Key Differences

Oracle and MySQL are two distinct relational database management systems with numerous differences between them, including the following:

1. Developers and users: Oracle database, developed by Oracle Corporation, is widely used in large enterprises and high-end applications; while MySQL, developed by Swedish company MySQL AB, was later acquired by Sun Corporation and then by Oracle Corporation, mainly used in applications for small and medium-sized enterprises and individual developers.
2. Open-source nature: MySQL is a free-to-download and use database system, while Oracle is a commercial system that requires purchasing a license to use.
3. Features and performance: Oracle database has more rich features and stronger performance, supporting advanced features and complex query syntax, suitable for processing large-scale and high-concurrency data; while MySQL, although simpler in functionality, runs faster, has stable performance, and is suitable for small to medium-sized application scenarios.
4. Scalability: Oracle database provides more options for scalability like distributed databases, data replication, and data partitioning, making it suitable for large-scale enterprise applications; whereas MySQL has relatively weaker scalability and does not support some advanced scalability functions.

In general, Oracle database is suitable for large-scale, high-performance, high-concurrency enterprise applications, while MySQL is suitable for medium-scale applications with low development costs and ease of use. The choice of database depends on specific application requirements and budget.