MySQL

What is MySQL?

MySQL is an open-source relational database management system (RDBMS) developed by Oracle Corporation. It’s built on the principles of the Structured Query Language (SQL), which is a standard language for accessing, manipulating, and querying databases. MySQL is commonly used for web-based applications, online publishing, and data warehousing.

In software development, MySQL is utilized to store, retrieve, and manage data. It supports various types of data including text, images, audio, and video. It is particularly popular for its speed, robustness, ease of use, and flexibility.

Developers use MySQL to create databases that store data from software applications. These can be simple databases for small applications or highly complex databases for enterprise-level applications. Developers can perform various operations, like creating, reading, updating, and deleting data (commonly referred to as CRUD operations) using SQL queries.

Its compatibility with many operating systems (like Windows, Linux, macOS) and its ability to integrate with various programming languages (like Python, PHP, Java, C++) make it a flexible choice for developers across various applications. Furthermore, MySQL supports various storage engines, each with its own specifications, making it adaptable to different needs.

MySQL also provides a range of tools for managing and administrating databases, performance tuning, backup and recovery, and for ensuring data security and privacy. These features, along with its scalability and reliability, have made MySQL a popular choice in the world of software development.

When do we use MySQL at Planet Argon?

We use MySQL on many different client projects, depending on if their application(s) use it when we onboard to the project.

How do I install MySQL?

Use Homebrew to install MySQL, then configure to autolaunch on start-up, e.g.:

brew install mysql@5.7

brew services start mysql@5.7

IMPORTANT! M1 Macbook Considerations

If you’re using an M1 Macbook you will need to use the following gem compilation flag:

export PATH="/opt/homebrew/opt/mysql@5.7/bin:$PATH"

Differences between MySQL and PostgreSQL

MySQL and PostgreSQL are both powerful, open-source relational database management systems, but they have some key differences:

ACID Compliance: PostgreSQL is fully ACID compliant (Atomicity, Consistency, Isolation, Durability), ensuring data integrity even in cases of system failure. MySQL only offers ACID compliance when used with InnoDB and NDB Cluster storage engines.
Performance: Generally, MySQL is considered faster for read-heavy operations due to its default configuration and storage engines. On the other hand, PostgreSQL is often favored for systems with heavy write and complex query operations, thanks to its powerful query optimizer.
Extensibility: PostgreSQL is highly extensible and allows for custom functions, operators, and complex data types. MySQL is less flexible in terms of extensions.
Replication: MySQL has traditionally offered more options for replication, including master-slave and master-master replication, making it a popular choice for scalability. However, PostgreSQL has significantly improved its replication capabilities in recent versions.
SQL Compliance: PostgreSQL adheres more closely to the SQL standard and supports many advanced features of the SQL language that MySQL does not, including some forms of window functions and recursive queries.
GIS Features: PostgreSQL, with its PostGIS extension, offers superior GIS features compared to MySQL, making it a popular choice for spatial databases.
Storage Engines: MySQL supports plug-in storage engines (such as InnoDB, MyISAM, Memory, etc.), so you can choose based on specific needs. PostgreSQL has a single storage engine but it’s robust and offers a wide array of features.