Frankfurt am Main, 1 October 2021The management team of the central registry and technical operator of the German country code Top Level Domain (...)
What is MySQL and How Does it Work?
What is MySQL?MySQL is an open source relational database management system (RDBMS) with a client-server model. It’s pronounced “My S-Q-L”, and it was developed by a Swedish company in 1994. But that probably doesn’t tell you what you really need to know about it, like “What’s a database?”, “What does ‘client-server model’ mean?” and “Why is MySQL so popular?” Fret not. In this guide, we’ll break all of this down. Let’s start with the easiest question:
What’s a database?A database is a place where data is stored and organised.
Your phone’s contact list is an example of a database.That’s where all your contact data is stored. When we say MySQL is a “relational” database management system, we mean that the database stores information in chunks that all relate to each other in some way. In this case, the “chunks” are tables.
What’s a client-server model?The “client” here doesn’t mean you. A client is a computer that runs RDBMS software. MySQL is called a “client-server model” because whenever a computer needs to access the database, it connects to the RDBMS server.
How does MySQL work?The MySQL software is made up of the MySQL server, the programs that help in the administration of the MySQL databases, and supporting software.
However, the most important part of the MySQL system is the MySQL server.The MySQL server is hosted on the same physical or virtual system where the database files are stored, and it manages the database system. If you want to do anything to the database, whether that involves adding information to the database or removing information from it, you have to go through the MySQL server. When you ask the MySQL server to do something, for example “Delete the database called skydivingelephants”, the MySQL server locates the subdirectory in its data librady and deletes it. The MySQL server is always running as long as the computer is on. That way, it’s always available to carry out requests.
Features of MySQLMySQL has a multi-layered, modular design, which just means that the server is designed with independent modules. Here are some of the best features of MySQL:
- It’s It uses fast B-tree tables with index compression, executes fast joins using nested-loop join, and has a lightning-fast thread-based memory allocation system.
- It’s built for security. MySQL boasts host-based verification, encrypted connections, authentication plugins, connection-control plugins, password-validation systems, user account management and access control, and many more features that are designed to bolster security.
- It supports data redundancy, which means that the same data is stored in two separate places. This is great for backup and recovery purposes, and also allows errors in the data to be corrected smoothly. And, speaking of backup, MySQL offers a range of backup strategies, so you can choose the one that works for you.
- It supports more than just one data type. For instance, it supports floating-point types (float and double), binary and varbinary, char and varchar, signed/unsigned integers, and many more.