What does mysql database do?

MySQL is a relational database management system. A relational database stores data in different tables instead of putting all the data in one large warehouse, which increases speed and flexibility.

MySQL is a relational database management system developed by Swedish company MySQL AB and is a product of Oracle. MySQL is one of the most popular relational database management systems. In terms of WEB applications, MySQL is one of the best RDBMS (Relational Database Management System) application software.

The SQL language used by MySQL is the most commonly used standardized language for accessing databases. MySQL software adopts a dual licensing policy and is divided into community edition and commercial edition. Due to its small size, fast speed, low total cost of ownership, and especially its open source nature, MySQL is generally chosen as the website database for the development of small and medium-sized websites.

Knowledge point expansion:

MySQL is a database management system

A database is a collection of structured data. It can be a simple picture of a shopping list or a large amount of information on a company network. In order to add, access, and manipulate the data stored in a company database, you need a database management system, such as a MySQL server. Because computers are very good at processing large amounts of data, database management systems play a very central role in computing, either as stand-alone utilities or as part of other applications.

MySQL database is relational

A relational database stores data in different tables instead of storing all the data in one large storage area. To increase storage speed, structured data is organized and stored in physical files. The logical model of objects such as databases, tables, views, rows, and columns provides a flexible programming environment. You can set corresponding relationship rules in different data fields pointing to different tables, such as one-to-one, one-to-many, unique, required, and optional. The database enforces these rules, so in a well-designed database, an application never sees inconsistent, duplicate, orphaned, out-of-date, or missing data.

The SQL part of MySQL corresponds to Structured Query Language, which is the most common standardized language for accessing databases. Depending on your programming environment, you can enter SQL directly (such as to generate reports), embed SQL into other languages, or use language-specific APIs to hide the SQL syntax.

SQL is defined according to the ANSI/ISO SQL standard. Since 1986, the SQL standard has been continuously developed, and now there are several versions, such as the 1992 version, the 1999 version and the 2003 version. Currently, most people use the latest 2003 version.

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