Why choose mysql

Reason for selection: 1. Mysql is open source and free, which can save development costs; 2. The combination of "PHP mysql" is the first choice for website developers. Thanks to the PHP language, mysql is also very popular. ; 3. Most servers use the Linux system, and Linux servers use the most PHP environment architecture, so mysql is widely used in Linux; 4. MySQL is easy to learn and use; 5. It has flexibility and scalability, making MySQL It can be adjusted according to the needs of the user's current system.

The operating environment of this tutorial: windows7 system, mysql8 version, Dell G3 computer.

What is MySQL?

MySQL is a multi-user, multi-threaded SQL database and a client/server structure application. It consists of a server daemon mysqld and many different client programs and libraries. .

SQL (Structured Query Language) is currently the most widely used and standard database language. The SQL language makes it very easy to access or update information. You can directly use SQL to query information from the website. MySQL is fast and flexible enough to meet the information management work of a website. The interface program between the database and the client can communicate using CGI. Xinwang ChinaDNS uses PHP. The combination of PHP and MySQL is the best combination for developing data-driven websites. PHP is a scripting language used for server-side execution of program interpretation. If you have been exposed to ASP, then you should be familiar with embedding code in HTML pages. The PHP code is interpreted, executed and converted into ordinary HTML page content on the server side and sent to the browser side. This mode allows us to use it to complete quite complex functions.

Five reasons to choose mysql

1. Mysql is open source and free.

This should be the main reason. It does not cost money to use the mysql database. Therefore, in order to save the company's costs, most companies will first choose the mysql database. Whether it is Microsoft's mssql database or Oracle's oracle database, there is a fee. Of course, in terms of security level, the Oracle database is the highest and is the first choice of some data companies (for example, e-commerce platforms have the highest security requirements). However, for ordinary companies, the security level of the MySQL database is enough. You need to spend a lot of money to buy oracal.

2. PHP mysql is the first choice for website developers.

There are many website development languages, such as: PHP, java, asp, asp.net, python, etc. Each of these development languages ​​has its own advantages. However, the vast majority of data websites on the market are developed through PHP language. The advantages of PHP language in website development are far greater than those of other languages, which is also recognized in the industry. The combination of PHP and mysql is the best choice for website developers. Therefore, thanks to the PHP language, mysql is also the most popular.

3. Most servers use Linux systems.

There are currently two main types of website server systems: windows system and linux system. For a company, the stable operation of the website is the most important, and the stability of the Linux system is much higher than that of the Windows system. Therefore, the vast majority of websites will choose the Linux system as their website server system. LAMP (linux apache mysql php) and LNMP (linux ngnix mysql php) are currently the most commonly used PHP environment architectures on Linux servers. Therefore, mysql databases are widely used on Linux system servers.

4. Simplicity

Compared with other databases, MySQL is easy to learn and use.

You don’t have to spend a lot of time and money to train existing employees, or spend a lot of money to hire developers with various certifications. Because the maintenance and management of MySQL is "fool-proof" to a large extent, this directly leads to savings in labor costs. Mitch Pirtle, CEO of Spacemonkey Labs, a MySQL user, said: "Maintaining MySQL means you don't need to A DBA with an annual salary of $150,000, and it is very simple to develop programs using it."

For the MySQL database, there are now a large number of powerful tools to choose from, both in terms of development and support. Every novice developer can easily develop using MySQL database. Even an experienced Windows administrator can easily deploy and start learning it, and you don't have to invest a penny to learn about this database.

There is another aspect to the simplicity of MySQL that IT managers like. MySQL can run faster. Some people may say that MySQL lacks some features that people want, but MySQL supporters believe that the features retained by MySQL are the essence and are essential for you to deploy, configure and maintain this database. Function.

"With a simple plan from a capable DBA, MySQL can run at unimaginable speeds," said a senior DBA. There are no extraneous features in MySQL to tax the CPU or occupy memory. If you need additional functionality, MySQL's popularity actually means that you will find that there is always a vendor that will provide the exact solution that will meet your needs and requirements.

5. Flexibility and scalability

Since there are so many additional features available in MySQL, such as storage engines, etc., you can choose the one that suits you best company, or try multiple engines. MySQL starts very small, but can continue to become more powerful as the company grows. A senior developer at MySQL AB said, "This feature allows MySQL to be adjusted according to the needs of your current system."

"MySQL is actually a family of databases, and you can choose from one and Configure it to meet most of your scenarios," says the president of open source consultancy Ethiqa. "So you can start with a small version of the product and then add performance or size as needed. extension."

You can configure MySQL to run in tiny embedded applications that may process less than 1Mb of data - or you can use it to process terabytes of data. One way MySQL achieves this scalability is through what is known as a stored procedure, which is a tiny, precompiled program that runs outside of the program. These procedures are stored and run on the database server to reduce processing on the client, thereby maximizing processing power because the database server will typically run faster. Stored procedures are not a unique feature of MySQL, but this recent addition makes the database even more attractive than before.

MySQL is ready to support all the most popular Web 2.0 languages, such as Ruby, Ajax, etc., and of course PHP. Some industry analysts have said, "Every Web 2.0 company is essentially a database company." Since MySQL is already a database that runs many well-known Web 2.0 websites, including Craigslist, Digg, Wikipedia, and Google, perhaps we can It is said that every Web 2.0 company is essentially a company using a MySQL database.

The functional features of MySQL are as follows:

1. Can handle an almost unlimited number of users at the same time;

2. Handle up to 50,000,000 or more users Record;

3. Fast command execution, perhaps the fastest today;

4. Simple and effective user privilege system.

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