1: What is a database and SQL
The database is a collection of data in the system. The database supports the storage and operation of data. The database enables data management. Made easy, for example, online phone directories certainly use databases to store data related to people, phone numbers, and other contact details, etc. [Recommended reading: MySQL Tutorial]
Structured Query Language (SQL) pronounced "SQL" or sometimes called "See-Quel" is actually the standard language for processing relational databases. SQL programming can be effectively used to insert, search, update, delete database records, but is not limited to optimizing and maintaining databases, MySQL databases, Oracle, Ms SQL Server, Sybase and other relational databases using SQL!
2: Advantages of MySQL in SQL Server
MySQL supports multiple storage engines, each engine has its own specifications, while other systems such as SQL Server only support Single storage engine. To understand this problem, let's take a look at the two storage engines supported by MySQL.
InnoDB: - The default storage engine provided with MySQL starting from version 5.5, InnoDB supports foreign keys for referential integrity and also supports ACID standard transactions.
MyISAM: - It was the default storage engine for MySQL before 5.5. MyISAM lacked support for transactions and had the advantage of being simpler and more performant than InnoDB.
Compared with other relational database systems, MySQL has high performance because of its simple design and support for multiple storage engines.
It is cost-effective and relatively cheap in terms of cost compared to other relational databases. In fact, the Community Edition is free. The commercial version comes with a licensing fee, which is also cost-effective compared to the licensing fees for products like Microsoft SQL Server.
Cross-platform - MySQL runs on many platforms, which means it can be deployed on most machines. Other systems like MS SQL Server run only on Windows platform.
In order to interact with MySQL, you need a server access tool that can communicate with the MySQL server. MySQL supports multiple user connections.
The above is a complete introduction to what database and SQL are. If you want to know more about SQL video tutorial, please pay attention to php Chinese website.
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