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This article mainly explains "what are the functions of MySQL 8.0". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what are the functions of MySQL 8.0"?

▎ has more powerful functions in six key upgrades.

After in-depth compatibility and further optimization of MySQL 8.0, Baidu Intelligent Cloud RDS for MySQL products perform perfectly and have strong performance under high load conditions such as high concurrency and high access. Details are as follows:

In terms of features, Baidu Intelligent Cloud RDS for MySQL has launched the following capabilities with a high degree of compatibility and production around version 8.0:

1. Support for DDL atomization

If the system crash is encountered during the execution of multiple SQL statements, some SQL execution and some SQL execution may occur in the historical version; transactional data dictionary is introduced in MySQL 8.0, which can support the success or failure of atomic DDL,SQL statements.

two。 Support for internal temporary tables

Through the temporary table engine TempTable, the problems of side length storage of VARCHAR fields and memory storage of large objects are solved.

3. Backup lock (Backup lock) is supported

MySQL 8.0 enables instances to perform DML operations during online backups, effectively preventing snapshot inconsistencies.

4.JSON enhancement

MySQL 8.0 has greatly increased support for JSON. Not only add the JSON_EXTRACT () function, JSON_ARRAYAGG (), and JSON_OBJECTAGG () aggregate functions, but also allow partial modification of the JSON type, reducing the footprint of resources.

5.InnoDB enhancement

MySQL 8.0 implements breakthrough optimizations such as data dictionary reconstruction and support for a new atomic operation model at the InnoDB kernel level.

6. Enhanced security and account management

MySQL 8.0 new support for role permissions, connection control plugin, double password and other security capabilities.

▎ accelerates the landing application of industry

MySQL is one of the most widely used open source databases, which has been established and applied in games, Internet finance, e-commerce, online education, finance and other industries.

In addition to adapting and optimizing the official MySQL version 8.0 kernel, Baidu Intelligent Cloud Relational Database RDS products also provide developers and DBA with efficient and easy-to-use control and operation and maintenance capabilities at the platform layer, such as database resource life cycle management, database table management, backup and recovery management, monitoring and alarm, as well as the newly released Smart-DBA capabilities. Further put Baidu's more than ten years of development, operation and maintenance experience in the database field into products, and also combine Baidu Intelligent Cloud's service experience in various industries for many years to provide product solutions and services for all kinds of RDS MySQL 8.0 users.

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