MySQL: 实现安全的并发读写（mysql并发读写）

Recently, the need to ensure secure multi-user access to databases has become increasingly demanding. MySQL is a popular open source relational database management system, and it provides a secure way to implement secure concurrent read/write.

In MySQL, the first step to secure concurrent reads and write is to implement transaction isolation levels. Transaction isolation level controls the amount of data visibility between different transactions. Isolation level can be set through the “SET TRANSACTION ISOLATION LEVEL” command, as follows:

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;

This setting guarantees that all transactions within the same database are fully isolated from each other, preventing interference from one transaction to another.

The second step is to configure the locking system in MySQL. Deadlocks are a common issue with concurrent transactions that occur when two transactions mutually block each other and the server is unable to proceed. In MySQL, the default locking system locks read and write operations in order to avoid conflicts.

For further security, the database administrator should implement database permissions to protect certain read and write operations. Database permissions can be set for each database user, and it affects the user’s ability to read from, write to, or modify the database. For instance, a database user can be set to only have read-only access to the database, preventing any unauthorised modifications.

Of course, database security also requires the use of strong passwords. Passwords should be unique and secure, and database users should be encouraged to use a password manager to store their credentials.

In conclusion, MySQL offers a secure way to implement secure concurrent read and writes. It is important to enable transaction isolation levels, configure the locking system, and implement database permissions to ensure safety. Additionally, utilizing strong passwords is essential for maximum database security.