Editions

Database audit provides professional and advanced editions for you to choose from.

Table 1 describes the database audit editions.

**Table 1** DBSS editions
Edition	Maximum Databases	Performance
Professional	6	Peak QPS: 6,000 queries/second Database load rate: 7.2 million statements/hour Online SQL statement storage: 600 million statements
Advanced	30	Peak QPS: 30,000 queries/second Database load rate: 10.8 million records/hour Online SQL statement storage: 1.5 billion statements

A database instance is uniquely defined by its database IP address and port.
The number of database instances equals the number of database ports. If a database IP address has N database ports, there are N database instances.

Example: A user has two database IP addresses, IP₁ and IP₂. IP₁ has a database port. IP₂ has three database ports. IP₁ and IP₂ have four database instances in total. To audit all of them, select professional edition DBSS, which supports a maximum of six database instances.
To change the edition of a DBSS instance, unsubscribe from it and purchase a new one.
The cloud native edition can be purchased only on the RDS console.
The table above lists the system resources consumed by a database audit instance. Ensure your system has the required configurations before purchasing database audit instances.
Online SQL statements are counted based on the assumption that the capacity of an SQL statement is 1 KB.

Database security encryption provides four service editions: 1 asset, 3 assets, 6 assets, and 10 assets. You can select one of them as needed.

Table 2 lists the performance specifications of the version.

**Table 2** DBSS editions
Edition	Maximum Databases	System Resource	Performance
1 Asset	1	CPU: 8 vCPUs Memory: 16 GB	Encryption/decryption performance: 20,000 QPS Maximum concurrent connections: 1500
3 Assets	3	CPU: 8 vCPUs Memory: 16 GB	Encryption/decryption performance: 20,000 QPS Maximum concurrent connections: 1500
6 Assets	6	CPU: 16 vCPUs Memory: 32 GB	Encryption/decryption performance: 40,000 QPS Maximum concurrent connections: 3000
10 Assets	10	CPU: 16 vCPUs Memory: 32 GB	Encryption/decryption performance: 40,000 QPS Maximum concurrent connections: 3000