How many connections does oracle database support?
The number of Oracle database connections is affected by version, hardware, application and workload. According to official guidelines, each 5GB of RAM can support approximately 50 (simple applications), 25 (moderate complexity), or 10 (very complex) connections. Actual connection capacity may vary and requires performance testing to determine.
Number of connections supported by Oracle database
Oracle database can support a large number of concurrent connections, the specific number depends on the following factors :
- Database version: Newer versions of Oracle usually support more connections.
- Server Hardware: CPU, memory, and storage capacity affect connection capacity.
- Applications and Workloads: The type of application and the intensity of the workload also affect the number of connections.
Estimated connection capacity
The following are the estimated connection capacity guidelines officially provided by Oracle:
- For simple applications, each 5GB RAM supports approximately 50 connections.
- For moderately complex applications, approximately 25 connections are supported per 5GB of RAM.
- For very complex applications, approximately 10 connections are supported per 5GB of RAM.
Actual Connection Capacity
Actual connection capacity may vary based on hardware used, applications and workloads. To determine accurate connection capacity, performance testing is recommended.
Note
- Exceeding the number of connections recommended by Oracle may cause performance degradation and instability.
- It is important to understand the concurrency requirements of your application in order to allocate sufficient connections to the database.
- Monitor connection usage to identify and resolve potential issues.
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