Advantages of Result Caching
- Improved Query Performance: By eliminating the need to access the disk and process the data, the query performance can be improved significantly. This can lead to improved response times and a better overall user experience.
- Reduced Physical I/O: By storing the query results in memory, the need to access the disk and read the data is eliminated. This can reduce the amount of physical I/O required for the database and can lead to improved scalability.
- Reduced Memory Usage: By storing the query results in memory, the need to access the disk and read the data is eliminated. This can reduce the amount of memory used by the database and can lead to improved scalability.
- Improved Availability: By caching the query results in memory, subsequent requests to the same query will not have to access the disk, which can improve the overall availability of the database.
What is Result Caching in Oracle?
Result Caching is a feature of the Oracle database that allows query results to be stored in memory, eliminating the need to re-execute the query and improving overall query performance. It can be used in both single-instance and clustered environments to reduce physical I/O and improve the scalability of an Oracle database.
When a query is executed in Oracle, the database needs to access data from the disk, process it, and then return the results. This process can be quite time-consuming and can also require a significant amount of physical I/O. Result Caching eliminates the need to access the disk and process the data, instead storing the results in memory and allowing subsequent requests to access the cached results.
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