In-Memory Database Systems

In-Memory Database

An In-Memory Database Systems (IMDS) is a database management system that primarily relies on the main memory of the computer (RAM) for data storage compared to a traditional database management system which employs a disk storage mechanism. They are a growing subset of a database management system (DBMS) emerged in response to new application goals, system requirements, and operating environments.

In-Memory Database Systems (IMDS) are faster than disk-based databases since the internal optimization algorithms are more straightforward and execute fewer CPU instructions. Accessing data from the RAM (main memory) eliminates seek-time when querying the data, which provides faster and more predictable performance than disk. In theory, IMDS scales well beyond the terabyte size range.

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