Décisionnel in-memory : SAP détaille son plan d'attaque - Journal du Net Solutions. In-memory database. An in-memory database (IMDB; also main memory database system or MMDB or memory resident database) is a database management system that primarily relies on main memory for computer data storage. It is contrasted with database management systems that employ a disk storage mechanism. Main memory databases are faster than disk-optimized databases since the internal optimization algorithms are simpler and execute fewer CPU instructions. Accessing data in memory eliminates seek time when querying the data, which provides faster and more predictable performance than disk.[1][2] In applications where response time is critical, such as telecommunications network equipment and mobile advertising networks, main memory databases are often used.[3] IMDBs have gained a lot of traction, especially in the data analytics space, starting mid-2000s mainly due to cheaper RAM.[4][5] ACID support[edit] In their simplest form, main memory databases store data on volatile memory devices.
Storage memory[edit] QlikView. Jeffrey La Grand: New generation HR Dashboar...