Hybrid Database

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What Does Hybrid Database Mean?

A hybrid database is a database system that supports and uses both on-disk and in-memory data storage. Hybrid databases are used when the system needs high performance with the small footprint that only in-memory database systems can provide. This also provides the added benefits of durability and low cost of disk-based database systems. In short, the system makes use of hard disks for saving and retaining data, yet makes use of the memory for data that is in dynamic use to increase performance.

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Techopedia Explains Hybrid Database

Because hybrid databases support both in-memory and on-disk storage, the obvious benefit is flexibility. The developer can then strike a balance between performance, cost and persistence.

The benefits of a hybrid database include:

  • Performance: This is the in-memory part of the equation. Sorting, storing and retrieving specific in-use data entirely from memory rather than from disks makes all processes substantially quicker.
  • Cost: Hard disks cost less than memory, so some of the money saved can be used to add more memory to improve performance.
  • Persistence: Because RAM chips cannot get close to the storage density of a hard drive, disks are still used to store data needed for later use. This ensures that they are not lost in the event of a power outage.
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Margaret Rouse
Editor

Margaret jest nagradzaną technical writerką, nauczycielką i wykładowczynią. Jest znana z tego, że potrafi w prostych słowach pzybliżyć złożone pojęcia techniczne słuchaczom ze świata biznesu. Od dwudziestu lat jej definicje pojęć z dziedziny IT są publikowane przez Que w encyklopedii terminów technologicznych, a także cytowane w artykułach ukazujących się w New York Times, w magazynie Time, USA Today, ZDNet, a także w magazynach PC i Discovery. Margaret dołączyła do zespołu Techopedii w roku 2011. Margaret lubi pomagać znaleźć wspólny język specjalistom ze świata biznesu i IT. W swojej pracy, jak sama mówi, buduje mosty między tymi dwiema domenami, w ten…