• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here:Home » What is Meant by In-Memory Database?

By Abhishek Ghosh July 16, 2020 12:11 pm Updated on July 16, 2020

What is Meant by In-Memory Database?

Advertisement

An in-memory database is a database management system that uses a computer’s memory as a data store. An In-Memory Database is a type of analytical database, which is a read-only system that stores historical data about indicators for business intelligence/business analytics (BI/BA) applications, usually as part of a data store or data mart. These systems enable users to run queries and reports on the information contained, which is updated regularly to incorporate recent transaction data from an organization’s operating systems.

The traditional database management systems use hard disk drives as a data store. A computer’s memory provides much faster access speeds than hard drives, and also the access to algorithms are simpler. As a result, in-memory databases are much faster and their access times are more predictable than those of disk-access. However, memory is much more expensive than disk space, so the individual computer usually has much less of it. However, if a database needs high storage capacity, grid computing can overcome this barrier for in-memory databases.

 

Non-persistence

 

Because in-memory databases store their data in volatile memory, which it loses in the event of system crashes, they do not easily meet the requirement for persistent storage (persistence) of completed transactions. Many in-memory databases help this and achieve less or more persistence in data storage using the following methods:

Advertisement

---

  1. Snapshot files store the state of the database at specific times, such as at scheduled intervals or when the database is controlled to shut down. However, all changes since the most recent snapshot may still be lost in this process.
  2. Additional log files also reflect recent changes to the database. The most recent snapshot and the log of the changes that have been made in the meantime can be used to automatically restore the last valid state of the database.
  3. Use of non-volatile RAM, usually realized as a combination of conventional volatile RAM with energy storage, guarantees the receipt of the data even when the system is restarted.
  4. Highly available In-memory databases ensure durability by replicating and failover to a traditional database.

Some in-memory databases can make parts of the data more or less persistent if desired. This saves you the hassle of backing up data that is easy to recover or that is useless after a system crash.

There are a number of commercial and open source implementations of in-memory databases. These include, Apache Derby, Apache Ignite, IBM Informix, SAP HANA, MySQL (cluster server for a distributed in-memory database) etc.

What is Meant by In-Memory Database

 

Hybrid In-Memory Databases

 

Hybrid in-memory databases are database systems that can store data in both memory and hard drives. These make it possible to achieve the appropriate balance between performance, cost, durability and form factor during operation.

 

Final Words on In-Memory Databases

 

The term in-memory database is not very clear. Traditional databases also typically use memory to avoid slow IO access, such as to a hard drive. Depending on the configuration of the system, the entire database can also be kept in memory. Furthermore, for the speed of a database system, the data or index structure is usually more important than the access speed of the storage medium. Only optimizing these data structures to memory without structures for IO access is a difference from traditional databases.

High speeds in in-memory databases are partly due to limiting persistence and consistency capabilities. This is legitimate for databases primarily intended for reading access, but problematic for other use cases. To compensate for these problems, some products such as Redis and MySQL are also often combined, and in-memory databases then serve the purpose of a cache.

Facebook Twitter Pinterest

Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to What is Meant by In-Memory Database?

  • Nginx WordPress Installation Guide (All Steps)

    This is a Full Nginx WordPress Installation Guide With All the Steps, Including Some Optimization and Setup Which is Compatible With WordPress DOT ORG Example Settings For Nginx.

  • Theoretical Foundations of Big Data : Part 3

    Theoretical Foundations of Big Data is third and final part of our series of articles. We have talked about Data Mining, OLAP & softwares.

  • What is in-memory computing? Use of in-memory computing

    In-memory computing has been around for several years. Niche which relies on this technology includes telecom, social networks and trading.

  • WordPress & PHP : Different AdSense Units on Mobile Devices

    Here is How To Serve Different AdSense Units on Mobile Devices on WordPress With PHP. WordPress Has Function Which Can Be Used In Free Way.

performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

Get new posts by email:

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (24.3K Followers)
  • Twitter (5.8k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • PowerAmp Settings for Higher Sound QualityOctober 4, 2023
  • Affordable Earphone/IEM for Audiophiles: HiFiMan RE-400 WaterlineOctober 2, 2023
  • What is Hardware Security Module (HSM)September 30, 2023
  • Transducer Technologies of HeadphonesSeptember 28, 2023
  • What is Analog-to-Digital Converter (ADC)September 27, 2023
PC users can consult Corrine Chorney for Security.

Want to know more about us?

Read Notability and Mentions & Our Setup.

Copyright © 2023 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy