Browse Definitions :
Definition

dynamic hashing

Contributor(s): Laura Fitzgibbons

Dynamic hashing is a method of hashing, or shortening a string of characters in computer programming, where the set of shortened characters grows, shrinks, and reorganizes to fit the way the data is being accessed. All objects listed in an object dictionary are dynamic and may change when dynamic hashing is applied.

The process of dynamic hashing creates a smaller, adaptable string of characters, making it faster and easier for users to find objects in a dictionary or groups of objects stored in a containing data structure. Dynamic hashing prevents issues caused by a database growing too large and allows for maximum performance. It addition, it maximizes the available space for objects, tables, and other data within a system.

How dynamic hashing works

A hash function is similar to a find and replace feature where programmers are able to specify a specific item and create a system of rules that change it wherever that item occurs and the specified criteria are met.

In dynamic hashing, only a small amount of data is ever accessed at one time, making it easier on a computer's resources to perform one or more of the following commands:

  • Insert- Adds selected content.
  • Delete- Removes selected content.
  • Update- Changes selected content.
  • Query- Pulls up all results with specified criteria.

Dynamic hashing simplifies the work of searching a large database for a specific piece of information and performing various actions on it.

Advantages of dynamic hashing

Compared to other methods of hashing, dynamic hashing provides the following advantages:

  • Performance is not affected when the amount of data in a system is increased, only the memory size is.
  • Memory never goes unused as it adapts to data size.
  • Well-suited for applications where data is constantly changing.
This was last updated in June 2019

Continue Reading About dynamic hashing

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

In what applications does your organization use dynamic hashing over static hashing?
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance as a service (CaaS)

    Compliance as a Service (CaaS) is a cloud service service level agreement (SLA) that specified how a managed service provider (...

  • data protection impact assessment (DPIA)

    A data protection impact assessment (DPIA) is a process designed to help organizations determine how data processing systems, ...

SearchSecurity

  • quantum key distribution (QKD)

    Quantum key distribution (QKD) is a secure communication method for exchanging encryption keys only known between shared parties.

  • identity theft

    Identity theft, also known as identity fraud, is a crime in which an imposter obtains key pieces of personally identifiable ...

  • cybercrime

    Cybercrime is any criminal activity that involves a computer, networked device or a network.

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery plan (DRP)

    A disaster recovery plan (DRP) is a documented, structured approach that describes how an organization can quickly resume work ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

SearchStorage

  • logical unit number (LUN)

    A logical unit number (LUN) is a unique identifier for designating an individual or collection of physical or virtual storage ...

  • NVMe over Fabrics (NVMe-oF)

    NVMe over Fabrics, also known as NVMe-oF and non-volatile memory express over fabrics, is a protocol specification designed to ...

  • CIFS (Common Internet File System)

    CIFS (Common Internet File System) is a protocol that gained popularity around the year 2000, as vendors worked to establish an ...

Close