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Last updated 2023-11-27 06:49:18

What Is A Hash Table?

Table of contents

Definition

A hash table is a key-value [→] pair data structure that uses a hashed key to decide where to store and look up data values. Retrieval becomes faster since the hashed key is used as the address to store and locate values. Without this the entire record will have to be searched whenever you try to retrieve data.

Example

Sample Hash table [→] Hash tables rely on hashing algorithms to convert keys into memory or general store addresses. This makes locating key-value pair datasets a straightforward process without needing to perform a lengthy search.

The indexing of database records depends on a similar concept.

Summary

Hash tables are sometimes known as Hash maps.

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