{"id":173946,"date":"2023-11-26T16:03:28","date_gmt":"2023-11-26T15:03:28","guid":{"rendered":"https:\/\/liora.io\/en\/?p=173946"},"modified":"2026-02-06T08:45:57","modified_gmt":"2026-02-06T07:45:57","slug":"crud-definition-and-operation","status":"publish","type":"post","link":"https:\/\/liora.io\/en\/crud-definition-and-operation","title":{"rendered":"CRUD: definition and operation"},"content":{"rendered":"

Closely linked to digital data management, CRUD is a computer acronym for stored data operations. It encompasses four basic operations for managing the relevance of data and applications: Create, Read, Update and Delete.<\/strong><\/p>

The CRUD (Create, Read, Update, Delete)<\/strong> is a fundamental concept in web development<\/a> and holds significance throughout the field of computer science. What are the functions of a CRUD? How to create one? Let’s take a look in this post.<\/p>\t\t\n\t\t\t

What are the functions of a CRUD? <\/h3>\t\t\n\t\t

The design of an application involves several stages, including:<\/p>

1. The user interface (Web or Windows).
2. The business logic layer.
3. The data access layer.
4. The data storage layer.<\/a><\/p>

The last two layers communicate directly to perform CRUD operations.<\/p>

CRUD refers to four fundamental operations for managing any type of data:<\/p>

– Create (add and insert)
– Read (view, search, list, query, and extract)
– Update (modify and edit)
– Delete (remove)<\/p>\t\t\n\t\t\t

How do these 4 basic CRUD operations work?<\/h3>\t\t\n\t\t

CRUD<\/strong> applications allow you to create, read, update, and delete data.<\/p>

The create procedure executes the INSERT statement in an SQL database,<\/a> creating a new record. This can represent user information, tasks, an account, or a post, for example.<\/p>

The read procedure is an operation that allows users to access and view creations and posts. The search function lets users filter entries they need.<\/p>

The update procedure allows for modifying existing data.<\/strong> Specifically, the Update function<\/a> enables users to modify existing data, even in its entirety, as needed.<\/p>

The delete procedure, as the name suggests, removes a specified row. This function allows users to get rid of an entry in the database or the user interface.<\/p>\t\t\n\t\t\t

How are CRUD functions performed?<\/h3>\t\t\n\t\t

CRUD operations<\/strong> are typically executed based on the programming language environment and may differ between SQL and NoSQL databases<\/a> (such as HTTP, MongoDB, RESTFul, and Xquery).<\/p>

For the Create procedure, users use INSERT in SQL and PUT or POST insert for NoSQL databases.<\/p>

For the Read procedure, users will use SELECT in SQL. In contrast, they may use GET, COPY, MODIFY, RETURN, or HEAD for databases other than SQL.<\/a><\/p>

For the Update procedure, UPDATE is used in SQL databases. For NoSQL databases, functions like PUT, PATCH, REPLACE, or RENAME are employed.<\/p>

Regarding the Delete procedure, the DELETE function is used to delete an entry in all types of databases, whether SQL or non-SQL.<\/p>

Note: Besides these operations performed in a database, CRUD can also apply to other functions, including software deletion.<\/p>\t\t\n\t\t\t\n

Discover our Data Courses<\/a><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Closely linked to digital data management, CRUD is a computer acronym for stored data operations. It encompasses four basic operations for managing the relevance of data and applications: Create, Read, Update and Delete. The CRUD (Create, Read, Update, Delete) is a fundamental concept in web development and holds significance throughout the field of computer science. […]<\/p>\n","protected":false},"author":76,"featured_media":173948,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[2434],"class_list":["post-173946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-dev"],"acf":[],"_links":{"self":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/173946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/comments?post=173946"}],"version-history":[{"count":1,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/173946\/revisions"}],"predecessor-version":[{"id":206220,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/173946\/revisions\/206220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media\/173948"}],"wp:attachment":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media?parent=173946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/categories?post=173946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}