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In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports .
Laravel is a free and open-source PHP-based web framework for building web applications. [3] It was created by Taylor Otwell and intended for the development of web applications following the model–view–controller (MVC) architectural pattern and based on Symfony .
Tahoe-LAFS (Tahoe Least-Authority File Store [5]) is a free and open, secure, decentralized, fault-tolerant, distributed data store and distributed file system. [6] [7] It can be used as an online backup system, or to serve as a file or Web host similar to Freenet, [citation needed] depending on the front-end used to insert and access files in the Tahoe system.
DELETE requires a shared table lock; Triggers fire; DELETE can be used in the case of: database link; DELETE returns the number of records deleted; Transaction log - DELETE needs to read records, check constraints, update block, update indexes, and generate redo / undo. All of this takes time, hence it takes time much longer than with TRUNCATE
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