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The nested set model is a solution to that problem. An alternative solution is the expression of the hierarchy as a parent-child relation. Joe Celko called this the adjacency list model. If the hierarchy can have arbitrary depth, the adjacency list model does not allow the expression of operations such as comparing the contents of hierarchies ...
A version where MySQL has been replaced by PostgreSQL is called LAPP, or sometimes by keeping the original acronym, LAMP (Linux / Apache / Middleware (Perl, PHP, Python, Ruby) / PostgreSQL). [7] The LAMP bundle can be combined with many other free and open-source software packages, including: netsniff-ng for security testing and hardening
JavaScript, PHP, MySQL or PostgreSQL: GPLv3: Web application (LAMP-based system) to manage small and medium entities Worldwide: 2021-09 (14.0.2) [1] ERP5: Python, JavaScript, Zope, or MySQL: GPL: Based on unified model for mid to large size organisations: Worldwide: 2014 (5.5) ERPNext: Python, JavaScript, MariaDB: GPLv3 [2] ERP for small and ...
MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [6] is an open-source relational database management system (RDBMS). [6] [7] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [1] and "SQL", the acronym for Structured Query Language.
It was developed by MySQL AB, and enables users to graphically administer MySQL databases and visually design database structures. Adminer – free MySQL front end capable of managing multiple databases, with many CSS skins available. It is a light-weight alternative to phpMyAdmin, distributed under the Apache license (or GPL v2) as a single ...
The term "solution stack" has, historically, occasionally included hardware components as part of a final product, mixing both the hardware and software in layers of support. [ 4 ] [ 5 ] A full-stack developer is expected to be able to work in all the layers of the application ( front-end and back-end ).
Major DBMSs, including SQLite, [5] MySQL, [6] Oracle, [7] IBM Db2, [8] Microsoft SQL Server [9] and PostgreSQL [10] support prepared statements. Prepared statements are normally executed through a non-SQL binary protocol for efficiency and protection from SQL injection, but with some DBMSs such as MySQL prepared statements are also available using a SQL syntax for debugging purposes.
The name MAMP is an acronym that stems from the names of the components of the system: [1] macOS (the operating system); Apache (the web server); MySQL or MariaDB (the database management system); and PHP, Perl, or Python (programming languages used for web development).