OrientDB is an open source NoSQL database management system. NoSQL databases provide a mechanism for storing and retrieving non-relational or non-relational data that refers to data other than tabular data, such as document data or graph data. Big data and real-time web applications increasingly use NoSQL databases. NoSQL systems are sometimes called "Not Only SQL" to emphasize that they may support SQL-like query languages.
OrientDB also belongs to the NoSQL series. OrientDB is a second-generation distributed graph database with flexible document capabilities in one product, and is released using the open Apache 2 license. Before OrientDB there were several NoSQL databases on the market, one of them was MongoDB.
MongoDB vs. OrientDB
MongoDB and OrientDB contain many common features, but the engines are fundamentally different. MongoDB is a pure document database, and OrientDB is a hybrid document with a graph engine.
Features:
Relationships
MongoDB uses RDBMS JOINS to create relationships between entities. It has a high runtime cost and does not scale as the database size increases.
OrientDB uses a relational database to connect and connect documents. It uses direct, ultra-fast links from the world of graph databases.
Get plan
MongoDB expensive JOIN operation.
OrientDB easily returns complete graphs with interconnected files.
Transaction
MongoDB does not support ACID transactions, but it supports atomic operations.
OrientDB supports ACID transactions and atomic operations.
Query Language
MongoDB has its own language based on JSON.
OrientDB query language is built on SQL.
Index
MongoDB uses the B-Tree algorithm for all indexes.
OrientDB supports three different indexing algorithms so that users can get the best performance.
Storage engine
MongoDB uses memory mapping technology.
OrientDB uses the storage engine names LOCAL and PLOCAL.
The above is the detailed content of Introduction to OrientDB. For more information, please follow other related articles on the PHP Chinese website!
deepseek web version official entranceMar 12, 2025 pm 01:42 PMThe domestic AI dark horse DeepSeek has risen strongly, shocking the global AI industry! This Chinese artificial intelligence company, which has only been established for a year and a half, has won wide praise from global users for its free and open source mockups, DeepSeek-V3 and DeepSeek-R1. DeepSeek-R1 is now fully launched, with performance comparable to the official version of OpenAIo1! You can experience its powerful functions on the web page, APP and API interface. Download method: Supports iOS and Android systems, users can download it through the app store; the web version has also been officially opened! DeepSeek web version official entrance: ht
In-depth search deepseek official website entranceMar 12, 2025 pm 01:33 PMAt the beginning of 2025, domestic AI "deepseek" made a stunning debut! This free and open source AI model has a performance comparable to the official version of OpenAI's o1, and has been fully launched on the web side, APP and API, supporting multi-terminal use of iOS, Android and web versions. In-depth search of deepseek official website and usage guide: official website address: https://www.deepseek.com/Using steps for web version: Click the link above to enter deepseek official website. Click the "Start Conversation" button on the homepage. For the first use, you need to log in with your mobile phone verification code. After logging in, you can enter the dialogue interface. deepseek is powerful, can write code, read file, and create code
How to solve the problem of busy servers for deepseekMar 12, 2025 pm 01:39 PMDeepSeek: How to deal with the popular AI that is congested with servers? As a hot AI in 2025, DeepSeek is free and open source and has a performance comparable to the official version of OpenAIo1, which shows its popularity. However, high concurrency also brings the problem of server busyness. This article will analyze the reasons and provide coping strategies. DeepSeek web version entrance: https://www.deepseek.com/DeepSeek server busy reason: High concurrent access: DeepSeek's free and powerful features attract a large number of users to use at the same time, resulting in excessive server load. Cyber Attack: It is reported that DeepSeek has an impact on the US financial industry.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SublimeText3 English version
Recommended: Win version, supports code prompts!
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
SublimeText3 Linux new version
SublimeText3 Linux latest version
