Repository of mongodb

MongoDB is a powerful, flexible, and easy-to-extend general-purpose database MongoDB is written in C++ language and is an open source database system based on distributed file storage. Under high load conditions, adding more nodes can ensure server performance. MongoDB aims to provide scalable, high-performance data storage solutions for WEB applications. MongoDB stores data as a document, and the data structure consists of key-value (key=>value) pairs. MongoDB documents are similar to JSON objects. Field values ​​can contain other documents, arrays, and document arrays . Features of MongoDB: 1. Ease of use MongoDB is written in C++ and is an open source database system based on distributed file storage. It is not a relational database. Under high load conditions, add more More nodes can ensure server performance. MongoDB is a document-oriented database, not a relational database. The main reason for not using the relational type is to obtain better scalability. Of course there are some other benefits. Compared with relational databases, document-oriented databases no longer have “rows” The concept is replaced by a more flexible “document” model. The document-oriented approach is able to work with just one record by embedding documents and arrays in the document to represent complex hierarchical relationships, which…