mongodb delete field from collection

The blog has moved Https://www.tianmingxing.com MongoDB is an open-source, document-oriented NoSQL (not only SQL) database written using C + +, and one of the most popular NoSQL databases. NoSQL Introduction NoSQL means "Not just SQL", is the

About MongoDB Mongdb is a cross-platform, document-oriented database that enables high performance, high availability, and easy scalability, and is an open source database system based on distributed file storage. In the case of high load,

Directory Brief introduction MongoDB installation (Windows) Getting Started with MongoDB basic syntax and operations (Mongo.exe client operations) Library operations Insert Inquire Modify Delete

Original link http://www.cnblogs.com/zhangzili/p/4975080.htmlMongoDB knowledge points at a glance1. Start the MongoDB database:Go to the MongoDB installation directory and execute the following commandC:\Program

If you have never been familiar with MongoDB or have a little understanding of MongoDB, if you are a C # developer, take a few minutes to read this article. This article will take you step by step to get started easily. Read directory 1:

Database Concepts Databases: Warehouses for data storage Database is a convenient management of data for us a platform, such as data storage, modification, query and so are very convenient. Database Classification There are a lot of database

DatabaseMultiple databases can be built in a mongodb.The default database for MongoDB is "DB", and the database is stored in the data directory.In MongoDB you can create a database, and if you want to use MongoDB, creating a database is not

Directory Brief introduction MongoDB installation (Windows) Getting Started with MongoDB basic syntax and operations (Mongo.exe client operations) Library operations Insert Inquire Modify Delete

MongoDB combat Development "0 basic Learning, with complete ASP.Read Catalogue Begin Download MongoDB, and start it Using MongoDB in C # Refactoring (simplifying) code Viewing data using MongoDB's clients Maintaining

First, the index introductionIn MongoDB, indexes are used to support efficient queries. If there is no index, MONGODB must scan each document in the entire collection to find a matching document. However, if an appropriate index is established,