what bson

One of my new jobs at IBM is a development logistics staff. That means I spend most of my time dealing with the database. In my workflow, I spent some time on MongoDB-this is a document database. But I ran into some problems with the ID to retrieve

MongoDB Getting Started column Http://blog.csdn.net/column/details/19681.html MongoDB Basic ConceptThe following is a comparison of some of the concepts of SQL terminology and MongoDB terminology: SQL Terminology/Concepts MongoDB

Students who use MongoDB for a period of time will surely find that mongodb tend to occupy a lot more space than the actual data size. If you use the Db.stats () command to view, you will find that MongoDB reports several different spatial size

Gridfs is a specification for storing and retrieving files that exceed the Bson document size limit of MB.Instead of storing the file in a document, the Gridfs file is divided into sections, or blocks, each as a separate document. Using Fridfs with

Recently in the study of using a non-relational database, the document-based database MongoDB is currently being used. Involves manipulating the MongoDB database using Ruby in a Windows environment. It is therefore necessary to install the Ruby

In order to save the user data and business data for a site, a database is usually required. MongoDB and node. JS are particularly well-matched because MongoDB is a document-based, non-relational database that is stored in Bson (the lightweight

I learn MongoDB time is not long, but in view of the needs of the work and the future trend of development, I want to deeper understanding of the underlying principles of MONGODB and more flexible application of mongodb, learning while working

BackgroundIn distributed systems, we have multiple web apps that may be deployed on separate physical servers and have their own log output. When production problems come, it is often necessary to go to each log file to look for possible exceptions,

About MongoDB IntroductionMongoDB is a product between a relational database and a non-relational database, and is the most versatile and most like relational database in a non-relational database. The data structure it supports is very loose and is

First, insert a Bjson data into the databaseThe first is to define the document, then log in with the admin username password, enter the test database, insert this document into the test database ("table name and records in table")Insert results,

I. MONGODB documents and collections(1) Documentation1. The document is the core of MongoDB concept, is essentially a JSON-like Bson format of data, Bson is a class JSON binary format data, can be understood to add some new data types on the JSON,

IntroducedMongoDB is a database based on distributed file storage. Written by the C + + language. Designed to provide scalable, high-performance data storage solutions for Web applications.MongoDB is a product between a relational database and a non-

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

Record the required code first, and add the article later.1 Public classMongonearby2 {3 Private Static ObjectObjlock =New Object();4 Private Staticmongodatabase MONGO;5 6 Private Staticmongodatabase Instance7

In a preliminary discussion, we have been able to successfully run MongoDB on our own machine. But there are some tools that we don't know about in the bin directory. Next, you'll look at the purpose of each gadget and explore the purpose of a file

MongoDb compared to the traditional SQL relational database, the biggest difference lies in their schema design (schema) differences, it is because this level of differences derived from other aspects of the difference.we can simply think that the

Mongodump and mongorestore are two commands used to back up and recover mongodb databases. They are located in the bin folder of the mongodb installation directory. The backup file exported by mongodump is in binary format. Each file has two backup

Tutorial This tutorial is a brief introduction to pymongo and Mongo. After reading this, you should have an understanding of pymongo's basic operations on Mongo.Prerequisites Install pymongo and Mongo before you start. Make sure that the following

Source: http://www.educity.cn/wenda/361741.htmlPymongo Delete data according to ObjectId _idWant to delete data, according to _ID, is the most reliable, concrete methodBecause _id is a objectid () object, you first have to introduce a pair of images,

Ruby connection to MongoDB To connect to MongoDB in Ruby, you need to use the Mongo module. This module can be installed through the gems program that comes with Ruby. $ gem update --system$ gem install mongo$ gem install bson_ext The Mongo module