MongoDB

This document describes how to install MongoDB under CentOS 6 or 7 x64.1. Configuration package Management System (YUM)Take the MongoDB 3.6 version as an exampleCreate a/etc/yum.repos.d/mongodb-org-3.6.repo file to install MongoDB directly using Yum;

1. Configure the Yum source for MongoDBTo create a Yum source file:Vim/etc/yum.repos.d/mongodb-org-3.6.repoAdd the following content:[mongodb-org-3.6]Name=mongodb Repositorybaseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.6/x86_6

Installation steps:1. Configuring the Package Management systemVim/etc/yum.repos.d/mongodb.repo[Mongodb]name=MongoDB repositorybaseurl=http://Downloads-distro.mongodb.org/repo /redhat/os/x86_64/gpgcheck=0Enabled=1paste the code below into vim.Wq

This project uses the mongodb,c# operation MongoDB to use the MongoDB.Driver.dll Library (Nuget), wrote a small demo, as

MongoDB 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.It is characterized by high performance, easy to deploy, easy to use,

1, MongoDB installed after the first entry is not required password, and no user, through the shell command can directly enter, CD to the MongoDB Directory Bin folder, execute the command./mongo can be run as follows: [ [email protected] MongoDB

Use the DB. Table name. Insert () Inserts data without the existence of a relational table name, and no restrictions for field names such as: Db.mytable.insert ({"_id": 1, "name": "Java"}) Db.mytable.insert ({"Name") : "Java", Value: "Spring"}) We

cd /usr/local/src/wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.7.1.tgztar -zxvf mongodb-linux-x86_64-3.7.1.tgzmv mongodb-linux-x86_64-3.7.1 /usr/local/mongodbecho "PATH=/usr/local/mongodb/bin:$PATH" >> /etc/profilesource

Get MongoDBVisit Https://www.mongodb.com/download-center, download the latest version of MongoDB and follow the instructions to install one step at aConfigure MongoDB to create a profile as a Windows service startupNeed to create a profile, the

Previously written about how to access the MongoDB database with R, now write down how to filter the conditions (constraints) to make the call to the data. The actual statement invocation is similar to the MONGO query method.How to connect to a

How MongoDB sets permissions (user names and passwords like relational databases) original link https://www.cnblogs.com/itxiongwei/p/5520863.html#MongoDB default is not set authentication, the industry most of the projects using MongoDB also did not

Open the MongoDB clientBin/mongo-port port number under installation directoryView DatabaseShow DBS;Go to a database belowUse dbname;View CollectionsShow collections;View collection All dataDb.collectionname.find ();View collection One piece of

The difference between MongoDB high version and low versionOne. MongoDB Engine:MONGODB 3.0 supports user-defined storage engines, which users can configure using the Mmapv1 or Wiredtiger storage engine. The Wiredtiger storage engine, which was

Statistics MongoDB slow query, found that some set slow query a lot, and then notify the development of the field to look at the index,And after the development of the discussion with a unique index, add the time to find duplicate data, and then use

Mongodb startup and basic commands, mongodb startup commands 1. Start mongodb with Parameters ./Mongod -- dbpath =/usr/local/mongo/mongodb/data -- fork -- logpath =/usr/local/mongo/mongodb/logs -- nohttpinterface 2../mongo connect to mongodb 3. Use

SequoiaDBJava development tutorial, sequoiadbjava 1. Background In recent years, with the advancement of society and the development of information and communication technology, information systems and Internet applications have rapidly expanded in

Installation and configuration of unixODBC tutorial, configure unixodbc tutorial 1. install and configure unixODBC Note: by default, unixodbc is installed in the operating system. The installation steps are ignored. Download unixODBC Install

Description of DBUtils and connection pool, and description of DBUtils connection pool ### 01DButils tool class: three core classes * A: The DButils tool class introduces three core classes. * A: overview * DBUtils is a practical tool for database

MongoDB aggregate function application example, mongodbaggregatePreface Recently, the company used MongoDB as the database storage and learned how to use MongoDB. As a representative of non-relational databases, the database is mainly stored in

Tutorial on using special delimiters to process data in DB2, db2 delimiters I received a request a few days ago, using the special symbol '|' as the field separator. I thought it was not done for a long time. Later, under the guidance of the team