mongo shell commands

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MongoDB MONGO shell, common operation commands, GUI client

The MONGO shell is a JavaScript interface used to connect MongoDB, providing users with the means to query and manipulate data in MongoDB, and to manage MongoDB. start and automatically connect to a MongoDB instance:The default installation in "/usr/bin/", with "which" command can be viewed to: # which Mongo/usr/bin/mongo

Mongodb-the MONGO Shell, Write Scripts for the MONGO shell

Tags: man SSI onchange returns control following ROR scripts LuaYou can write scripts for the MONGO Shell in JavaScript this manipulate data in MongoDB or perform administrative Operation. For more information about the MONGO Shell, see the Running. js files via a MONGO

Mongodb-the MONGO Shell, Data Types in the MONGO shell

MongoDB BSON provides support for additional data types than JSON. Drivers provide native support for these data types in host languages and the MONGO Shell also provides several h Elper classes to support the use of these data types in the MONGO JavaScript Shell. See the Extended JSON Reference for additional informat

Mongodb-the MONGO Shell, Access the MONGO shell help

In addition to the documentation in the MongoDB Manual, the MONGO Shell provides some additional information in I TS "Online" Help system. This document provides a overview of accessing this Help information.Command line HelpThe list of options and help for starting the MONGO shell with the --help option from the comma

Mongodb-the MONGO Shell, Configure the MONGO shell

Customize the PromptModify the content of the prompt by setting the variable prompt in the MONGO shell. The promptvariable can hold strings as well as JavaScript code. If prompt holds a function that returns a string, the MONGO can display dynamic information in each prompt.You can add the logic for the prompt in the. mongorc.js file to set the prompt each time y

"Go" couldn & #39; t connect to server 127.0.0.1: 27017 at src/mongo/shell/mongo. js: 145, "go" 27017

"Go" couldn't connect to server 127.0.0.1: 27017 at src/mongo/shell/mongo. js: 145, "go" 27017 Couldn't connect to server 127.0.0.1: 27017 at src/mongo/shell/mongo. js: 145. For more information, see. It should be because the ins

Error: couldn't connect to server 127.0.0.1: 27017 src/Mongo/Shell/Mongo. JS: 91

Recently, I started to learn how to install Mongo in windows. It is not difficult to perform this operation. I still use it in Linux. But refer to some documents after installation. The title error was found when Mongo was started. Finally, this problem is solved by setting the path again. Solution: Enter the following command [root@localhost mongodb]# ./bin/mongod -dbpath=/data/db Then, the following page

[mongo]couldn ' t connect to server 127.0.0.1:27017 at Src/mongo/shell/mongo.js:l112__js

Today, at the start of the MONGO when there was a mistake, my win7 environment. E:\server>mongo MongoDB Shell version:2.4.5-pre- connecting to:test Mon Sep 13:35:05.335 JavaScript Execution Failed:Error:couldn ' t connect to server 127.0.0.1:27017 at src/mongo/shell/mon

MONGO practice-operation via JS Shell MONGO

MONGO practice-operation via JS Shell MONGOSave command:J={name: "Wangjingjing", age:15}Db.user.save (j);Query command:var cursor = Db.user.find ();while (Cursor.hasnext ()) Printjson (Cursor.next ());Printjson (Cursor[4]);var arr = Cursor.toarray ();Db.user.find ({name: "wangjingjing"});Select age from user where name= ' wangjingjing 'Db.user.find ({name: "wangjingjing"},{age:true});Db.user.findOne ();Db.u

Mongodb-introduction of the MONGO Shell

Tags: keyword mini pretty one prompt racket local ram resIntroductionThe MONGO Shell is a interactive JavaScript interface to MongoDB. You can use the MONGO Shell to query and update data as well as perform administrative operations. The MONGO

Configure the MONGO shell-official documentation excerpt

Customize the Prompt Custom tipsModify the content of the prompt by setting the variable in the prompt mongo shell. The prompt variable can hold strings as well as JavaScript code. If prompt holds a function that returns a string, the mongo can display dynamic information in each prompt.You can add the logic for the prompt in the. mongorc.js file to set the promp

Common Mongo client commands

Mongo client Common commands 1. database related commands 1showdbs list all databases 2usememo Use Database memo. Even if the database does not exist, it can be executed, but the database will not be created immediately. The database will be created only when insert and other operations are executed. www.2cto. com3showcollections

MongoDB map-reduce-Mongo shell and C # (lower)

Following the previous article, this article is mainly implemented by the C # version of Mongo map-Reduce. If you are not familiar with the C # driver, it doesn't matter. The MongoDB official website has a good getting started article, you will soon learn how to write the Mongo program in C #, instead of entering commands on the console every day. Getting Started

Error:couldn ' t connect to server 127.0.0.1:27017 Src/mongo/shell/mongo.js:91__js

-i686-2.0.8.tgz redis-1.2.6.tar.gz redis-2.6.6.tar.gz src etc gcc-4.1.2.tar.g Z include leveldb-1.7.0 libexec mongodb-linux-i686-2.2.2.tgz redis-2.4.14 sbin Games leveldb-1.5.0 leveldb-1.7.0.tar.gz MongoDB redis-1.2.6 redis-2.4.14.tar.gz Share [root@local Host local]# CD MongoDB [root@localhost mongodb]# LS bin db gnu-agpl-3.0 logs README third-party-notices [Root@localh OST mongodb]# CD logs [root@localhost logs]# ls [root@localhost logs]# ls [root@localhost logs]# [root@localhost logs]

Mongodb-mongodb CRUD Operations, Query Documents, iterate a Cursor in the MONGO Shell

Tags: User format limit query handle for REM SEQ statThe Db.collection.find () method returns a cursor. To access the documents, you need to iterate the cursor. However, in the MONGO Shell, if the returned cursor was not assigned to a variable using the varkeyword, Then the cursor was automatically iterated up-to-the-print up-to-the-first documents in the results. The following examples describe ways to man

MONGO Shell startup configuration file. Mongorc.js (ii)

MONGO Shell startup configuration file. Mongorc.js (ii)If you have a. mongorc.js file under your home directory, he will run automatically when you start the shell. Use it to initialize any helper methods you use frequently and delete methods that you do not want to accidentally manipulate.For example, you do not want to use the default Dropdatabase () method, an

Converting character types using the MONGO shell

Tags: LSP mongodb blog modified long integer using str gesThe MongoDB data types are as follows: Type corresponding numbers Alias Description Double1 1 Double String 2 String Object 3 Object Array 4 Array Binary data 5 Bindata Undefined 6 Undefined Deprecated ObjectId 7

(rpm) mongodb resolves couldn ' t connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91 error __JS

Turn from: http://hi.baidu.com/zwfec/item/3cfecfabafda3a258819d38b Today, look at the server, found that Mongod start not up, prompted Sun June 2 12:27:02 error:couldn ' t connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91 Error Look up the solution on the Internet, most people say set up dbpath, this is to solve the problem, but not to find the root cause of the problem, The root of the prob

Mysql, sqlsever, oracle, redis, mongo, postgres and other database backup and recovery commands, sqlseverredis

Mysql, sqlsever, oracle, redis, mongo, postgres and other database backup and recovery commands, sqlseverredis The following is a simple example of how to back up and restore each database. For more detailed parameters and configurations, refer to relevant information. I. mysql: Parameter description: $ User $ Password $ Targethost $ Port $ Charset $ Dbname $ Table $ Filename

Executing a MONGO query on the shell

DemandWhen writing gadgets, you often encounter the need to check things out of MongoDB, because you want to use it in conjunction with other bash toolchain, so the best way to do this is to execute the query on the shell and then pipe it to the next tool.SchemeFortunately for MONGO to do is very convenient, only need to use MONGO--eval can. Example 1:192.168. 1.

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