mongodb terminal commands

Tags: style blog http os using IO ar for dataI am a mongodb installed in CentOS1. Download MongoDBCurl-o http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.6.3.tgz2. Unzip the downloaded documentTAR-ZXVF mongodb-linux-x86_64-2.6.3.tgz3. Installing MongoDBCp-r mongodb-linux-x86_64-2.6.3/*/usr/local/mongoStart Mon

MongoDB Common commands: Super User Related: Use admin#增加或修改用户密码Db.adduser (Ixigua, ' pwd ')#查看用户列表Db.system.users.find ()#用户认证Db.auth (Ixigua, ' pwd ')#删除用户Db.removeuser (' MongoDB ')#查看所有用户Show Users#查看所有数据库Show DBS#查看所有的collectionShow collections#查看各collection的状态Db.printcollectionstats ()#查看主从复制状态Db.printreplicationinfo ()#修复数据库Db.repairdatabase ()#设置记录profi

Tags: Mon Common operations drop restore Comm Ash data MONGO endView all databases: > Show DBS; Select a database: > Use ECommerce; To view the current database status: > Db.stats (); To view all the collections in the current database: > Show Collections; To view the collection status: > DB. Toperatelog.stats (1024) To view collection data: > DB. Toperatelog.find () To delete a data collection: > DB. Toperatelog.drop () To back up a database collection: #/usr/local/

Label:The project used to MongoDB, the basic is to use Robomongo to connect the server, do some of the lower permissions to delete and change the operation. Commands often forget to record some of the most frequently used commands for collections for easy querying: 1 , create a clustered collection (table) - 5 - }); 2 a Clustered collection (table) with th

After the successful start of MongoDB, and then open a command line window input MONGO, you can do some of the database operations.1. Enter Help to see the basic Operation command:Show DBS: Display database list Show Collections: Displays a collection in the current database (similar to a table in a relational database) show Users: Show user use ;: Toggles the current database, which and ms- 1}): Find the Foo collection in the current database, provi

Comparison between MongoDB and MySQL commands Traditional relational databases are generally composed of three levels: database, table, and record. MongoDB is composedDatabase, collection, and document)Three layers. MongoDB has no concept of columns, rows, and links for tables in relational databases, which reflects th

Label:MongoDB is a very popular NoSQL database management system, officially: MongoDB, I installed in localhost is the Enterprise Server version, the default installation file directory is: C:\Program files\mongodb\server\3.2\bin, click Windows+r, enter cmd, start command Prompt, go to the installation directory Every time you open command prompt you need to enter the installation directory of

column Db.userInfo.find ({sex: {$exists: true}}). Count (); Equivalent to: SELECT COUNT (Sex) from userInfo; Indexes (indexes are created and reused before they can cause efficiency problems) 1. Create an index db.userInfo.ensureIndex ({name:1}); Db.userInfo.ensureIndex ({name:1, TS:-1}); 2. Querying all indexes of the current aggregation collection db.userInfo.getIndexes (); 3. View Total index record size db.userInfo.totalIndexSize (); 4. Read all index information for the current collection

Basic database commands common database commands 1. Help Command Prompt helpdb. help (); db. yourColl. help (); db. youColl. find (). help (); rs. help (); 2. Switch to create database useyourDB. When a set (table) is created, the current database is automatically created. 3. query all databases. 4. Delete Basic database commands common database

Tags: int names error logging related SQL RDA input new is yourAfter the successful start of MongoDB, and then open a command line window input MONGO, you can do some of the database operations.Enter help to see the basic Operations Command:Show DBS: Display Database listShow Collections: Displays a collection in the current database (similar to a table in a relational database)Show Users: Show userUse Db.help (): Show database Operations Command with

1. Display Server Status: Db.serverstatus () 2. MongoDB can monitor data through profile to optimize it. Check whether the profile function is currently turned on: Db.getprofilinglevel () returns level, value 0|1|2, meaning: 0 for off, 1 for slow command, 2 for all Open profile function: Db.setprofilinglevel (level,slowms); #level等级. At level 1 o'clock, the slow command defaults to SLOWMS (unit ms)(that is, execution time is greater than

Tags: des style http color io using AR strong forAfter the successful start of MongoDB, and then open a command line window input MONGO, you can do some of the database operations.Enter help to see the basic Operations Command:Show DBS: Display Database listShow Collections: Displays a collection in the current database (similar to a table in a relational database)Show Users: Show userUse Db.help (): Show database Operations Command with a lot of comm

Tags: mongodb basic commandsMongodb maintain basic commandsuser admin commands apply to 2.* version 3.* some changes 1. View detailed shard informationMongos>sh.status ()---sharding Status---Sharding version: {"_id": 1,"Version": 4,"Mincompatibleversion": 4,"CurrentVersion": 5,"Clusterid": ObjectId ("569c8e920d9b1cb4bbf4169a")}Shards:{"_id": "Shard1", "host": "Shard1/192.168.0.167:20200,192.168.0. 25:20,1

Tags: string new manual OPD update var boolean journal baseMongodb:nosql Database Important indicator points in MongoDB The three elements in MongoDB Database Collection Document The data store in MongoDB is stored in the form of Bson, and Bson is a binary json, so it looks like the recorded form

Getlasterror command When writing data to a database, MongoDB does not wait for a response message by default. Use the getlasterror command to ensure that the operation has been correctly executed. In many drivers, the getlasterror command is automatically called when you use the "Security" mode (set write concern) for saving and updating. But when this special getlasterror command is called, what actually happens. Here, we will introduce how it works

Tags: FFFFFF 4.0 data start keyword AMP timestamp update required1. Import Pymongo 1. Initializing the Mongo client Client=pymongo. Mongoclient (mongodb:// 10.85.39.45:8188,10.85.39.43:8188,10.85.39.31:8188,10.85.39.32:8188,10.85.39.33:8188,10.85.39.34:8188,10.85.32.16:8188,10 .85.32.33:8188,10.85.39.35:8188,10.85.39.27:8188) 2. Initializing the databaseMongo_database = Client[db_name] 3. Initializing tables STAT_TBL = Mongo_database[stat_tbl_name] 4.

Common commands of MongoDB First, install the database. You can use windows or linux, but linux is recommended. I use ubuntu12.04. you can download the database at the following URL, it is usually a 64-bit system. If you use a linux system, you can use the command line to install mongodb. I just use sudo apt-get install mongo