show all databases in mongodb

The basic concepts in MongoDB are databases, collections, and documents .The following table will help you understand some of the concepts in MONGO more easily: SQL Terminology/Concepts Explanation/Description MongoDB Terminology/Concepts Explanation/Description Database Database Database Database

How do i show all users in MySQL? This is a question that MySQL beginners often ask, and today we'll show you how to display all the users in MySQL. Usually we use show DATABASES in MySQL to display

Label:This is a question that MySQL beginners often ask, and today we'll show you how to display all the users in MySQL. Usually we use show DATABASES in MySQL to display all the databases, showTABLES will

How do i show all users in MySQL?1. Show databases all databases2. Show tables display all data sheets3, select Current_User (); Show Curren

/logs/mongodb.logport= 27017fork=trueJournal=falsestorageengine=mmapv1V. Start MongoDB1. 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 under the Bin folder, execute the command./mongo, as shown below:./mongod--config/usr/local/mongodb/mongodbserver/etc/mongo

memory mapping, which maps all data files into memory, but only virtual memory, which is only exchanged in material memory when the data is accessed. Each data file is divided into one block of data, and the block is connected to the block by a two-way chain. In the namespace file, the stored information metadata for each namespace is saved, including its size, number of blocks, the position of the first block, the position of the last piece,

Tags: mysq AST resource 0.00 Manage ATI Change yourself classLi Wu:Heng Learn to think together, honouring teachers save Thanksgiving. Leaf See root three return to one, rivers the same oneness.Meekness Conscience Lord, willing to do without regrets to the most bitter. Reading exercises to keep the body and mind, sincere advice and the line and cherish. Data, data, Lingen on the data. You must be cautious about operating the database. Give the most bitter code here, and take a look

This article describes how to see what MySQL databases are on the current server when we log on to a MySQL server? The order is show databases. How to log on to the MySQL server, and how to use the MySQL command line, we have in front of some articles have been introduced, welcome to see! Now let's see, when we've logged on to the MySQL server, want to see what

Source: comparison of various nosql databases in http://hi.baidu.com/eastdoor/blog/item/758d0e3eedb5d92471cf6c14.html Cassandra, MongoDB, CouchDB, Redis, Riak, HBaseCouchDBDevelopment language: ErlangMain advantages: data consistency and ease of useLicense: ApacheProtocol: HTTP/RESTApplicable: accumulated, less changed data. Or a large number of versions are required.Example: CRM, CMS systems. multi-site de

All databases to one file: The code is as follows Copy Code #!/bin/bashdate=$ (date + '%y%m%d ')to_dir= "/home/wyl/document/Daily/230_database"Date_dir=${to_dir} "/" ${date}Hostname= ' 192.168.1.230 'Username= ' Root 'Password= ' Tianji 'if [!-d "$DATE _dir"]; Thenmkdir $DATE _dirFiMysqldump--no-data-h$hostname-u$username-p$password--all