create database mongodb atlas

: {cutepath:/^122-133-1456 (-\d+) *$/, Avail.status: {$ Lt:5}, $or: [{_id: {$lt: 3310}}, {_id: {$gt: 8520, $lt: 8530}}, {_id: {$gt: 9720, $lt: 9730}}}, $orderby : {avail.status:1, Avgrate:-1}} ntoreturn:200 ntoskip:0 nscanned:18764 scanandorder:1 keyupdates:0 numyields:10 Lock S (micros) r:217999 nreturned:200 reslen:563505 116msIf nscanned (the number of records scanned) is much larger than nreturned (the number of records that return results), then we need to consider Gazzo to optimize record

\ ""}})Db.table2.find ({text:{$search: "AA bb"}},{score:{$meta: "Textscore"}}). sort ({score:{$meta: "Textscore"}})//Use fullFive ways to index the text;Note: Full-text indexing can only specify one "text"; MongoDB temporarily does not support Chinese;Index Important properties:1. First name (name);2. Uniqueness (unique);3. sparsity (sparse);4. Whether to delete periodically (expireafterseconds);7. Location Index:7.1 2d Index7.2 2dsphere IndexThird,

list, use the command show DBS> Show DBSAdmin 0.000GBConfig 0.000GBLocal 0.000GBThe database created by MyDB does not exist in the list. To display the database, you need to insert it into at least one file.> Db.mydb.insert ({"Name": "User1"})Writeresult ({"ninserted": 1})> Show DBSAdmin 0.000GBConfig 0.000GBLocal 0.000GBMyDB 0.000GB>4. Add an administrative user to a single

Tags: Go import sort sort check Delete table ref and obj form SamReference URL: 1, http://www.runoob.com/mongodb/mongodb-intro.html 2, http://www.runoob.com/python/python-mysql.html 3, http://www.cnblogs.com/descusr/archive/2011/11/15/2249391.html From Pymongo Import * # Guide Package con = Connection (...) # link db = con.database # link database db.authenticate

Using System;Using System. Collections. Generic;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Linq;Using System. Text;Using System. Windows. Forms;Using MongoDB. Driver;Using MongoDB. Bson; Namespace mangodb{Public partial class Form1: Form{Public Form1 (){InitializeComponent ();} Private void btn_import_Click (object sender, EventArgs e){//

Brief introductionMean is a full stack development framework for JavaScript. More aboutThe storage of persistent data with MongoDB is a part of mean web full stack development.MongoDB is a product between a relational database and a non-relational database, and is the most versatile and most like relational database in

This article mainly introduces the MongoDB database operation class sharing implemented by PHP, and the operation class of the template mysql version. For more information, see This article mainly introduces the MongoDB database operation class sharing implemented by PHP, and the operation class of the template mysql v

/*** MongoDB Class * * Examples:* $mongo = new Hmongodb ("127.0.0.1:11223");* $mongo->selectdb ("test_db");* Create an index* $mongo->ensureindex ("test_table", Array ("id" =>1), Array (' unique ' =>true));* Get Records of tables* $mongo->count ("test_table");* Insert Record* $mongo->insert ("test_table", Array ("id" =>2, "title" = "Asdqw"));* Update record* $mongo->update ("test_table", Array ("id" =>1), A

1.1 Inserting and saving a documentInserting is the basic method of adding data to MongoDB. Using the Insert method on the target machine, insert a document:> Db.foo.insert ({"bar""baz"})This will add a "_id" key to the document (if it is not) and then save it to MongoDB.1.1.1 BULK InsertIf you are inserting multiple documents, using BULK INSERT is faster. Bulk INSERT can pass a document-formed array to the

Let's start by introducing the basic concepts of MongoDB:The left column is the term for the relational database, and the right column is the term NoSQL and MongoDB.Database:database DatabaseTable:collection Database Tables/CollectionsRow:document data record lines/documentsColoum:field data fields/fieldsIndex:index IndexTable joins: Tables connection, MongoDB no

automatically handles data and load across clusters, automatically redistributes documents, and The user's request is routed to the correct machine. This way, developers can focus on writing applications without having to think about how to scale. If a cluster needs more capacity, just add a new server to the cluster. MongoDB will automatically transfer existing data to the new server 3. Rich function As a general-purpose

Tags: mongodb database master-Slave data synchronizationIn the previous series of articles, we described the basic operations of MongoDB, advanced queries, and the use of indexes. This blog mainly describes how the Windows system to create master-slave database synchronizati

Label:1. Download the corresponding package to the MONGODB website 2. Unzip the tar zxvf Mongodb.taz 3. Move the extracted folder to the directory you specified MV MongoDB./develop-tools 4. Add the Mongod command to the environment variable VI ~/.bash_profile Mongodb_home=/users/dujie/develop-tools/mongodb Path= $PATH: $MONGO _home 5.

In the previous article, the hacker has already moved on to mongodb's installation on the Windows platform, and double-click monge.exe to start data operations on the database. Insert record: [insert] Next we will create the j and t objects and save them to the test set. Insert a record (id 3 and name Max): query records The previous blog has installed and configured mo