Introduction to Mongodb Data Export Command mongoexport and Import Command mongoimport

Reprinted: http://chenzhou123520.iteye.com/blog/1641319 I. Export tool mongoexport MongoDB The mongoexport tool can export a collection into JSON or CSV formats. You can export data items by specifying parameters, or you can export data by specifying conditions. The specific usage of mongoexport is as follows: [root@localhos ...

Posted by roxiroxi on Sun, 07 Jul 2019 01:13:10 +0200

Mongodb Basic Usage

SQL Terms/Concepts MongoDB Terms/Concepts Explanation/Explanation database database data base table collection Database tables/collections row document Data Record Row/Document column field Data Fields/Fields index index Indexes table joins Table connection, not supported by MongoDB primary key p ...

Posted by alex.hughson on Wed, 03 Jul 2019 19:15:00 +0200

mongodb Cluster in Centos

Blogger: haitianis good The original blog website: http://blog.csdn.net/haitianisgood/article/details/73682739 mongodb Cluster in Centos Summary A mongod service can have multiple databases, and each database can have multiple tables. The table name here is collection. Each collection can store multiple document. Each document ca ...

Posted by twizler on Wed, 19 Jun 2019 23:49:19 +0200

MongoDB Service Configuration Series Problems

MongoDB Service Configuration Series Problems Configure services through configuration files: dbpath=F:\Program\DATA\Mongo\db #Data Storage Path logpath=F:\Program\DATA\Mongo\logs\mongo.log #Journal Storage Strength logappend=true #Log Writing: Addition port=27017 #port #auth=true #Certification or not bind_ip=0.0.0.0 serviceName = Mong ...

Posted by nikkio3000 on Sun, 16 Jun 2019 20:07:18 +0200

Crawler processes and Python third-party library usage

Usages such as requests pymongo BS4 from future import print_functionPrit does not need parentheses in #python2.X, but it does in python3.X.Add this sentence at the beginning, even after python2.X, using print requires bracketing like python3.X import requests Import requests without requests at https://pip.pypa.io/en/s ...

Posted by cac_azure03 on Sat, 15 Jun 2019 18:38:15 +0200

Noejs implements restful API

This paper focuses on the design and implementation of restful interface, using express and monogoose.Click on the express tutorialClick on the monogoose tutorialES6 Introduction Course - Ruan Yifeng's blog Noe4.x support for ES6 is not perfect and a higher version of node is recommended.In practical development, add'use strict'to the header of ...

Posted by stevenrhiggins on Sun, 09 Jun 2019 00:51:31 +0200

Introduction to MongoDB Rookie (1): Concepts and Additions, Deletions, Revisions, and Indexing

I. Start-up Specify - dbpath as the storage folder and start with the default port mongod.exe --dbpath c:\data\db 2. windows Adding Services To set mongodb as a windows service mongod.exe --bind_ip yourIPadress --logpath "C:\data\dbConf\mongodb.log" --logappend --dbpath "C:\data\db" --port yourPortNumber --serviceName "YourServiceName" ...

Posted by Michael Lasky on Sat, 08 Jun 2019 01:15:02 +0200

MongoDB Common Basic Commands

mongoDB database The concept of mongoDB database An instance of MongoDB can have one or more independent databases, each with its own collection. aggregate Collections can be seen as tables with dynamic schemas. File Documents are the basic data units in MongoDB, similar to rows of relational database tables. Documents are an ord ...

Posted by jackel15 on Sat, 08 Jun 2019 01:10:51 +0200

Design Patterns Written for People

The original text is included in the My blog Welcome. This article is aimed at https://github.com/kamranahme... The translation and notes will be combined with some personal understanding. If you find obvious misunderstandings and omissions, please leave a message to correct them. Thank you very much. Interpretation of the title: Design patter ...

Posted by PGTibs on Mon, 03 Jun 2019 22:24:40 +0200

mongodb database and data paging

When working on a small project of your own, you learned about mongodb non-relational databases and used mongoose encapsulated query methods, including the limit and skip methods used for database paging, which are recorded here. 1. mongodb database connection Referring to the official website documents, the corresponding parameters are as foll ...

Posted by Torleif on Sun, 19 May 2019 05:58:20 +0200