Analysis on the speed of inserting a large amount of data into MongoDB database

Requirement background: a certain timing task generates thousands or more JSON data. This data has not been fully written into the database, and the data of the next scheduled task has been generated. How to solve the data congestion caused by this? When spring boot is used to insert data into MongoDB database, the save method in MongoTempla ...

Added by ghettopixel on Tue, 30 Jun 2020 19:43:06 +0300

CURD basic operation of MongoDB

Note: This paper is based on MongoDB 4.2.6 1. Delete Delete a document > db.bb.find().pretty() { "_id" : ObjectId("5ed6549830571733ccb3d678"), "jordan" : 23, "haha" : "ending" } { "_id" : ObjectId("5ed6549830571733ccb3d679"), "kobe" : 24, "haha" : "ending" } > db.bb.remove({jordan: 23}) ...

Added by StefanRSA on Sun, 21 Jun 2020 09:46:27 +0300

Mixed query of tp5+Mongodb and Mysql database

Preface MongoDB mass data query is fast without data model Suitable for log database Or the intermediate database reads and stores some business data to be read from the MySQL database MongoDB is not suitable for multi table transaction function, and there is not a good determination mechanism for write operation. It is not suitabl ...

Added by steved on Tue, 05 May 2020 01:46:33 +0300

Elastsearch basic query (open)

Elastsearch basic query Elasticsearch is a very powerful full-text search engine. The purpose of using elasticsearch is to quickly query the desired data. Basic query: query with elastic search built-in query criteria Composite query: a composite query that combines multiple basic queries Filter: when querying, filter out the desired data ...

Added by natronp on Mon, 04 May 2020 06:30:21 +0300

computed -- real time calculation attribute

Project: https://github.com/ccyinghua/vue-node-mongodb-project/blob/master/07-shoppingCart.md The calculated function of real-time calculation attributes, real-time calculation attributes, is just the function writing method, and there is no need to declare in data. Some business logic codes can be placed in computed. Remember to return. exampl ...

Added by Blob on Sun, 03 May 2020 01:11:13 +0300

Operation of embedded set in springboot~mongo

As for the operation of mongodb's embedded objects, uncle has said in the. net platform. At the same time, uncle has encapsulated mongo's storage and is very convenient to use. In the java springboot framework, of course, there are corresponding methods. Let's talk about it. I hope it can help the students who just contacted mongodb! Data stru ...

Added by harlowhair on Thu, 02 Apr 2020 05:26:27 +0300

New features interpretation | 8.0 new DML statement (TABLE & VALUES)

Author: Yang Taotao Senior database expert, specializing in MySQL for more than ten years. Good at mysql, PostgreSQL, MongoDB and other open-source database related backup and recovery, SQL tuning, monitoring operation and maintenance, high availability architecture design, etc. At present, he is working in aikesheng, providing MySQL related ...

Added by akop on Wed, 25 Mar 2020 11:15:53 +0200

Spring Boot Integration - MongoDB Integration 4 (MongoDB grouping de-duplication and MongoDB table query)

Front of Article About Versions rely on Edition springboot 2.0.8.RELEASE mongodb 4.0.14 This content is just to introduce the most basic use and configuration of mongodb. As a well-known database, it has quite a lot of advanced usage. It will expand to introduce a lot of content. Of cours ...

Added by coder9 on Fri, 24 Jan 2020 06:42:43 +0200

MongoDB 4.2 Kernel Resolution - Change Stream

MongoDB has supported the change stream capability since version 3.6 (many enhancements have been made in versions 4.0 and 4.2) for subscribing to modifications within MongoDB. change stream can be used for incremental data migration, synchronization between MongoDB and for applying MongoDB's incremental subscription to other related systems; f ...

Added by hubbardude on Sun, 05 Jan 2020 05:42:03 +0200

hubot + rocket configuration document

1. Install hubot 1.1 install node.js and npm yum install -y nodejs npm npm install -g inherits n yum install -y curl 1.2 install yo generator hub npm install -g yo generator-hubot npm install coffee-script -save //The following packages are optional: npm install hubot-test-helper --save-dev npm install expect.js npm ...

Added by agoni on Fri, 03 Jan 2020 03:14:46 +0200