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- How to restart a NoSQL database service like MongoDB?
- If we're going to use a NoSQL database for our application, then we need something fast and easy to use. We learned that "NoSQL" doesn't necessarily mean "no maintenance." We considered using a managed hosting service like MongoDB's Atlas or Amazon's DynamoDB, but we chose to host it ourselves, either on our premises or in our own cloud instance. We evaluated several NoSQL options, including Redis and Cassandra, and chose MongoDB. We can install it by installing from a Linux distribution, using Mongo’s repository, or using snap. But if something goes wrong, we may need to restart it. us
- MongoDB 1164 2023-08-28 08:01:17
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- How to install MongoDB on Ubuntu 16.04
- MongoDB is a cross-platform, document-oriented database that provides high performance, high availability, and easy scalability. MongoDB is dedicated to the concepts of collections and documents. MongoDB maintainers have not yet released official Ubuntu 16.04 MongoDB packages. This article explains "How to install MongoDB on Ubuntu and start the MongoDB service at boot time" Adding MongoDB Repository MongoDB is usually included in the Ubuntu package repository. However, legitimate MongoDB repositories provide the latest version changes in an approved manner. To perform this process, we first have to import the key of the legitimate MongoDB repository using the following command - $sud
- MongoDB 863 2023-08-27 22:13:05
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- Show database in MongoDB
- To display the number of databases in MongoDB, you need to create at least one document in the database. Suppose you have created a database but have not added any documents to it. Then that particular database will not be visible in the database list. Following is the query to create database->useapp;switchedtodbapp Here is the query to show all databases->showdbs;This will produce the following output. The new database "app" will not be visible because we have not added at least one document in it - admin
- MongoDB 1034 2023-08-26 20:45:02
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- How to generate ObjectID in MongoDB?
- To generate ObjectID, use the following syntax in MonogDBshell − newObjectId() Let us implement the above syntax to generate ObjectID in MongoDB −> newObjectId() ObjectId("5cd7bf2f6d78f205348bc646")>newObjectId()ObjectId("5cd7bf316d78f205348bc647")>newObjectId( )ObjectId(&
- MongoDB 1861 2023-08-24 12:01:07
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- Connect MongoDB with NodeJS
- mongodb.connect introduces this method for connecting the MongoDB server to our Node application. This is an asynchronous method in the MongoDB module. Syntax mongodb.connect(path[,callback]) Parameters • path – The server path and port where the MongoDB server is actually running. •callback – This function will provide a callback if any error occurs. Install Mongo-DB Before trying to connect the application with Nodejs, we first need to setup the MongoDB service
- MongoDB 1683 2023-08-23 18:21:02
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- What are the mongodb startup commands?
- The mongodb startup commands include mongod, mongod --config, mongod --fork, mongod --auth, mongod --replSet, mongod --shardsvr, mongod --configsvr, etc. Detailed introduction: 1. mongod, used to start the server process of MongoDB; 2. mongod --config specifies a configuration file to start MongoDB, etc.
- MongoDB 6279 2023-08-08 14:52:00
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- An in-depth analysis of the MongoDB storage engine (with schematic diagram)
- This article will introduce you to the relevant knowledge about mongodb and introduce the storage engine in MongoDB. I hope it will be helpful to you!
- MongoDB 2942 2022-12-06 17:00:18
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- MongoDB 4.X basic tutorial
- MongoDB is a product between a relational database and a non-relational database. It is the most feature-rich among non-relational databases and is most like a relational database.
- MongoDB 1596 2022-07-20 09:47:22
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- Let's talk to you about the rich index types in MongoDB
- This article will take you to understand MongoDB and introduce the rich index types in MongoDB. I hope it will be helpful to everyone!
- MongoDB 2716 2022-02-17 10:59:16
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- Let's talk about several issues about MongoDB replica sets
- The MongoDB tutorial explains why you should use replica sets: 1. Back up data through the built-in mongo_dump/mongo_restore tool. Backup can also be achieved, but after all, it is not as convenient as the automatic synchronization backup of replica sets. 2. Automatic failover. A replication set is deployed. When the primary node fails...
- MongoDB 3384 2020-12-21 18:01:13
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- Update of MongoDB document (php code example)
- MongoDB update documents are divided into two categories: document replacement, which completely replaces the old document modifier with a new document, and modifies part of the document. Document replacement is very simple. Let’s take a look at the demonstration...
- MongoDB 2367 2020-08-24 18:02:10
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- Creation and deletion of MongoDB documents (php code example)
- Note that all code examples in this article are demonstrated using PHP code. Install the MongoDB extension extension package installation address: https://pecl.php.net/package/mongodb Download the most stable version, and then upload the extension package to the server.
- MongoDB 2439 2020-08-21 13:25:42
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- Detailed explanation of the characteristics, principles, usage scenarios, and application cases of MongoDB
- MongoDB is a product between a relational database and a non-relational database. It is the most feature-rich among non-relational databases and is most similar to a relational database. The data structure it supports is very loose and is a bson format similar to json, so it can store more complex data types.
- MongoDB 7063 2020-08-19 11:51:53
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- A popular explanation of the concepts of MongoDB databases, collections, and documents
- For relational databases, we know that there are multiple tables in the database and multiple rows of data in the data tables. For MongoDB, there are multiple collections in the database, and the collections contain multiple documents. The database concept of MongoDB is similar to that of Mysql. Each database can set independent permissions.
- MongoDB 3691 2020-08-19 11:32:52
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