How do you use MongoDB?

Asked By: Maeva Fiume | Last Updated: 15th January, 2020
Category: technology and computing data storage and warehousing
4.6/5 (16 Views . 27 Votes)
Open up another shell and type mongo to connect to MongoDB database server.
  1. Finding the current database you're in. db.
  2. Listing databases. show databases.
  3. Go to a particular database. use <your_db_name>
  4. Creating a Database.
  5. Creating a Collection.
  6. Inserting Data.
  7. Querying Data.
  8. Updating documents.

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Similarly, you may ask, what is MongoDB and how it works?

MongoDB is an object-oriented, simple, dynamic, and scalable NoSQL database. It is based on the NoSQL document store model. The data objects are stored as separate documents inside a collection — instead of storing the data into the columns and rows of a traditional relational database.

Furthermore, how do I start MongoDB? To start MongoDB, run mongod.exe from the Command Prompt navigate to your MongoDB Bin folder and run mongod command, it will start MongoDB main process and The waiting for connections message in the console.

Beside this, why you should never use MongoDB?

But if there's value in the links between documents, then you don't actually have documents. MongoDB is not the right solution for you. It's certainly not the right solution for social data, where links between documents are actually the most critical data in the system. So social data isn't document-oriented.

Why we use MongoDB instead of MySQL?

One single main benefit it has over MySQL is its ability to handle large unstructured data. It is magically faster because it allows users to query in a different manner that is more sensitive to workload. Developers note that MySQL is quite slower in comparison to MongoDB when it comes to dealing with large databases.

39 Related Question Answers Found

Is MongoDB a server?

MongoDB is a cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schema. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL).

What are the key features of MongoDB?

These are some important features of MongoDB:
  • Support ad hoc queries.
  • Indexing.
  • Replication.
  • Duplication of data.
  • Load balancing.
  • Supports map reduce and aggregation tools.
  • Uses JavaScript instead of Procedures.
  • It is a schema-less database written in C++.

What are the advantages of MongoDB?

Advantages of MongoDB over RDBMS
Structure of a single object is clear. No complex joins. Deep query-ability. MongoDB supports dynamic queries on documents using a document-based query language that's nearly as powerful as SQL.

Who uses MongoDB?

We have found 37,516 companies that use MongoDB.

Top Industries that use MongoDB.
Industry Number of companies
Computer Software 11060
Information Technology and Services 4111
Internet 1219
Hospital & Health Care 847

Why is it called MongoDB?

The name Mongodb is from humongous. An open-source document-based database system. “MongoDB” derives from the word “humongous” because of the database's ability to scale up with ease and hold very large amounts of data. MongoDB stores documents in collections within databases.

Is MongoDB a programming language?

MongoDB supports various programming languages like C, C# and . NET, C++, Erlang, Haskell, Java, Javascript, Perl, PHP, Python, Ruby, Scala (via Casbah). Which allows a developer to use a single programming language for both client and server side code. MongoDB is easily installable.

When should we use MongoDB?

MongoDB by default prefers high insert rate over transaction safety. If you need to load tons of data lines with a low business value for each one, MongoDB should fit. Don't do that with $1M transactions recording or at least in these cases do it with an extra safety.

Where is MongoDB data stored?

By default, MongoDB listens for connections from clients on port 27017, and stores data in the /data/db directory. If you want mongod to store data files at a path other than /data/db you can specify a dbPath . The dbPath must exist before you start mongod .

Does Facebook use MongoDB?

MongoDB was first released as an open-source project in 2009. Facebook already had 360 million users in 2009. Perhaps if Facebook were starting today, they would consider using MongoDB. MongoDB was first released as an open-source project in 2009. Facebook already had 360 million users in 2009.

Is MongoDB worth learning?

Absolutely Yes. MongoDB although clearly the favorite is just one of the many commonly used NoSQL DBs. So, yes you should learn it, not just it, but all NoSQL DB systems because I'm of the opinion that Web technologies are rapidly evolving today, standards are no longer standards for more than 6 months.

Is MongoDB still popular?

Why MongoDB is the most popular NoSQL database today. If NoSQL is the king, MongoDB is surely its crown jewel. With over 15 million downloads and counting, MongoDB is the most popular NoSQL database today, empowering users to query, manipulate and find interesting insights from their data.

Is MongoDB worth learning 2019?

Yes it is worth learning MongoDB in 2019. MongoDB is an open-source document-based database management tool that stores data in JSON-like formats. It is a highly scalable, flexible and distributed NoSQL database. And also it is better for you to learn MongoDB from the Online Courses.

Is MongoDB difficult to learn?

MongoDB is quite easy to learn and also implement in project. With MongoDB, no downtime is seen even a project with trillions of transactions. MongoDB supports dynamic queries on documents using a document-based query language that's nearly as powerful as SQL.

Is MongoDB good for production?

Using it in production doesn't mean it's production-ready. I consider production-ready for a datastore to mean that it's both stable, reliable, and has a strong developer community. In my opinion, MongoDB is *not* production-ready.

How is data stored in MongoDB?

In MongoDB, data is stored as documents. These documents are stored in MongoDB in JSON (JavaScript Object Notation) format. JSON documents support embedded fields, so related data and lists of data can be stored with the document instead of an external table. JSON is formatted as name/value pairs.

Is MongoDB a distributed database?

MongoDB is an open-source document-based database management tool that stores data in JSON-like formats. It is a highly scalable, flexible, and distributed NoSQL database.

Is MongoDB good for social network?

Given that social data has various relations, to users in particular, it lends better to a relational database over time. Even though a NoSQL solution like MongoDB can seem like a great way to retrieve lots of data quickly, the relational nature of users in a social network can cause lots of duplication to occur.