Is it necessary for a developer to be familiar with MongoDB?
What is MongoDB?
MongoDB is a NoSQL database management system that is free and open source.NoSQL is a database system that can be used instead of traditional relational databases. When dealing with massive amounts of scattered data, NoSQL databases come in handy.MongoDB is a database that may be used to manage document-oriented data as well as store and retrieve data.
How it works?
MongoDB uses records, which are composed of documents that include a data structure composed of field and value pairs. The document is the fundamental unit of data in MongoDB.
The documents are similar to JavaScript Object Notation in appearance, but they employ a version known as Binary JSON (BSON). The benefit of utilizing BSON is that it supports a wider range of data formats. The fields in these documents are equivalent to the columns in a relational database.
According to the MongoDB user handbook, the values contained can be of many data kinds such as other documents, arrays, and arrays of documents.
Documents will also include a primary key as a unique identifier.
Collections
Collections are groups of documents that serve as the equivalent of relational database tables. Collections can contain any type of data, but the data in a collection cannot be spread across multiple databases.
MongoDB vs MySQL
SQL and NoSQL databases are both tools for storing data. The distinction is in the manner in which the information is organized internally.
A relational model supports a relational database. The data in this model is highly structured. A data model is defined by assembling a set of tables that contain records with a fixed number of fields that contain a specific data type.
Using tools like foreign keys, the database makes it simple to enforce consistency across the model. Furthermore, having a strong system in place aids in the prevention of simple inconsistencies within the database.
A relational model is not used in a NoSQL database. There are no tables, records, or fields to speak of. NoSQL databases, on the other hand, have collections, documents, and properties.
MongoDB compass
MongoDB Compass is a powerful GUI for querying, aggregating, and analyzing your MongoDB data in a visual environment.
Compass is free to use and source available and can be run on macOS, Windows, and Linux.
sample query :-:
Find One
In MongoDB, we use the find and findOne methods to find data in a collection. Just like the SELECT statement is used to find data in a table in a MySQL database.
To select data from a collection in MongoDB, we can use the findOne() method.
The findOne() method returns the first occurrence in the selection.
The first parameter of the findOne() method is a query object. In this example, we use an empty query object, which selects all documents in a collection (but returns only the first document).
What is MongoDB Atlas?
MongoDB Atlas is a multi-cloud database service by the same people that build MongoDB. Atlas simplifies deploying and managing your databases while offering the versatility you need to build resilient and performant global applications on the cloud providers of your choice.
You can Build with MongoDB on AWS, Azure, and Google Cloud
MongoDB Atlas makes it easy to deploy and manage databases on-demand when and where you need them.
Get started with MongoDB Atlas -:
Why should you use MongoDB?
This method solved one of the most serious limitations of traditional database systems: scalability. With the ever-changing needs of businesses, database systems have to be changed as well. MongoDB has incredibly high scalability. It makes data retrieval easier and offers continuous and automatic integration. In addition to these benefits, there are several reasons why you should utilize MongoDB:
→No downtime while the application is being scaled
→Performs in-memory processing
→Text search
→Graph processing
→Global replication
→Economical
Furthermore, businesses are increasingly discovering that MongoDB checks all the right boxes when it comes to meeting business requirements. MongoDB offers the ideal combination of technology and data for gaining a competitive advantage. Because it significantly reduces risks, it is best suited for mission-critical applications. It sped up the time to value (TTV) and reduced the total cost of ownership and creates applications that would be impossible to create with traditional relational databases.
