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Introduction To MongoDB

In this article, we will provide a brief introduction to MongoDB.

How The Data Is Stored In MongoDB?

Picture showing the representation of how the documents are stored in MongoDB

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Unlike a relational database, MongoDB stores the data in collections. A collection holds one or more documents.

Relational Database VS MongoDB

Relational Database	MongoDB
Table	Collection
Rows	Documents
Column	Field

BSON

BSON stands for Binary JavaScript Object Notation. BSON is a binary file format that stores serialized JSON documents in a binary-encoded format. While storing, the JSON data is converted into BSON using the MongoDB drivers.

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Benefits Of BSON Format Over JSON

BSON is more lightweight than JSON
BSON traverses much more quickly than the JSON format
BSON supports efficient data encoding and decoding

Why BSON Is Lightweight Compared To JSON?

In the case of JSON, the extra bits of information like checksum, parity, etc. are added to the header during data transmission. This extra information creates an overhead.

BSON keeps this overhead to the bare minimum and due to this reason, the BSON is lightweight as compared to JSON.

Data Types In BSON

Data Type	Description
Double	Represents the floating-point numbers
String	Represents the UTF-8 encoded strings
Object	Represents embedded documents
Array	Represents arrays of elements
Binary Data	Represents binary data such as images or other blobs
ObjectID	Represents a unique identifier for documents
Boolean	Represents Boolean values of true or false
Date	Represents a date and time value
Null	Represents a null value
Regular Expression	Represents regular expression patterns
JavaScript	Represents JavaScript code
JavaScript (with scope)	Represents JavaScript code with additional scope
32-bit Integer	Represents 32-bit signed integers
Timestamp	Represents a BSON timestamp
64-bit Integer	Represents 64-bit signed integers
Decimal128	Represents 128-bit decimal floating-point numbers
Min Key	Represents a lower bound for comparison purposes
Max Key	Represents an upper bound for comparison purposes

Posted By -	Karan Gupta

Posted On -	Thursday, February 2, 2023

Updated On -	Tuesday, February 20, 2024

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