MONGODB Datatypes in MongoDB ~ GNIITHELP

Datatypes in MongoDB

It is known that the MongoDB stores the JSON data in a binary encoded format called BSON, where JSON data model actually extends the BSON in order to provide more flexibility with the additional data types and helps in easily encoding and decoding the data across various programming languages. By default, there is no support for the datatypes like date in JSON. But, BSON provides that feature.





MongoDB supports the below list of datatypes. Each datatype in MongoDB possess a unique number.


 


Datatype	Number	Description
Double	1	Used to stored floating point values
String	2	Commonly used datatype and it is UTF-8 valid
Object	3	Used for storing embedded objects
Array	4	Used for storing embedded objects
Binary Data	5	Used to store binary data
Undefined	6	Used to store undefined value
Object Id	7	Used to store document's ID
Boolean	9	Used to store Boolean value
Date	10	Used to store current date time in UNIX format.
Null	11	Used to store null value
Regular Expression	12	Used to store regex
Javascript	13	Used to store JavaScript data without scope
Symbol	14	Basically used to store string, but reserved for languages that use specific symbol
Javascript with scope	15	Used to store JavaScript data with scope
Integer	16 & 18	Used to store numerical value
Timestamp	10	Used to track when a document is modified.
Min/Max Key	255/127	Used to compare value against lowest and highest BSON elements