Getting started with MongoDB's Basic Data Types

Basic Data Types)

1. null

Can be used to indicate null and non-existent fields (field)

Eg: {"X",: NULL}

2. Boolean)

Like the Boolean Type in Java, there are only two values: 'true' or 'false'

Eg: {"X", true}

3. 32-bit integer (32-bit integer)

This type cannot be displayed in shell. Javascript only supports 64-bit floating point numbers. Therefore, 32 integer T is converted.

4. 64-bit integer

(Same as 3)

5. 64-bit floating point (64-bit floating point numbers)

All numbers in shell are of this type.

Eg: {"X", 3.14} is also allowed {"X": 3}

6. String (string type)

All UTF-8 characters can be represented in string type

Eg: {"X": "foobar "}

7. Symbol)

Shell does not support the symbol type. All symbols obtained from the database are converted to the string type.