What data types does mongodb support?

MongoDB supports a variety of data types, including text strings, integers, floating point types, Boolean values, dates, unique identifiers, as well as arrays, objects, binary data and custom data types. MongoDB adopts a document structure, supports nested data, and provides automatic type conversion functions.

Data types supported by MongoDB

MongoDB is a NoSQL database that supports multiple data types to meet different needs. Data storage needs.

Core Data Type:

• String: Text String
• Integer: 32-bit integer
• Long: 64-bit long integer
• Floating Point: Double precision floating point
• Double: 64-bit floating point type
• Boolean: Boolean value
• Date: Date and time
• ObjectId: A unique 12-byte identifier automatically generated by MongoDB

Other data types:

• Array: An ordered collection of elements
• Object: A collection of key-value pairs
• Binary Data (Binary): Storage Binary data
• Custom: MongoDB can be extended with custom data types

Document structure:

MongoDB uses The document structure is used to store data. The document is composed of fields, and each field can store a value of a specified type.

Nested data:

MongoDB supports nested data, allowing other documents or arrays to be embedded within a document. This provides flexible data modeling and relational modeling.

Automatic type conversion:

MongoDB can automatically convert data types to the appropriate type. For example, if you insert a string into a numeric field, MongoDB automatically converts it to a number.

Note:

• Date types in MongoDB are stored in ISO 8601 format.
• ObjectId is a data type unique to MongoDB and is used to uniquely identify documents.
• Custom data types need to be declared and verified using MongoDB's Schema Validation function.

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