### Understanding Structured Data
Structured data refers to information that is organized in a predefined format, making it easily searchable in databases. It typically resides in fixed fields within a record or file and is often managed using a structured query language (SQL).

### Analyzing the Options
1. **Business notes**: These are often unstructured as they can vary in format and content.
2. **Email message**: Generally, email messages are considered unstructured data since the content varies widely and lacks a defined structure.
3. **Relational database**: This is a prime example of structured data. Relational databases are organized in tables with specific fields and data types, making it searchable and manageable.
4. **Calendar**: While calendars can contain structured elements like dates and events, they may also include unstructured data in descriptions. However, generally, they are structured in terms of their organization.

### Final Answer
The examples of structured data from the options provided are:
- **Relational database**
- **Calendar** (to some extent, depending on how structured it is)

Thus, the clear selection is **Relational database**.

Question

### Understanding Structured Data
Structured data refers to information that is organized in a predefined format, making it easily searchable in databases. It typically resides in fixed fields within a record or file and is often managed using a structured query language (SQL).

### Analyzing the Options
1. **Business notes**: These are often unstructured as they can vary in format and content.
2. **Email message**: Generally, email messages are considered unstructured data since the content varies widely and lacks a defined structure.
3. **Relational database**: This is a prime example of structured data. Relational databases are organized in tables with specific fields and data types, making it searchable and manageable.
4. **Calendar**: While calendars can contain structured elements like dates and events, they may also include unstructured data in descriptions. However, generally, they are structured in terms of their organization.

### Final Answer
The examples of structured data from the options provided are:
- **Relational database**
- **Calendar** (to some extent, depending on how structured it is)

Thus, the clear selection is **Relational database**.

Knowee AI · Accepted Answer

### Understanding Structured Data
Structured data refers to information that is organized in a predefined format, making it easily searchable in databases. It typically resides in fixed fields within a record or file and is often managed using a structured query language (SQL).

### Analyzing the Options
1. **Business notes**: These are often unstructured as they can vary in format and content.
2. **Email message**: Generally, email messages are considered unstructured data since the content varies widely and lacks a defined structure.
3. **Relational database**: This is a prime example of structured data. Relational databases are organized in tables with specific fields and data types, making it searchable and manageable.
4. **Calendar**: While calendars can contain structured elements like dates and events, they may also include unstructured data in descriptions. However, generally, they are structured in terms of their organization.

### Final Answer
The examples of structured data from the options provided are:
- **Relational database**
- **Calendar** (to some extent, depending on how structured it is)

Thus, the clear selection is **Relational database**.

Which of the following items are examples of structured data? Select all that apply.1 分Business notesEmail message Relational databaseCalendar

Question

Which of the following items are examples of structured data? Select all that apply.

Solution

Understanding Structured Data

Analyzing the Options

Final Answer

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