Begin by accessing your SAP Fieldglass account. Navigate to the reporting or export section where you can generate reports. Create a report that includes all the data you wish to move to DuckDB. Once the report is generated, export it as a CSV file, which is a format easily ingested by DuckDB.

Ensure that DuckDB is installed on your local machine. You can download it from the official DuckDB website and follow the installation instructions for your operating system. Once installed, you can interact with DuckDB through its command-line interface or through a Python or R environment.

Open your command-line interface or programming environment where DuckDB is accessible. Create a new database in DuckDB by executing the appropriate command:
```
duckdb my_database.db
```
This command initializes a new database file named `my_database.db`.

Before importing data, define the table structure in DuckDB to match the fields in your SAP Fieldglass CSV export. Use the DuckDB SQL interface to create a table with the necessary columns and data types:
```sql
CREATE TABLE fieldglass_data (
column1_name column1_type,
column2_name column2_type,
...
);
```
Replace `column1_name`, `column2_name`, etc., with the actual column names and types from your CSV file.

Use the DuckDB SQL interface to load the CSV file into the created table. You can execute the following command:
```sql
COPY fieldglass_data FROM 'path/to/your/exported_file.csv' (DELIMITER ',', HEADER, AUTO_DETECT);
```
Replace `'path/to/your/exported_file.csv'` with the actual path to your CSV file.

After loading the data, it's crucial to verify the integrity of the data. Use simple SQL queries to inspect the data and ensure that it matches your expectations:
```sql
SELECT FROM fieldglass_data LIMIT 10;
```
Check for any anomalies or missing data that might have occurred during the import process.

With your data now in DuckDB, you can perform any necessary analysis using SQL queries directly within DuckDB. If further processing is needed or if you need the data in another format, you can export it back to CSV or other formats using:
```sql
COPY fieldglass_data TO 'path/to/output_file.csv' (DELIMITER ',');
```
This step ensures that your data is flexible for future use.

By following these steps, you'll successfully move data from SAP Fieldglass to DuckDB without relying on third-party connectors or integrations.