Begin by logging into your Yandex Metrica account. Navigate to the "Reports" section and select the data you wish to export. Use the "Export" option to download the data in a suitable format, such as CSV or TSV, which can be easily managed and transferred.

Open the exported file in a spreadsheet application like Microsoft Excel or Google Sheets. Review the dataset to ensure it is clean and organized, removing any unnecessary columns or rows. Make sure the data types (e.g., dates, numbers) are consistent and properly formatted to prevent issues during the import process.

Access your Starburst Galaxy account or create one if you haven't already. Follow the prompts to set up a new environment. This typically involves specifying your region and any other settings pertinent to your data storage needs.

In your Starburst Galaxy environment, navigate to the SQL Editor or the Schema Management section. Use SQL commands to create a new schema that will house your Yandex Metrica data. Define the schema with appropriate tables and data types that match the structure of your exported data file.

Convert your cleaned data into a SQL-compatible format if necessary. This involves ensuring that your data types align with those defined in your Starburst Galaxy schema. Use tools or scripts to generate SQL `INSERT` statements from your CSV or TSV data, which can be executed in the Starburst Galaxy environment.

Access the SQL Editor in your Starburst Galaxy environment. Copy and paste your SQL `INSERT` statements into the editor, or use the command line interface if available, to execute the statements and load the data into the schema you created. Monitor the process for any errors or issues.

After the data upload is complete, execute SQL queries in Starburst Galaxy to verify that the data has been imported correctly. Check for consistency, accuracy, and completeness. Compare the imported data against the original dataset to ensure no data loss or corruption has occurred during the transfer process.