"T" ใน ELT

# Complete building the transform() function
def transform(source_table, target_table):
  data_warehouse.____(f"""
  CREATE TABLE {target_table} AS
      SELECT
          CONCAT("Product ID: ", product_id),
          quantity * price
      FROM {source_table};
  """)

extracted_data = extract(file_name="raw_sales_data.csv")
load(data_frame=extracted_data, table_name="raw_sales_data")

# Populate total_sales by transforming raw_sales_data
____(source_table="____", target_table="____")