The part table shows hierarchical information about the car parts. It contains these columns:
id – the unique ID of the part.
name – the name of the part.
price – the price of the part.
registered_date – the registered date of the part.
model_id – the Ford model (universal parts for all models have NULL in this column).
parent_id – the ID of the parent part, if any (main parts have NULL in this column because they don't belong to any parent part). For example, the car body is a parent part built of an engine and other parts, and an engine is a parent part built of cylinders, pistons, and other parts.
Explore the contents of the table part by selecting all data from it.