Each tab shows a table: its columns, the type of each column under its name, and its rows. A key icon marks the column that identifies each row. A link icon marks a column that points to another table.

Find the answers in the tabs, or with SELECT * FROM and the table name.

1. Which country is customer 6 from? Give the two letters.
2. What is the type of the status column in orders?
3. How many columns does order_items have?
4. Show every row of categories in the Result tab.