What are all the names of all the catalog products?
select catalog_entry_name from catalog_contents
Could you also show me their product stock numbers?!
select catalog_entry_name, product_stock_number from catalog_contents
How many have stock number that starts with "2"?
select count(*) from catalog_contents where product_stock_number like "2%"
What are their names?
select catalog_entry_name from catalog_contents where product_stock_number like "2%"