Exercise #2 (tips and solutions)
Exercise #2 (tips and solutions)
SELECT DISTINCT maker
FROM Product
WHERE type = 'Printer'🚫
[[ error ]]
| [[ column ]] |
|---|
| NULL [[ value ]] |
SELECT DISTINCT maker
FROM Product
WHERE type = 'Printer'| [[ column ]] |
|---|
| NULL [[ value ]] |