QUESTION $2$

Consider the following table:

Name: table $1$

$\backslash$table$[[$cod$1,$val$1,$vola$],[10,10,8],[12,10,6],[21,11,15],[33,10,2],[41,9,11],[8,10,6],[14,9,5],[11,11,4]]$

What is the result of the query below?

SELECT cod$1,($SELECT MAXivala$)$ FROM table$1)$ AS MAX:

FroM table $1$

WHERE val$2-$ MAX$2$ AND val$1-10$

$\begin{array}{cc}\text{c}\text{o}\text{d}1& \text{D}\text{i}\text{F}\text{F}\\ 21& 0\end{array}$

$\begin{array}{cc}\text{c}\text{o}\text{d}1& \text{D}\text{i}\text{F}\\ 10& 7\\ 12& 9\\ 33& 13\\ 8& 9\end{array}$

$\begin{array}{cc}\text{c}\text{o}\text{d}1& \text{D}\text{I}\text{F}\\ 10& 7\\ 12& 9\\ 21& 0\\ 33& 13\\ 41& 4\\ 8& 9\\ 14& 10\\ 11& 11\end{array}$