execute the following SQL and draw the query tree. explain what kinds of joint operations are used in the query tree

this is the table used

3. (5 points) Execute the following SQL and draw the query tree. Explain what kinds of join operations are used in the query tree SELECT E.fname, W.hours, P.plocation FROM employee E, works on W, project P WHERE W.pno P.pno AND E.essn W.essn AND E.fname 'Alex