Question: Database Managment. Build the parse trees for the following queries, and optimize them using the rewrite rules. Given the relations: MOVIE(title, year, director, language), and

Database Managment. Database Managment. Build the parse trees for the following queries, and optimize

Build the parse trees for the following queries, and optimize them using the "rewrite rules". Given the relations: MOVIE(title, year, director, language), and Starsin(title, year, StarName, language), a. SELECT starname FROM GermanMovies NATURAL JOIN Starsin WHERE Director = ABCDEF' (Note German Movies is a view as shown below: CREATE VIEW GermanMovies AS SELECT * FROM Movie WHERE language "German'; b. SELECT Dept Name FROM Dept, Manager WHERE Manager. DNO=DEPT.DNO and Manager. Salary 50000

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