consider the following relations: student(snum: integer, sname: string, major: string, level: string, age: integer) class(name: string, meets at: string, room: string, fid: integer) enrolled(snum: integer, cname: string) faculty(fid: integer, fname: string, deptid: integer) the meaning of these relations is straightforward; for example, enrolled has one record per student-class pair such that the student is enrolled in the class. write the following queries in sql. 1. find the names of all juniors (level