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2. Relational Concept and SQL (15 pts) Courses SchClasses ca -preca ] ca l ctitie ! Crtir Calle l ca l section l instructor IS380 IS300 IS380 IS301 1S380 IS310 1S385 15300 1S385 1S310 IS300 Intro to MIS 3 IS301 Bus Comm IS310 Statistics IS380 Database IS385 Systems 1001 15300 1002 IS300 1003 IS300 1004 IS301 1005 IS301 1006 I5301 1007 IS310 1008 IS310 Lee 2 Jones 3 Jones Lee 2 Smith 3 Lee 1 Smith 2 Jones Assumptions: Each course may have many prerequisite courses. Each course may be required by many courses. We may offer multiple sections of each course, each has a unique Calls and is taught by one instructor. Am instructor may teach multiple classes Write SQL commands to create the above tables in sequence with proper primary key and foreign key declarations. (Note: You may decide column definitions as long as they are reasonable. You do not need to insert any records.) Write SQL commands in sequence to delete the three tables