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Course: C ( code , name, credits, department ) Prerequisite: PR ( code , prerequisite ) 4 . 3 Write down the following in SQL
Course: C code name, credits, department
Prerequisite: PR code prerequisite
Write down the following in SQL
a Retrieve the prerequisite courses for the "DATABASE" course.
b Retrieve the courses that require the "DATABASE" course as a prerequisite.
c Display for each department the list of offered courses that require prerequisites.
d Display for each department the list of offered courses with no prerequisites.
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