Question
from instructor, teaches
where instructor_ID= teaches_ID;
This Query can be replaced by which one of the following ?
a.
Select name,course_id from teaches,instructor where instructor_id=course_id;
b.
Select name, course_id from instructor natural join teaches;
c.
Select name ,course_id from instructor;
d.
Select course_id from instructor join teaches;
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Q. Select name, course_id from instructor, teaches where instructor_ID= teaches_ID; This Query can be replaced by which one of the following ?
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