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Course Queries Syllabus Queries 2 years ago
Posted on 16 Aug 2022, this text provides information on Syllabus Queries related to Course Queries. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I have three tables,
student, studentclass , class
student have sid as primary key, class have cid as primary key.
studentclass ties student and class together and has two columns, sid,cid (no special keys).
Is it possible to get rid of studentclass table and use student and class tables only, without creating duplicate entries in student or in class tables?
(class can have multiple students and student can attend multiple classes)
Thanks.
If the business logic states that, one student can attend multiple classes then it is good to have a linking table, StudentClass.
You can think of this as a Many to Many relationship where one student can attend multiple classes and one class can have multiple students.
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