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Many-to-many example
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# For http://stackoverflow.com/a/7296873/396458 | |
student: student_id, first_name, last_name | |
classes: class_id, name, teacher_id | |
student_classes: class_id, student_id # the junction table | |
students: | |
id | first | last | |
===================== | |
1 | John | Lee | |
2 | Jane | Wilson | |
3 | Daniel | Gomez | |
classes: | |
id | name | teacher_id | |
========================== | |
1 | Biology | 2 | |
2 | Physics | 4 | |
3 | English | 77 | |
student_classes | |
s_id | c_id | |
====================== | |
1 | 2 # John is taking Physics | |
1 | 3 # John is taking English | |
2 | 2 # Jane is taking Physics | |
3 | 1 # Daniel is taking Biology | |
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