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Foreign key constraints
Actions Constraint properties Column Creating a foreign key over a non-indexed column would automatically create an index on it. Alternatively, you can define an index below, before creating the foreign key. Foreign key constraint (INNODB)
Database Table Column
Drop Drop
ON DELETE ON UPDATE
+ Add column
ON DELETE ON UPDATE
+ Add column
+ Add constraint
Internal relationships Documentation
Column Internal relation An internal relation is not necessary when a corresponding FOREIGN KEY relation exists.
course_id
course_name
cgroup_id
eclass_id
test_resource
class_resoure
consolidated_format
consolidate_custom
marks_card_format
marks_card_attendance
marks_card_remarks
marks_card_custom
class_teacher_signature
user
status
age_eligibility
age_eligibility_in_months
page_orientation
modified_at