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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
ON DELETE ON UPDATE
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Internal relationships Documentation
Column Internal relation An internal relation is not necessary when a corresponding FOREIGN KEY relation exists.
id
company_id
branch_id
unit_id
test_id
assignment_type
assignment_key
candidate_id
student_id
class_id
section_id
batch_id
available_from
available_until
is_active
assigned_by
updated_by
created_at
updated_at
delete_status