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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
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
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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.
participant_id
firstname
lastname
middlename
dob
gender
ssn_lastfourdigits
phonenumber
email
address
city_id
state_id
zipcode
medications
special_diet
allergies
medical_needs
pregnancy
smoker
prior_treatment_drugalcohol
dl_number
dl_issued_state
dl_suspended
dl_points
court_order
blood_alcohol_content
emergencycontact_name
emergencycontact_phoneNumber
emergencycontact_relationship
created_by
created_date
updated_by
updated_date