Changes between Version 23 and Version 24 of Normalization


Ignore:
Timestamp:
04/27/26 02:54:13 (5 days ago)
Author:
221296
Comment:

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  • Normalization

    v23 v24  
    349349
    350350== Check for BCNF
    351 Each resulting relation is also in BCNF because, in every non-trivial functional dependency within a relation, the determinant is a superkey of that relation.
    352 
     351Each resulting relation is also in BCNF, because in every non-trivial functional dependency within a relation, the determinant is a superkey of that relation.
     352* UserEntity: user_id is key → BCNF
    353353* Users: user_id is key → BCNF
    354 * Clients: client_id is key → BCNF
    355 * Admins: admin_id is key → BCNF
    356 * Owners: owner_id is key → BCNF
    357 * Notifications: notification_id is key → BCNF
    358 * VetClinics: clinic_id is key → BCNF
    359 * VetClinicApplications: application_id is key → BCNF
    360 * Animals: animal_id is key → BCNF
    361 * Listings: listing_id is key → BCNF
    362 * Appointments: appointment_id is key → BCNF
    363 * HealthRecords: healthrecord_id is key → BCNF
    364 * Reviews: review_id is key → BCNF
    365 * UserReviews: review_id is key → BCNF
    366 * ClinicReviews: review_id is key → BCNF
    367 * FavoriteListings: (saved_user_id, saved_listing_id) is key → BCNF
    368 {{{So the schema satisfies BCNF.}}}
     354* Administrators: admin_id is key → BCNF
     355* Instructors: instructor_id is key → BCNF
     356* SubscriptionPlan: plan_id is key → BCNF
     357* UserSubscription: subscription_id is key → BCNF
     358* Payment: payment_id is key → BCNF
     359* SupportTicket: ticket_id is key → BCNF
     360* Category: category_id is key → BCNF
     361* Course: course_id is key → BCNF
     362* CourseCategory: (course_id, category_id) is composite key → BCNF
     363* Module: module_id is key → BCNF
     364* Lesson: lesson_id is key → BCNF
     365* Quiz: quiz_id is key → BCNF
     366* QuizAttempt: attempt_id is key → BCNF
     367* Enrollment: enrollment_id is key → BCNF
     368* Certificate: certificate_id is key → BCNF
     369{{{Therefore, the resulting schema satisfies BCNF.}}}
    369370
    370371== Check for 4NF (multivalued dependencies)