L72: Dependency presevation

Welcome to Lecture 72 of the course "Database Management Systems" by Prof. Partha Pratim Das. Full Course: https://study.iitm.ac.in/ds/course_pages/BSCS2001.html Video Overview This lecture introduces the concept of dependency preservation in relational schema decomposition, a key part of database normalization. Learners will see how to test whether functional dependencies are maintained after decomposition using closure sets, algorithms, and worked-out examples like verifying D _ A. These techniques provide both the theoretical foundation and practical method for reliable schema design. Offered as part of IIT Madras’s BSc Degree in Programming and Data Science, the world’s first online BSc of its kind, this course makes a world-class curriculum accessible to learners and professionals of all backgrounds—without the need for JEE. About About IIT Madras' online Bachelor of Science programme IIT Madras offers four-year BS programmes that aim to provide quality education to all, irrespective of age, educational background, or location. The BS programme has multiple levels, which provide flexibility to students to exit at any of these levels. Depending on the courses completed and credits earned, the learner can receive a Foundation Certificate from IITM CODE (Centre for Outreach and Digital Education), Diploma(s) from IIT Madras, or BSc/BS Degrees from IIT Madras. For more details, Visit: https://www.iitm.ac.in/academics/study-at-iitm/non-campus-bs-programmes To know more about our Programs, please visit : BSc Degree in Programming and Data Science - https://onlinedegree.iitm.ac.in/ Diploma in Programming / Data Science - https://diploma.iitm.ac.in/ #DependencyPreservation #DatabaseDesign #Normalization #FunctionalDependencies #IITMadras #BScDataScience #ProgrammingAndDataScience #OnlineLearning