شرح normalization كاملة بالأمثلة First Normal Form , 2NF , 3NF
Student Guide - م/ اسلام همام
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شرح normalization كاملة بالأمثلة First Normal Form , 2NF , 3NF
3 356 просмотров · 8 мес. назад
Student Guide - م/ اسلام همام
58 тыс. подписчиков
3 356 просмотров · 8 мес. назад
لكليات الحاسبات و المعلومات و الهندسة و العلوم . لشرح مقررات قواعد البيانات و SQL و تحليل الانظمة System Analysis and Database
رقم التليفون لحجز الشروحات و الاعمال:
https://wa.me/+201065761668
Confused by Database Normalization? In this tutorial, we break down the process of organizing your data to reduce redundancy and improve data integrity. We will take a "messy" unnormalized table and walk through the specific steps to reach First (1NF), Second (2NF), and Third Normal Form (3NF).
By the end of this video, you will understand:
Why we normalize databases (avoiding update, delete, and insert anomalies).
1NF: How to handle repeating groups and atomicity.
2NF: How to remove partial dependencies (and understand Primary Keys).
3NF: How to identify and remove transitive dependencies.