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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.