[Revised Edition] SQLD 1 Subject Complete Summary (Reflecting the New Type of 2024)

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Published on Jul 9, 2024
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★ Reflecting the 2024 revision ★ This video is a key summary lecture reflecting the 2024 revision. This is a lecture video for the 3rd and 4th sessions in 2024 (revised version of the existing video). You can purchase the textbook on the homepage below (total 155 pages) Homepage address: www.hdatalab.co.kr ★ Chapter-by-chapter section summary ★ 00:00 Intro 00:07 1-1. Understanding data models 14:55 1-2. Entities 22:21 1-3. Attributes 30:45 1-4. Relationships 37:02 1-5. Identifiers 49:05 1-6. Normalization 1:02:07 1-7. Understanding relationships and joins 1:08:21 1-8. Understanding transactions expressed by the model 1:11:27 1-9. Understanding null attributes 1:16:26 1-10. Essential identifier vs. artificial identifier

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