Primary & Foreign key | MySQL with Python Course

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You will learn about Primary Keys & Foreign Keys in MySQL. How to create unique identifier for each row and how to add references in fields to other tables.

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0:00 Intro
2:10 Candidate keys
4:00 Introduction to Primary key
4:50 Alternate keys
5:57 Introduction to Foreign keys
12:04 Creating Primary key in new table
20:21 Adding Primary key to existing table
26:54 Dropping the Primary key
28:32 Creating Foreign key in new table
39:46 Adding Foreign key to existing table
41:02 Dropping a Foreign key
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thank you very much! I'm just getting started with python and your videos are very helpful, every step is explained very clearly!😊

jiarong
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