6. Primary Key vs Foreign Key in SQL – Simple Explanation with Diagrams
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6. Primary Key vs Foreign Key in SQL – Simple Explanation with Diagrams
Confused about the difference between primary keys and foreign keys in SQL? This video makes it easy. Learn how primary keys uniquely identify rows in a table, while foreign keys create connections between tables — helping databases stay organized, relational, and consistent. We use simple language and clear diagrams to explain how keys work ...
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