SQL| Foreign Keys | connecting two tables.
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YouTubeMech Creations
SQL| Foreign Keys | connecting two tables.
#sql #LearnSQL #Database It establishes a relationship between the Primary Key table and the Foreign Key table. Ensures only valid data goes in by checking if the value exists in the primary table. This process is called Referential Integrity – making your database more reliable & error-free! Simply put: Foreign Key = Gatekeeper of your ...
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