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What is foreign key constraint in databases? Briefly explain by using an example. What is the difference among a base table, a virtual view

What is foreign key constraint in databases? Briefly explain by using an example. What is the difference

What is foreign key constraint in databases? Briefly explain by using an example. What is the difference among a base table, a virtual view and a materialized view?

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Foreign Key Constraint A foreign key constraint in a database is a rule or relationship that enforces referential integrity between two tables It spec... blur-text-image

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