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Foreign keys cannot handle deletes and updates.(a) True(b) FalseI have been asked this question in an interview for internship.The query is from Foreign Keys and Referential Integrity in section Using SQL to Manage Data of MySQL

Answer»

Right answer is (b) False

To explain: A foreign KEY is the ONE which declares that an index in one table is related to that in ANOTHER and place constraints. It is USEFUL for handling deletes and updates along with row entries.



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