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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Which of the following statements about primary key in a database table is true?
Solution
Solution: A table can have only one primary key, it cannot contain NULLs. Its main property: uniquely identifies each record.
Answer: (B) A primary key uniquely identifies each record in a table
Answer: (B) A primary key uniquely identifies each record in a table
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