Question

primary key can consist of duplicate values.a）true.b）false
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Answer 1

Answer:

Primary key may not contain duplicate values. ... A primary key is a special relational database table column (or combination of columns) designated to uniquely identify all table records. It must contain a unique value for each row of data.

so the the right answer is TRUE

Answer 2

Answer:

Hey mate the answer

is.

False

Explanation:

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