Which five code segments should you use?

DRAG DROP
You create a table that contains the following script:

You need to prevent duplicate values in the EmployeeID field.
Which five code segments should you use?
To answer, move the appropriate code segments from the list of code segments to the
answer area and arrange them in the correct order.

DRAG DROP
You create a table that contains the following script:

You need to prevent duplicate values in the EmployeeID field.
Which five code segments should you use?
To answer, move the appropriate code segments from the list of code segments to the
answer area and arrange them in the correct order.

Answer:

Explanation:

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