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Question 1 1 ( 1 mark ) Which of the following terms indicates an unknown attribute value and a known but missing attribute value in
Question mark Which of the following terms indicates an unknown attribute value and a known but missing attribute value in a database table? A Empty B nil C Null D Zero
Question mark
Which of the following terms indicates an unknown attribute value and a known but missing
attribute value in a database table?
A Empty
B nil
C Null
D Zero
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