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A(n)NOT NULL constraint is a special CHECK constraint with the condition of IS NOT NULL._________________________
Point B
Often used in graphs or models to denote a specific location, point, or situation being analyzed or referenced.
Opportunity Cost
The cost of missing out on the next best alternative when making a decision.
Point A
Typically used as a reference point in diagrams or illustrations in economics or geometry.
Opportunity Cost
The dues for not selecting the following most suitable option when making decisions.
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