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UnidentifiedIn Not Null constraint.Columns with the NOT NULL constraint can contain null values by default.a . Ensures the column contains no null values.bOThe NOT NULL
UnidentifiedIn Not Null constraint.Columns with the NOT NULL constraint can contain null values by default.aEnsures the column contains no null values.bOThe NOT NULL constraint can be specified at the column and table level.cOA&b dOAll of the abovee
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