单选题What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?()A
CheckB
RangeC
ReferentialD
Informational
题目
单选题
What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?()
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