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下列哪个聚合函数的参数要求必须是数值型()。
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下列哪个聚合函数的参数要求必须是数值型()。
A.min
B.max
C.sum
D.count
正确答案:sum
Tag:
大型数据库技术
数值
函数
时间:2024-01-10 16:05:31
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