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Ssex  NCHAR 1  DEFAULT ’男’ 语句中的DEFAULT约束表示Ssex变量的默认值为’男’。

判断题
2022-01-07 21:48
A、正确
B、错误
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正确答案
正确
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标签： 国家开放大学(数据库应用技术)
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Ssex  NCHAR 1  DEFAULT ’男’ 语句中的DEFAULT约束表示Ssex变量的默认值为’男’。
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