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UNSIGNED：是指数值类型只能为正数； #14

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coderben2017 opened this issue Apr 20, 2018 · 2 comments

coderben2017 commented Apr 20, 2018

unsigned无符号整数，应该是“非负数”吧？（包含0）

Owner

jaywcjlove commented Apr 20, 2018

咨询专业的DBA的回答，自己斟酌哦：

不包含0，但允许存0值。unsigned 这个关键字的意义原本就是定义整型的存储范围。

Author

coderben2017 commented Apr 20, 2018

涨姿势了~

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