mysql中的int unsigned

在MySQL中，int unsigned是一种整数类型，表示一个无符号的整数。它可以存储的范围比有符号的int类型更大，因为它不需要存储负数。unsigned int的范围是0到4294967295，而有符号的int范围是-2147483648到2147483647。当我们创建表时，可以使用int(unsigned)来声明一个无符号的整数列。这样的列只能存储非负整数值。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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