在MySQL中，当使用`DESC`命令查看表结构时，如果出现`Warnings`，通常是因为表中的某些列或索引存在问题。这些问题可能包括：列的默认值不符合数据类型、列的字符集与表的字符集不一致、索引的长度不足等。 要解决这个问题，您需要找到具体的警告信息，并根据提示进行相应的修复操作。以下是一个示例： 假设您的表名为`example_table`，执行`DESC`命令后显示以下警告信息： ``` 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