In phpMyAdmin 我有一个没有违约价值的焦炭(32)栏。 Default: 无。 当我试图通过QL.的盘点插入数据时,它就犯了一个错误,说“单壳有违约值”。 我需要空洞,因此,我只是把它的违约价值定为“定义:”,然后是价值领域的任何东西。 这是一种坏的想法吗?
难道这比简单地为QQQry一栏注入空值还要好吗?
感谢你们的时间。
你试图插入一行,没有界定几栏。 这些栏目可以是<代码>NUL,也可以是确定的缺省值。 当一栏没有数据时,由您决定采取什么行动? 你们是否希望它成为全国人民代表大会(即空洞)或确定的价值?
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