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Home > Database > Mysql Tutorial > ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

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ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

[日期：2011-12-04] 来源：Linux社区  作者：lwei_998 [字体：]

给一个已经有记录的表添加新列，，并指定not null 时报ORA-01758。怎么办？

1.给新添加的列指定默认值。

2.清空表中的记录再添加新列。

实验如下：

linux

Related labels：
oracle database
source：php.cn
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