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如何删除列的default 属性

967004Nov 29 2012 — edited Nov 29 2012

请问在ORACLE中如何剔除列的default 属性？
如：create table aa(c1 varchar2(10) default null)
于是，在user_tab_cols中的data_default列中就有了个'null'值，我现在去掉这个null值，让它变成空白，相当于没有定义这个列的default属性，应该怎么弄？

This post has been answered by LiuMaclean(刘相兵) on Nov 29 2012

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Added on Nov 29 2012

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