2022/1/25 20:08:21 其他 字数 663 阅读 866 来源 http://www.bubuko.com/infolist-5-1.html
alter table FM_CONTRACT add OTHER_PHONE_alter number(20); update FM_CONTRACT set OTHER_PHONE_alter= OTHER_PHONE;update FM_CONTRACT set OTHER_PHONE=nul ...
alter table FM_CONTRACT add OTHER_PHONE_alter number(20);
update FM_CONTRACT set OTHER_PHONE_alter= OTHER_PHONE;
update FM_CONTRACT set OTHER_PHONE=null;
alter table FM_CONTRACT modify other_phone varchar2(100);
update FM_CONTRACT set OTHER_PHONE= OTHER_PHONE_alter;
alter table FM_CONTRACT drop column OTHER_PHONE_alter;
原文：https://www.cnblogs.com/houchen/p/12408516.html
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