oracle 使表主鍵失效，外鍵失效

使主鍵失效：alter table tableName disable primary key;

使主鍵恢復：alter table tableName enable primary key;

刪除主鍵：alter table tableName drop primary key;

 

使外鍵失效：alter table tableName disable constraint 外鍵名稱;

使外鍵恢復：alter table tableName enable constraint 外鍵名稱;

刪除外鍵：alter table tableName drop constraint 外鍵名稱;