select * from user_constraints
禁用掉约束:alter table table_name disable constraint constraint_name;
删除表数据 delete from table_name 或者 truncate table table_name;
然后重新启用约束alter table table_name enable constraint constraint_name;
禁用掉约束:alter table table_name disable constraint constraint_name;
删除表数据 delete from table_name 或者 truncate table table_name;
然后重新启用约束alter table table_name enable constraint constraint_name;
转载于:https://my.oschina.net/u/2552902/blog/543925