ORA-02444: Cannot resolve referenced object in referential constraints
Cause: attempted to define foreign key referencing an object which cannot be resolved to a base table reference
Action: referential constraints can only be defined on objects which can be resolve to base table reference
(2)在做外键约束时,如果外键表不存在,则会报此错误。
(2)如果带有完整性约束的引用表或字段可以访问,则应检查约束的参照实体是否存在。
(3)如果约束的参照实体存在,则可以检查其内容是否为有效数据。
(4)如果参照实体中的数据有效,则可检查约束是否错误,或是说链接是否正确。
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