标题: ORA-02331: cannot create constraint on column of datatype string [打印本页] 作者: admin 时间: 2016-7-21 17:06 标题: ORA-02331: cannot create constraint on column of datatype string ORA-02331: cannot create constraint on column of datatype string Cause: An attempt was made to create a constraint on a column posessing a
non-constrainable datatype -- VARRAY, nested table, object, LOB, FILE, or REF. Action: Change the column datatype, or remove the constraint.