添加外键 发生错误!!!!!
SQL> alter table emp
2 add constraint fk_ename
3 foreign key(ename)
4 references bonus(ename);
add constraint fk_ename
*
ERROR 位于第 2 行:
ORA-02298: 无法验证 (SCOTT.FK_ENAME) - 未找到父项关键字
SQL> alter table scott.emp
2 add constraint fk_ename
3 foreign key(ename)
4 references bonus(ename);
add constraint fk_ename
*
ERROR 位于第 2 行:
ORA-02298: 无法验证 (SCOTT.FK_ENAME) - 未找到父项关键字