我出现以下错误:
INSERT INTO GroupMembers VALUES ('Goldfrat', 'Simon Palm')
*
ERROR at line 1:
ORA-02291: integrity constraint (SHAHA1.IAM_IS_GROUP_FK) violated - parent key
not found
表中的约束GroupMembers
为:
CONSTRAINT iam_is_group_fk FOREIGN KEY(is_group) REFERENCES Members(group_name)
成员表如下所示:
CREATE TABLE Members (
group_name VARCHAR2(40),
CONSTRAINT g_id_pk PRIMARY KEY(group_name),
CONSTRAINT m_group_name_fk FOREIGN KEY(group_name) REFERENCES Artist(artistic_name));
在创建表之前,所有表都可以正常创建GroupMembers
。有人有想法么?我已经挠了好一阵子了。