ORA-02292: integrity constraint (xxxx) violated - child record found
2016-08-12 16:58 潇湘隐者 阅读(14513) 评论(0) 编辑 收藏 举报在更新表的主键字段或DELETE数据时,如果遇到ORA-02292: integrity constraint (xxxx) violated - child record found 这个是因为主外键关系,下面借助一个小列子来描述一下这个错误:
SQL> create table student
2 (
3 id number,
4 name nvarchar2(12),
5 constraint pk_student primary key(id)
6 );
Table created.
QL> create table grades
2 ( id number ,
3 subject nvarchar2(12),
4 scores number,
5 constraint pk_grades primary key(id ,subject),
6 constraint fk_student_id foreign key(id) references student(id)
7 );
Table created.
SQL> insert into student
2 values(1001,'kerry');
1 row created.
SQL> insert into student
2 values(1002,'jimmy');
1 row created.
SQL> commit;
Commit complete.
SQL> insert into grades
2 values(1001, 'math', 120);
1 row created.
SQL> insert into grades
2 values(1001, 'english', 106);
1 row created.
SQL> commit;
Commit complete.
SQL> update student set id=1004 where name='kerry';
update student set id=1004 where name='kerry'
*
ERROR at line 1:
ORA-02292: integrity constraint (TEST.FK_STUDENT_ID) violated - child record
found
SQL>
遇到这种情况,首先找到外键约束和相关表,禁用外键约束,处理数据,然后启用外键约束。
SELECT OWNER, CONSTRAINT_NAME, TABLE_NAME
FROM DBA_CONSTRAINTS
WHERE CONSTRAINT_NAME=&CONSTRAINT_NAME;
SELECT OWNER, CONSTRAINT_NAME, TABLE_NAME
FROM USER_CONSTRAINTS
WHERE CONSTRAINT_NAME=&CONSTRAINT_NAME;
SQL> ALTER TABLE TEST.GRADES DISABLE CONSTRAINT FK_STUDENT_ID;
Table altered.
SQL> update student set id=1004 where name='kerry';
1 row updated.
SQL> update grades set id=1004 where id =1001;
2 rows updated.
SQL> commit;
Commit complete.
SQL> ALTER TABLE TEST.GRADES ENABLE CONSTRAINT FK_STUDENT_ID;
Table altered.
SQL>
如果是删除数据遇到这种情况,可以先删除子表数据,然后删除父表数据。
SQL> delete from student where id=1004;
delete from student where id=1004
*
ERROR at line 1:
ORA-02292: integrity constraint (TEST.FK_STUDENT_ID) violated - child record
found
SQL> delete from grades
2 where id in
3 ( select id from student
4 where id=1004);
2 rows deleted.
SQL> delete from student where id=1004;
1 row deleted.
SQL> commit;
Commit complete.
SQL>

· 一个费力不讨好的项目,让我损失了近一半的绩效!
· .NET Core 托管堆内存泄露/CPU异常的常见思路
· PostgreSQL 和 SQL Server 在统计信息维护中的关键差异
· C++代码改造为UTF-8编码问题的总结
· DeepSeek 解答了困扰我五年的技术问题
· 一个费力不讨好的项目,让我损失了近一半的绩效!
· 清华大学推出第四讲使用 DeepSeek + DeepResearch 让科研像聊天一样简单!
· 实操Deepseek接入个人知识库
· CSnakes vs Python.NET:高效嵌入与灵活互通的跨语言方案对比
· Plotly.NET 一个为 .NET 打造的强大开源交互式图表库
2015-08-12 RedHat Linux RHEL6配置本地YUM源
2013-08-12 ORACLE的SPFILE与PFILE