Oracle11g 将错误获取为"；ORA-32044:执行递归查询时检测到循环；

我得到的错误是“ORA-32044：执行带查询的递归时检测到循环” 在Oracle中执行以下查询时

WITH EmpsCTE (affiliation_id, from_customer_id,to_customer_id, to_name, level1)
AS
(
SELECT affiliation_id, from_customer_id,to_customer_id, to_name, 0
 FROM affiliation aff
 WHERE to_customer_id != from_customer_id
 and to_customer_id = 1000022560394
UNION ALL
SELECT aff.affiliation_id, aff.from_customer_id,aff.to_customer_id, aff.to_name, m.level1 + 1
 FROM affiliation aff
 INNER JOIN EmpsCTE  m
 ON aff.to_customer_id = m.from_customer_id
)
SELECT * FROM EmpsCTE;

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您的代码可以正常工作，但只有一个数据条件除外，即当您的to_客户（1000022560394）自己首先启动了事务，并且在某个级别的事务之后，它只返回给他

例如

对于这种情况，即使在事务结束时，查询的递归部分也会发现其所有条件都为true，因为数据将同时存在于普通表和增量数据集中

一种解决方案是创建一个匹配标志来确定其遭遇次数并避免无限循环：

WITH EmpsCTE (affiliation_id, from_customer_id,to_customer_id, to_name,level1,match_count)  
AS  
(  
SELECT affiliation_id, from_customer_id,to_customer_id, to_name, 0, 0 match_count  
 FROM affiliation aff  
 WHERE to_customer_id != from_customer_id  
 and to_customer_id = 1000022560394  
UNION ALL  
SELECT aff.affiliation_id, aff.from_customer_id,aff.to_customer_id, aff.to_name, m.level1 + 1,1 match_count  
 FROM affiliation aff  
 INNER JOIN EmpsCTE  m  
 ON aff.to_customer_id = m.from_customer_id  
 where m.match_count=0  
)  
SELECT * FROM EmpsCTE;  

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您是否考虑过正确格式化代码？