uncategorized SQLException; SQL state [S0001]; error code [530]; 语句被终止。完成执行语句前已用完最大递归 100

在SQLServer中执行递归的时候出现错误

 

#子查父递归
With Tree As(    
SELECT id, parent_id
FROM dbo.data_catalog C
UNION ALL
SELECT P.id, P.parent_id
FROM dbo.data_catalog P, Tree
WHERE Tree.parent_id = P.id
)     
SELECT *
FROM data_catalog where id in (select id from Tree ) 

 

 

uncategorized SQLException; SQL state [S0001]; error code [530]; 语句被终止。完成执行语句前已用完最大递归 100。

 

原来SQLServer默认有个递归次数，如果SQL中的递归次数大于该阈值，就会触发该错误，该值默认为100，可以手动修改该值。

修改为0 则不限制次数

With Tree As(    
SELECT id, parent_id
FROM dbo.data_catalog C
UNION ALL
SELECT P.id, P.parent_id
FROM dbo.data_catalog P, Tree
WHERE Tree.parent_id = P.id
)     
SELECT *
FROM data_catalog where id in (select id from Tree ) OPTION (MAXRECURSION 0)