Recursion On Database Query使用Hibernate获取分层结果 - Java 我的Oracle数据库中有一个表与子父关系,如 - 我需要的是在Hibernate中以分层方式访问子列表. 当父亲登录时 - 他将儿子当作儿子. 当祖父登录时 - 他得到了儿子,父亲,叔叔. 当超级祖父登录时 - 他得到了儿子,父亲,叔叔和祖父. 我也有一
This articles gives an overview of how to query hierarchical data in Oracle databases using recursive subquery factoring. This functionality was introduced in Oracle 11g Release 2, giving an alternative to the method of performing hierarchical queries from previous versions....
For example, on older versions Oracle could have merged an inline view but not the named query with exactly the same text.doi:10.1007/978-1-4842-3372-6_6Alex Reprintsev
I have recursive CTE. There is a cross join in recursive part of query. Cross-joined table is dummy unnecessary table with single row without any influence on query result. The point is, if cross join clause is used, query fails on "ORA-32044: cycle detected while executing recursive WITH...
-- Oracle 递归查询 geovindu Geovin Du 涂聚文 /* prior 在子节点端(向下递归) 第一种情况:start with 子节点id = ' 查询节点 ' connect by prior 子节点id = 父节点id select * from dudept start with deptCode='1001' connet by prior deptCode=pCode; ...
recursive calls are basically SQL performed on behalf of your SQL. So, if you had to parse the query, for example, you might have had to run some other queries to get data dictionary information. These would be recursive calls.Space management, security checks, calling PL/SQL from SQL—...
I am trying to query the complete decomposition of a given element (the element itself and all it's childs, and the childs its childs) to seperate rows and I would like to do this recursively. To do this I am thinking of using the WITH statement but I can't test this because the ...
recursive calls are basically SQL performed on behalf of your SQL. So, if you had to parse the query, for example, you might have had to run some other queries to get data dictionary information. These would be recursive calls.Space management, security checks, calling PL/SQL from SQL—...
ORACLE(session-router)#enum-configORACLE(enum-config)# recursive-query—Set this parameter toenabledfor theOracle Communications Session Border Controllerto query a DNS server for a hostname returned in an ENUM result. Save your work using thedonecommand....
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