Sql 甲骨文'；通过'连接；语法

这是以下问题的一个分支：

正如在该问题中的一条评论所说，我正试图使用Oracle特殊的“连接方式”语法实现我的查询。在我的案例中，我很难找到关于如何实现语法的任何（清晰的）信息

我的问题是：

SELECT pi.compressed_name, pi.phn, to_char(pi.date_of_birth , 'YYYY/MM/DD') as date_of_birth,
  to_char(pe.started_on , 'YYYY/MM/DD' ) as medicare_eligibility_start,
  to_char(pe.ended_on , 'YYYY/MM/DD' ) as medicare_eligibility_end
FROM    medcrtr.forest_node fnpppp,
    medcrtr.forest_node fnppp,
    medcrtr.forest_node fnpp,
    medcrtr.forest_node fnp,
    medcrtr.forest_node fn,
    medcrtr.group_member gm,
    medcrtr.program_eligibility pe,
    person_index pi
WHERE   gm.entity_type_id = 1
    AND fn.source_id = gm.group_id
    AND fn.entity_type_id = 3
    AND fnp.id = fn.parent_id
    AND fnpp.id = fnp.parent_id
    AND fnppp.id = fnpp.parent_id
    AND fnpppp.id = fnppp.parent_id
    AND pe.person_id = gm.source_id
    AND pe.sub_program_id = fnpp.parent_id
    AND pi.person_id = gm.source_id
  AND fnppp.id = 1169
    AND (gm.ended_on >= SYSDATE OR gm.ended_on IS NULL)

有人能给我指出正确的方向，让它转换成不同的语法吗

我的想法大致如下：

SELECT   pi.compressed_name, pi.phn, to_char(pi.date_of_birth , 'YYYY/MM/DD') as date_of_birth,
    to_char(pe.started_on , 'YYYY/MM/DD' ) as medicare_eligibility_start,
    to_char(pe.ended_on , 'YYYY/MM/DD' ) as medicare_eligibility_end
FROM    medcrtr.forest_node fn,
    group_member gm,
    program_eligibility pe,
    person_index pi
WHERE   gm.entity_type_id = 1
    AND fn.source_id = gm.group_id
    AND fn.entity_type_id = 3
    AND pe.person_id = gm.source_id
    --AND pe.sub_program_id = fnpp.parent_id ???
    AND pi.person_id = gm.source_id
    --AND fnppp.id = 1169 ???
    AND (gm.ended_on >= SYSDATE OR gm.ended_on IS NULL)
CONNECT BY PRIOR fn.id=fn.parent_id

---

这显然不起作用，我还不知道如何集成fnpp的功能。有什么帮助吗？

我不确定，但我认为您缺少了

从
开始的条款：

SELECT   pi.compressed_name, pi.phn, to_char(pi.date_of_birth , 'YYYY/MM/DD') as date_of_birth,
    to_char(pe.started_on , 'YYYY/MM/DD' ) as medicare_eligibility_start,
    to_char(pe.ended_on , 'YYYY/MM/DD' ) as medicare_eligibility_end
FROM    medcrtr.forest_node fn,
    group_member gm,
    program_eligibility pe,
    person_index pi
WHERE   gm.entity_type_id = 1
    AND fn.source_id = gm.group_id
    AND fn.entity_type_id = 3
    AND pe.person_id = gm.source_id
    AND pi.person_id = gm.source_id
    AND (gm.ended_on >= SYSDATE OR gm.ended_on IS NULL)
start with fn.id = 1169 /*THis is where the recursion will start */
CONNECT BY PRIOR prior fn.id=fn.parent_id /*specify you want the current node's parent id to match the previous node's id*/

一个很好的参考资料：
我不确定，但我认为您缺少了
从
开始的子句：

SELECT   pi.compressed_name, pi.phn, to_char(pi.date_of_birth , 'YYYY/MM/DD') as date_of_birth,
    to_char(pe.started_on , 'YYYY/MM/DD' ) as medicare_eligibility_start,
    to_char(pe.ended_on , 'YYYY/MM/DD' ) as medicare_eligibility_end
FROM    medcrtr.forest_node fn,
    group_member gm,
    program_eligibility pe,
    person_index pi
WHERE   gm.entity_type_id = 1
    AND fn.source_id = gm.group_id
    AND fn.entity_type_id = 3
    AND pe.person_id = gm.source_id
    AND pi.person_id = gm.source_id
    AND (gm.ended_on >= SYSDATE OR gm.ended_on IS NULL)
start with fn.id = 1169 /*THis is where the recursion will start */
CONNECT BY PRIOR prior fn.id=fn.parent_id /*specify you want the current node's parent id to match the previous node's id*/

一个很好的参考资料：
对不起，你所说的“把这个削减到…”是什么意思？我将获取一些数据，确保分层查询首先在
forest\u节点
表的上下文中工作，然后开始附加连接。对不起，“将其削减到…”是什么意思？我将获取一些数据，确保分层查询首先在
forest\u节点
表的上下文中工作，然后开始连接。