Sql 通过多个条件连接层次结构

我有3个表，其中一个表包含用户和分配给这些用户的元素。表DDL看起来像这样

  CREATE TABLE FSECURE
   (    "USERID" VARCHAR2(100 BYTE), 
    "F_ELEMENT" VARCHAR2(6 BYTE), 
    "O_ELEMENT" VARCHAR2(20 BYTE), 
    "TYPE" VARCHAR2(20 BYTE)
   );

表中包含的数据如下所示

   REM INSERTING into FSECURE
SET DEFINE OFF;
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('FFA','140','2003','APP1');
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('FFA','280','2003','APP1');
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('GGA','202118','2003','APP2');
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('GGA','140','2004','APP2');
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('RFA','202116','3662','APP3');
Insert into FSECURE (USERID,F_ELEMENT,O_ELEMENT,TYPE) values ('FFA','110001','3662','APP3');

fvol表包含对f_安全表的o_元素列的引用

 CREATE TABLE FVOL
       (    "ORG" VARCHAR2(6 BYTE), 
        "ORG_PRED" VARCHAR2(6 BYTE)
       );

REM INSERTING into FVOL
SET DEFINE OFF;
Insert into FVOL (ORG,ORG_PRED) values ('2003',null);
Insert into FVOL (ORG,ORG_PRED) values ('3661','2003');
Insert into FVOL (ORG,ORG_PRED) values ('3662','2003');
Insert into FVOL (ORG,ORG_PRED) values ('2009',null);
Insert into FVOL (ORG,ORG_PRED) values ('366X','2009');
Insert into FVOL (ORG,ORG_PRED) values ('366P','2009');
Insert into FVOL (ORG,ORG_PRED) values ('2004',null);
Insert into FVOL (ORG,ORG_PRED) values ('1114','2004');
Insert into FVOL (ORG,ORG_PRED) values ('2224','2004');

CREATE TABLE "FVAL" 
   (    "FUND" VARCHAR2(6 BYTE), 
    "FUND_PRED" VARCHAR2(6 BYTE)
   );



    REM INSERTING into FVAL
SET DEFINE OFF;
Insert into FVAL (FUND,FUND_PRED) values ('140',null);
Insert into FVAL (FUND,FUND_PRED) values ('280',null);
Insert into FVAL (FUND,FUND_PRED) values ('2000','140');
Insert into FVAL (FUND,FUND_PRED) values ('20001','2000');
Insert into FVAL (FUND,FUND_PRED) values ('20002','2000');
Insert into FVAL (FUND,FUND_PRED) values ('20003','2000');
Insert into FVAL (FUND,FUND_PRED) values ('202118','2000');
Insert into FVAL (FUND,FUND_PRED) values ('2800','280');
Insert into FVAL (FUND,FUND_PRED) values ('280001','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280002','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280003','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280004','2800');
Insert into FVAL (FUND,FUND_PRED) values ('110001','11000');
Insert into FVAL (FUND,FUND_PRED) values ('110002','11000');

fval表包含对fsecure表中f_元素的引用

 CREATE TABLE FVOL
       (    "ORG" VARCHAR2(6 BYTE), 
        "ORG_PRED" VARCHAR2(6 BYTE)
       );

REM INSERTING into FVOL
SET DEFINE OFF;
Insert into FVOL (ORG,ORG_PRED) values ('2003',null);
Insert into FVOL (ORG,ORG_PRED) values ('3661','2003');
Insert into FVOL (ORG,ORG_PRED) values ('3662','2003');
Insert into FVOL (ORG,ORG_PRED) values ('2009',null);
Insert into FVOL (ORG,ORG_PRED) values ('366X','2009');
Insert into FVOL (ORG,ORG_PRED) values ('366P','2009');
Insert into FVOL (ORG,ORG_PRED) values ('2004',null);
Insert into FVOL (ORG,ORG_PRED) values ('1114','2004');
Insert into FVOL (ORG,ORG_PRED) values ('2224','2004');

CREATE TABLE "FVAL" 
   (    "FUND" VARCHAR2(6 BYTE), 
    "FUND_PRED" VARCHAR2(6 BYTE)
   );



    REM INSERTING into FVAL
SET DEFINE OFF;
Insert into FVAL (FUND,FUND_PRED) values ('140',null);
Insert into FVAL (FUND,FUND_PRED) values ('280',null);
Insert into FVAL (FUND,FUND_PRED) values ('2000','140');
Insert into FVAL (FUND,FUND_PRED) values ('20001','2000');
Insert into FVAL (FUND,FUND_PRED) values ('20002','2000');
Insert into FVAL (FUND,FUND_PRED) values ('20003','2000');
Insert into FVAL (FUND,FUND_PRED) values ('202118','2000');
Insert into FVAL (FUND,FUND_PRED) values ('2800','280');
Insert into FVAL (FUND,FUND_PRED) values ('280001','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280002','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280003','2800');
Insert into FVAL (FUND,FUND_PRED) values ('280004','2800');
Insert into FVAL (FUND,FUND_PRED) values ('110001','11000');
Insert into FVAL (FUND,FUND_PRED) values ('110002','11000');

我遇到的问题是，我需要通过 用户-f_元素-o_元素-type

例如，在user_id FFA的情况下，fsecure表中的层次结构节点为F_元素='140'和O_元素='2003'，类型为APP1 就为了那一排我应该找回的 样本输出：

FUND:     ORG:          TYPE:
20001     3661          APP1
20002     3661          APP1
20003     3661          APP1
202118    3661          AAP1

20001     3662         AAP1
20002     3662         AAP1
20003     3663         APP1
202118    3663         AAP1
110001    3662         AAP3

我遇到的问题是遍历层次结构类型、userid、f_元素和o_元素。我可以遍历层次结构，但在如何不合并元素的情况下遍历层次结构方面，我有一个思维障碍。 注:

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APP3的FFA用户只获得一个f_元素和o_元素，因为他没有140和2003作为该行的一部分

@Miguel，这里有一个使用查询连接的解决方案

资料

解决方案

WITH v_fval
AS
(SELECT fund, r_fund
   FROM (SELECT fund, 
               connect_by_root fund AS r_fund,
               connect_by_isleaf AS l_fund
          FROM fval 
         START WITH fund_pred IS NULL
         CONNECT BY PRIOR fund = fund_pred)
  WHERE l_fund = 1)
, v_fvol 
AS
(SELECT org, r_org
   FROM (SELECT org, 
               connect_by_root org AS r_org,
               connect_by_isleaf AS l_org
          FROM fvol 
          START WITH org_pred IS NULL
          CONNECT BY PRIOR org = org_pred)
  WHERE l_org = 1)
SELECT fsecure.userid, 
       NVL(v_fvol.org, fsecure.o_element) AS org,
       NVL(v_fval.fund, fsecure.f_element) AS fund, 
       fsecure.type
  FROM fsecure LEFT JOIN v_fvol 
                 ON (fsecure.o_element = v_fvol.r_org)
               LEFT JOIN v_fval 
                 ON (fsecure.f_element = v_fval.r_fund)
 WHERE fsecure.userid = 'FFA'
 ORDER BY fsecure.userid, v_fvol.org, v_fval.fund  ;

输出如下所示

USERID  ORG FUND    TYPE
FFA 3661    20001   APP1
FFA 3661    20002   APP1
FFA 3661    20003   APP1
FFA 3661    202118  APP1
FFA 3661    280001  APP1
FFA 3661    280002  APP1
FFA 3661    280003  APP1
FFA 3661    280004  APP1
FFA 3662    20001   APP1
FFA 3662    20002   APP1
FFA 3662    20003   APP1
FFA 3662    202118  APP1
FFA 3662    280001  APP1
FFA 3662    280002  APP1
FFA 3662    280003  APP1
FFA 3662    280004  APP1
FFA 3662    110001  APP3

解释

这两个视图获取层次结构的叶节点，主查询将它们连接起来。我建议单独运行视图，以便更好地理解

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SQL Fiddle演示-

谢谢Ramesh您的输出看起来不错，但您发布的查询在我运行它时没有输出。你改变数据了吗？也许我事先错过了一些遗憾的事情。@Miguel-我所做的唯一改变就是删除了其中一条记录中空引号。也发布了数据。让我知道这是否有效。包括SQL小提琴演示，以及-你是男人！！拉梅什：这很有魅力！非常感谢。