hierarchical queries: output: display all folder paths. entry: Folder1, folder2

I have a table called 'File' with the data indicated below. I want the sql query to show the hierarchical output.
Enter values for the query: 2-11 tree shows two points (see "Input2" and "Input11"). The query now takes the values 2 and 11 and outputs hierarchical tree from root (see "Root") to the final sheets ('2, '12'), while the entries are as points of 'touch' inside the full tree-path, so I have the necessary output should be like 5 rows:

(0, null)-parent of the two inputs
(2, 0) - input2
(10,0) - parents of 'input11 '.
(11: 10) - input11
(12: 11) - leaf

I don't know how to write this query. Can help you.
Something like:

"Select...".
Connect prior ID = PARENT_ID.

--

Table "Folder" (ID, PARENT_ID).

Column PARENT_ID reference ID to create the hierarchy.
Example of data in the table:

(0, null)-root
(1, 0) - child '1 '.
(2, 0) - Input2
(3, 1)
(10,0) - child "10".
(11: 10) - chilc-child "11", Input11
(12: 11) - chilc-child "12".

Hello

If you want to ignore a few lines in the file and only pay attention to the parameters, their ancestors and their descendants. Is this fair?
If so, do CONNECT it BY query on the results of a subquery which includes only the desired lines. In the example below, this query Tahina is be a UNION of two other CONNECT BY queries: one to get the ancestors of the parameters and the other for their descndents.

VARIABLE     input_a     NUMBER
VARIABLE     input_b     NUMBER
EXEC  :input_a := 2;
EXEC  :input_b := 11;

WITH     universe     AS
(
     -- Descendents of parameters
     SELECT     id,     parent_id
     FROM     folder
     START WITH     parent_id     IN (:input_a, :input_b)
     CONNECT BY     parent_id     = PRIOR id
     --
    UNION
     -- Ancestors of parameters
     SELECT  id,     parent_id
     FROM     folder
     START WITH     id     IN (:input_a, :input_b)
     CONNECT BY     id     = PRIOR parent_id
)
SELECT     SYS_CONNECT_BY_PATH (id, '/')     AS path
FROM     universe
START WITH     parent_id     IS NULL
CONNECT BY     parent_id     = PRIOR id
;

Output of your sample data:

PATH
------------------------------
/0
/0/2
/0/10
/0/10/11
/0/10/11/12

Tags: Database

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I play with the connection by and start with clause and am faced with a particular problem which I can not solve...

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(start_date date,
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/

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START_DATE	END_DATE	SYS_CONNECT_BY_PATH(START_DATE,'\|')	LVL
01.01.2014	10.01.2014	\| 1 JANUARY 14	1
11.01.2014	20.01.2014	\| 1 JANUARY 14 \| JANUARY 11, 14	2
11.01.2014	20.01.2014	\| JANUARY 11, 14	1
10.03.2014	20.03.2014	\| MARCH 10, 14	1
21.03.2014	31.03.2014	\| MARCH 10, 14. MARCH 21, 14	2
01.04.2014	10.04.2014	\|10-MAR-14\|21-MAR-14\|01-APR-14	3
21.03.2014	31.03.2014	\| MARCH 21, 14	1
01.04.2014	10.04.2014	\| MARCH 21, 14. 1 APRIL 14	2
01.04.2014	10.04.2014	\| 1 APRIL 14	1

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When I give the State of departure; I get a single row :-(

Example of

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  FROM dates_q a
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01.04.2014	10.04.2014	\| 1 APRIL 14	1

Just a line...!

I'm unable to understand this and work more and need help.

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Thank you

P.S. - database is 10g R2.

Hello

Thanks for the display of the data of the sample; It is very useful.

What do you expect the result will be and why?

LEVEL = 1 contains all rows that meet the condition to START WITH. The rows that meet the condition

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in this case? Only the line you actually obtained.

LEVEL = N (where N > 1) contains all rows that meet the conditions regarding some FRONT CONNECT BY rank level = N - 1. Since the only line level = 1 to end_date = To_Date('10-apr-2014','dd-mon-yyyy'), lines satisfy the condition

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Maybe you meant the CONNECT BY condtion to be

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by searching the forum I found this

Re: Generate tree balanced with SQL hierarchical queries

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hierarchical queries: output: display all folder paths. entry: Folder1, folder2

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