how to find recursion data in single query.

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SQL-Server-2014

Hi I have a table with data :

C#

ID     Case_ID      Related_Case_ID
 1        11            22
 2        22            33
 3        05            47
 4        89            33
 5        33            44
 6        67            56

now I want to find all the related case of case_id=11 the result like :

C#

ID     Case_ID      Related_Case_ID
 1        11            22
 2        22            33
 5        33            44

Any suggestion really appreciated!

Posted 18-May-14 20:51pm

Mas11

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2 solutions

Solution 3

SQL

WITH    q AS 
        (
        SELECT  *
        FROM    Tbl1
        WHERE   Case_ID=11 
        UNION ALL
        SELECT  m.*
        FROM    Tbl1 m
        JOIN    q
        ON      m.Case_ID = q.Related_Case_ID
        )
SELECT  *
FROM    q

DEMO[^]

Posted 18-May-14 21:17pm

DamithSL

Comments

Mas11 19-May-14 3:40am

thx a lot dear!

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King Fisher · Accepted Answer · 2014-05-18T21:00:00

Refer this

http://technet.microsoft.com/en-us/library/ms186243%28v=sql.105%29.aspx[^]

Result :

SQL

create table ##table1 (id bigint identity(1,1),case_id bigint,Related_case_id bigint)

insert into ##table1(case_id ,Related_case_id) values(11,22)
insert into ##table1(case_id ,Related_case_id) values(22,33)
insert into ##table1(case_id ,Related_case_id) values(05,47)
insert into ##table1(case_id ,Related_case_id) values(89,33)
insert into ##table1(case_id ,Related_case_id) values(33,44)
insert into ##table1(case_id ,Related_case_id) values(67,56)


select *From ##table1

 with cte(id , pid)
as
(select case_id,Related_case_id  from ##table1 where case_id=11
union all
select a.pid ,t.Related_case_id from cte as a inner join ##table1 as  t on a.pid = t.case_id
)
select *from cte