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Hierarchical data

Author

Topic

imrul
Starting Member

36 Posts

Posted - 2012-05-13 : 06:26:53

Hi All,
I have a table with following sample data

AccountCode ParentAccCode AccountName
---------------------------------------------------
1 null Asset
101 1 Non current asset
10101 101 Land Development
1010101 10101 Land

I need output like bellow

AccountCode Level
-----------------------------------------------------
10101 3
1010101 4

Please help

vijays3
Constraint Violating Yak Guru

354 Posts

Posted - 2012-05-13 : 07:21:59

[code]
Solution:1
;with cte as
(

select AccountCode,ParentAccCode,1 as [level] from level where ParentAccCode is null
union all
select L.AccountCode,L.ParentAccCode,[level]+1 from level L inner join cte C on L.ParentAccCode
= C.AccountCode

)
select * from ( select top 2 * from cte order by level desc) A order by level

Solution2 :

;with cte as
(
select top 1 AccountCode,ParentAccCode,4 as [Level] from level order by AccountCode desc
union all
select L.AccountCode,L.ParentAccCode,[Level]-1 as [Level] from level L inner join cte C on
L.AccountCode= C. ParentAccCode )

select * from (select top 2 * from cte order by level desc) A order by level

[/code]

Vijay is here to learn something from you guys.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2012-05-13 : 14:53:07

it should be


;with cte as
      (
      select AccountCode,ParentAccCode,1 as [Level] ,CAST(AccountCode as varchar(max)) AS [Path]
      from level  
 
      union all 

      select   L.AccountCode,L.ParentAccCode,[Level]+1 as [Level] ,cast([Path] + '/' + cast(L.AccountCode AS varchar(100)) as varchar(max))
      from level L 
      inner join cte C 
      on L.AccountCode= C. ParentAccCode  
      )
      
       select val,Level
       from
       (
       select dense_rank() over (partition by left([Path],charindex('/',[Path] + '/')-1) order by Level desc) AS Rnk,
       left([Path],charindex('/',[Path] + '/')-1)  as val,Level
       from cte 
       )t
       Where Rnk <= 2

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

imrul
Starting Member

36 Posts

Posted - 2012-05-17 : 06:22:05

Thanks a lot

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2012-05-19 : 15:08:03

wc

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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