I Wana to retrieve all Nested Sub Categories In Nested Ordered Manner.

Some one Help me soon The Result Shuld be in Following Manners.

Main Cat

– Sub A of Main

—-Child Sub A of Sub A of Main

—-Child Sub B of Sub A of Main

—-Child Sub C of Sub A of Main

– Sub B of Main

—-Child Sub A of Sub B of Main

—-Child Sub B of Sub B of Main

—-Child Sub C of Sub B of Main

– Sub C of Main

—-Child Sub A of Sub C of Main

—-Child Sub B of Sub C of Main

—-Child Sub C of Sub C of Main

there is mention “OPTION (MAXRECURSION 5)” so it will throw error beyond 5th recursion, while you have made max recursion to 200, so it will throw error after 200th recursion..

SELECT * FROM Groups_CTE
==================================
But it didn’t work, it thow exception says:
“The statement terminated. The maximum recursion 100 has been exhausted before statement completion.”

What should I do to make it work properly ?

Thanx

I need help with recursive operation like

Parents 1
———Chield1
———Chield2
——Sub -Chield1
——Sub -Chield2
Parents 2
Parents3
———Chield1
———Chield2

I want to display data exactly like above example with ‘-’ operator.
Please provide an query.
thanks & regards
Brijesh Shah

Take notice that ‘lvl’ field there which tells how deep we are. In recursion part I check that lvl < 2 and recursion stops there if it ever goes so deep.

WITH
cte(emp_id, emp_name, sup_id, sup_name, lvl) AS
(
SELECT e.emp_id, e.emp_name, s.emp_id, s.emp_name, 1
FROM t_employee e
LEFT OUTER JOIN t_employee s ON s.emp_id = e.supervisor_id
),
cte_start(emp_id, emp_name, sup_id, sup_name, lvl) AS
(
SELECT e.emp_id, e.emp_name, s.emp_id, s.emp_name, 1
FROM t_employee e
JOIN t_employee s ON s.emp_id = e.supervisor_id
LEFT OUTER JOIN t_employee sub ON sub.supervisor_id = e.emp_id
WHERE sub.emp_id IS NULL
),
cte_recur(emp_id, emp_name, sup_id, sup_name, lvl) AS
(
SELECT emp_id, emp_name, sup_id, sup_name, lvl
FROM cte_start
UNION ALL
SELECT c.emp_id, c.emp_name, c.sup_id, c.sup_name, r.lvl + 1
FROM cte c
JOIN cte_recur r ON r.sup_id = c.emp_id
where r.lvl < 2
)
SELECT DISTINCT emp_name 'Employee name', sup_name 'Supervisor name', lvl
FROM cte_recur

UNION ALL

SELECT
whatever…
WHERE
menulevel < 5

Using cte I can get the tree structure for the menu, however I want to be able to insert the tree structure with positioning. As users with also be able to change the positioning of the menu items.

As under the news sub menu World news should be before UK news.

Any help and guidance will be greatly appreciated.

Is this even possible using CTE?

DECLARE @menu TABLE
(
id int, parentId int, title varchar(128)
)

INSERT @menu
SELECT 1,NULL,’Home Page’ UNION ALL
SELECT 2,1,’News’ UNION ALL
SELECT 3,2,’World’ UNION ALL
SELECT 4,2,’UK’ UNION ALL
SELECT 5,2,’Business’ UNION ALL
SELECT 6,1,’Sports’ UNION ALL
SELECT 7,6, ‘Football’ UNION ALL
SELECT 8,6,’Tennis’ UNION ALL
SELECT 9,6, ‘Formula One’ UNION ALL
SELECT 10,6, ‘Boxing’ UNION ALL
SELECT 11,2, ‘Politics’ UNION ALL
SELECT 12,6, ‘Cricket’

;WITH MenuTree AS
(
SELECT
M.id,
M.parentId,
M.title,
0 AS menuLevel,
Cast(M.title + ‘\\’ AS varchar(max)) AS treePath,
null AS position
FROM
@menu AS M
WHERE
M.id = 1

UNION ALL

SELECT
M.id,
M.parentId,
M.title,
menuLevel + 1,
Cast(MenuTree.treePath + M.title + ‘\\’ AS varchar(max)) AS treePath,
null AS position
FROM @menu AS M
INNER JOIN MenuTree ON M.ParentID = MenuTree.id
)

SELECT * FROM menuTree order by treePath

how do i get the positioning…

id – title – position
1 Home Page – 1
2 News – 1
5 Business – 2
11 Politics – 3
4 UK – 4
3 World – 5
6 Sports – 2
10 Boxing – 1
12 Cricket – 2
7 Football – 3
9 Formula One – 4
8 Tennis -5

Thanks for your time.

DECLARE @txt as nvarchar(100)
SET @txt = ‘Banana;Chocolate;Milk;Bread;’;

WITH ParseText( Ltxt, Rtxt) AS (

SELECT
Ltxt = LEFT (@txt, CHARINDEX( ‘;’, @txt)-1 )
,Rtxt = RIGHT(@txt, LEN(@txt) – CHARINDEX( ‘;’,@txt) )

UNION ALL
SELECT
Ltxt = LEFT(tn.Rtxt, CHARINDEX( ‘;’,tn.Rtxt)-1 )
,Rtxt = RIGHT(tn.Rtxt, LEN(tn.Rtxt) – CHARINDEX( ‘;’,tn.Rtxt) )
FROM ParseText tn
where Rtxt ”
)
SELECT
Ltxt = CASE WHEN Ltxt = ” THEN RTxt ELSE Ltxt END
FROM ParseText

I have a problem with MAXRECURSION hint of CTE query
below
declare @id int
set @id=1;

with cte(member_id,lft,rgt) as (
select member_id,0,0
from [MultilevelChain].[dbo].[member_info]
where member_id=@id

union all

select t.member_id,1-t.position, t.position
from [MultilevelChain].[dbo].[member_info] t
inner join cte c on c.member_id = t.sponser_id)
select sum(lft) as LeftNode,
sum(rgt) as RightNode

from cte
option (maxrecursion 32767)

it gives error message like
Msg 530, Level 16, State 1, Line 5
The statement terminated. The maximum recursion 32767 has been exhausted before statement completion.

Here all below levels are searched but problem with top levelit has attach with 6 node under it. all levels are ok but not show id as 1 pls help me. i waitig to ur reply

Tanks regards
Niranjan Singh Pune

It is really working.

Thanks a lot.

Set the MAXRECURSION hint of CTE query to any nonnegative value between 0 and 32767 as below:

SELECT EmployeeID, ManagerID, Title
FROM cteEmployee
OPTION (MAXRECURSION 200);

When 0 is specified, no limit is applied. If this option is not specified, the default limit is 100.

Regards,
Pinal Dave

How can we avoid the error
“Msg 530, Level 16, State 1, Line 1
The statement terminated. The maximum recursion 3 has been exhausted before statement completion. ”

if cte goes above 100 levels, then what need to do?

I need help with recursive operation

I do have 2 tables

#1 Inspections
ID
PARENT_ID
POSITION

#2 Resources
RESOURCES_ID
CULTURE_LANGUAGE
CAPTION

DATA SAMPLE (OUTPUT)

SELECT a.id, a.parent_id, a.position, b.culture_language, b.caption
FROM Inspections AS a
INNER JOIN InspectionsResources AS b ON
a.id = b.resource_id where culture_language=’en’

VEHICLES ID = 1, PARENT_ID = 0, POSITION=1
FORKLIFTS ID = 2, PARENT_ID = 0, POSITION=2
CARS ID = 3, PARENT_ID = 1, POSITION=1
MOTORCYCLES ID = 4, PARENT_ID = 1, POSITION=2
DOORS ID = 5, PARENT_ID = 3, POSITION=1
HANDLES ID = 6, PARENT_ID = 3, POSITION=2
…

I need to load all data for CARS only!!

Thank you Pinal

Alain

A recursive CTE can potentially go on forever. So, SQL Server limits it to 100 cycles. MAXRECURSION allows you to change that limit between 1 and 32767 or 0 which means unlimited.

I am student learning SQL server. I actaully didnot know what exactly maxrecursion function do?

can you please be precise.

Thanks&Regards,

Raghuveer.

Thank you for the content, i was looking for the same.

Please provide an example query.