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Need Help on User Tree Hierarchy with Addition/Deletion Option Expand / Collapse
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Posted Monday, September 24, 2012 5:10 PM
Grasshopper

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Last Login: Wednesday, December 12, 2012 11:40 AM
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Hello All,

I have situation where if user pass the userid then their respective hierarchy display.Here is SP

CREATE PROCEDURE TraverseUsersRecursive
@UserId INT
AS

/* to change action on each vertex, change these lines */
DECLARE @Name VARCHAR(100)
SELECT @Name=(SELECT (FRST_NM + '' + LST_NM) as name
FROM sys_usr WHERE usrid=@UserId)
PRINT SPACE(@@NESTLEVEL*2)+STR(@UserId)+'|| '+@Name
DECLARE submenu CURSOR LOCAL FOR
SELECT usrid FROM sys_usr WHERE APROV_ID=@UserId
OPEN submenu
FETCH NEXT FROM submenu INTO @UserId
WHILE @@FETCH_STATUS=0 BEGIN
EXEC TraverseUsersRecursive @UserId
FETCH NEXT FROM submenu INTO @UserId
END
CLOSE submenu
DEALLOCATE submenu

Result will be(please see the attachment)
800000000|| Dave Smith
810000000|| Michael Chak
811000000|| David Boon
811100000|| Glen Macgrath
811110000|| Alex Boon
811111000|| Jim Foley
811111100|| Sean Rody
811111110|| Lucian
811111111|| Ferrer
821000000|| Stephan
822000000|| Robin
811111110|| Miranda
811111112|| Sohail
823000000|| Imran
824000000|| Amir

Now I have situation where I need to add/delete new user(deletion happen only by Admin),each user can add other users and any dummy user will replace any user.
Can any body help me to design SP.
Appreciate your help.
Thanks in Advance
R
Post #1363749
Posted Wednesday, September 26, 2012 3:59 AM


Old Hand

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Last Login: Friday, June 27, 2014 8:03 AM
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The usual solution for this is a recursive CTE.

Look at
http://www.sqlservercentral.com/articles/Development/recursivequeriesinsqlserver2005/1760/
for example.

If you post some proper test data it will be easier for people to help!

Also, do you want help designing an sp to display the data, or to make the changes?
Post #1364543
Posted Wednesday, September 26, 2012 4:28 AM


Ten Centuries

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Laurie is right. Please post DDL, Sample Data and the Expected Result and we will give you a sample solution using a Recursive CTE.

Vinu Vijayan

For better and faster solutions please check..."How to post data/code on a forum to get the best help" - Jeff Moden
Post #1364556
Posted Wednesday, September 26, 2012 5:05 AM
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This should do the trick, but with out example data it might be off the mark, luckily I was at a loose end for an hour or to and pus some data together based on the sample.

DECLARE @sys_user TABLE 
(UserId bigint
,FRST_NM varchar(100)
,LST_NM varchar(100)
,APROV_ID bigint)

Insert into @sys_user
Select 800000000, 'Dave', 'Smith', NULL
UNION Select 810000000, 'Michael', 'Chak',800000000
UNION Select 811000000, 'David', 'Boon',810000000
UNION Select 811100000, 'Glen','Macgrath',811000000
UNION Select 811110000, 'Alex', 'Boon',811100000
UNION Select 811111000, 'Jim', 'Foley',811111000
UNION Select 821000000,'Stephan', '',800000000

DECLARE @UserId BIGINT=800000000

select * from @sys_user

;With submenu (UserId,Name,APROV_ID,lvl)
AS
(
Select UserId, FRST_NM + ' '+LST_NM as Name,APROV_ID, 0 lvl
From @sys_user
Where UserId=@UserId
Union ALL Select
su.UserId
,su.FRST_NM + ' '+su.LST_NM
,su.APROV_ID
,sm.lvl+1
From @sys_user su
Join submenu sm ON su.APROV_ID=sm.UserId
)
Select SPACE(lvl*2)+STR(UserID) + '|| '+Name,lvl
From submenu
Order by UserId

PS: I see you're a bit of a cricket fan, hope you're enjoying the T20.


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Post #1364570
Posted Wednesday, September 26, 2012 5:33 AM
Grasshopper

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Thank you all for response. Now my next question is how to handle new user addition / substitution if any user is on leave. My thought is replace temp user with absent user.for example: if a = 1,b = 2 then using temp variable I have to swap a= 2 ,b = 1.please help me in this.
Post #1364580
Posted Wednesday, September 26, 2012 6:02 AM
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I think to help with the substitution we're going to need sample data, and the rules.

I take it sys_user has a column or lookup to another table to show when a person is on holiday and who is covering for them, but without the structures and sample data we will struggle to help any further.


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Post #1364595
Posted Wednesday, September 26, 2012 7:37 AM


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Instead of mimicking pointer chains with cursors, loops and other procedural code (ugh! how non-relational!), look at the nested sets model. Since you did not bother to post DDL, we cannot correct it.

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Post #1364675
Posted Wednesday, September 26, 2012 8:19 AM
Grasshopper

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Hello All, I have already provided the Cursor(sort of DDL) which are creating the tree view. Also i tried to provide the tree view result of cursor.Thank you re write in recursive way to handle the tree view.Answer to Jason question, User information is define in single table,which include user name, user id ,approver id ,Role .Rule which I need to define here

1) Super Admin can add any user at any node level.First it will scan whether userid is exist or not then new add new user.
2) In case of absent of user, another user(same level or any different level user) will perform his/her role activity
3) Once user will come back then user will insert in same role
4) Admin can delete any user (in case of user leave the org) and corresponding child node will assign to another user.

These are above rule need to implement.Please help me in this.
Thanks
Rohit
Post #1364719
Posted Wednesday, September 26, 2012 10:37 AM


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roh_ranjan (9/26/2012)
Hello All, I have already provided the Cursor(sort of DDL) which are creating the tree view. Also i tried to provide the tree view result of cursor.Thank you re write in recursive way to handle the tree view.Answer to Jason question, User information is define in single table,which include user name, user id ,approver id ,Role .Rule which I need to define here

1) Super Admin can add any user at any node level.First it will scan whether userid is exist or not then new add new user.
2) In case of absent of user, another user(same level or any different level user) will perform his/her role activity
3) Once user will come back then user will insert in same role
4) Admin can delete any user (in case of user leave the org) and corresponding child node will assign to another user.

These are above rule need to implement.Please help me in this.
Thanks
Rohit


A cursor is nothing like DDL. A cursor is a poor performing example of DML. DDL is create table statements. The problem is that we can't see from here what you see. We don't know the project and we don't have any tables to run queries against.

If you want some real help with your code please take a look at the first link in my signature about best practices.


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Post #1364830
Posted Wednesday, September 26, 2012 11:59 AM
Grasshopper

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Hello Sean

Thank you for response.I completely agree what you are saying.If you see the above Jason response where he created temp table and show the hierarchy.In same table I need to perform addition/deletion/substitution of the user.Can you help me in this.
Thanks
R
Post #1364867
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