Solved

SQL server creating a query

Posted on 2008-10-29
7
282 Views
Last Modified: 2012-05-05
Hi im offering maximum points to who ever can help me
I am creating a database which contains a table structure, this structure table has four different levels within it.

For example level 4 has a parent code that relates to level 3 which level 3 parent code is related to level 2 and the level 2 parent code is related to level 1

i am tryin to create a veiw in sql server that will show all records

so say someone is on level four then it will go to all the levels,, where as a person maybe just relate to level 3 or 2 or 1 but it wont recognise it as the veiw only shows from level four downwards

i have attached a file to show you

as i sed it only shows from level four but i want to show all the levels down the side for referencing

for example if there goin from level 2 then it will show show level 2 and level 1

and if from level 1 it will only show level 1

etc etc

Please help me


untitled.bmp
0
Comment
Question by:LukeConey
  • 4
  • 2
7 Comments
 
LVL 39

Expert Comment

by:BrandonGalderisi
ID: 22832417
You don't need 4 tables to store 4 levels.

Below is an example of a single table that uses CTE's to handle your recursive parent/child data.
create table #Levels

 (LevelID        int identity not null

 ,ParentLevelID  int null

 ,code           varchar(32)

 ,sequence_code  varchar(255)

 )

go
 

insert into #Levels (ParentLevelID,code,sequence_code) values(null, '000001','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(1, '000002','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(2, '000003','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(3, '000004','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(null, '100001','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(5, '100002','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(6, '100003','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(7, '100004','0001')
 

go

select * from #Levels
 

;with AllLevels as

(select levelid,parentlevelid,1 as theLevel from #Levels

where parentLevelID is null

union all

select l.levelid,l.parentlevelid,al.theLevel+1 from #Levels l

join AllLevels al

on l.parentlevelid = al.levelid)

select * from alllevels al

join #Levels l

on al.levelID = l.LevelID

go

drop table #Levels

Open in new window

0
 

Author Comment

by:LukeConey
ID: 22832477
yeah i understand what you are sayin

i already have them as one table but i want to show how they work down twoards level 1

not just all in one column if you understand that

i created veiws so that it would select all levels and show how they work from 4 to 1 but i want to also show if someone just buys a kitchen they are level 1 and i want it to show the 4 levels which will stay at 1 whereas from 4 i will show 4 levels but it will work down to 1

0
 
LVL 39

Accepted Solution

by:
BrandonGalderisi earned 500 total points
ID: 22832617
OK.  I'm still not sure what you are attempting to display, but does this help you display the data in a format closer to what you want?
create table #Levels

 (LevelID        int identity not null

 ,ParentLevelID  int null

 ,code           varchar(32)

 ,sequence_code  varchar(255)

 )

go
 

insert into #Levels (ParentLevelID,code,sequence_code) values(null, '000001','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(1, '000002','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(2, '000003','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(3, '000004','0000')

insert into #Levels (ParentLevelID,code,sequence_code) values(null, '100001','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(5, '100002','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(6, '100003','0001')

insert into #Levels (ParentLevelID,code,sequence_code) values(7, '100004','0001')
 

go

select * from #Levels
 

;with AllLevels as

(select levelid as rootLevel,levelid,parentlevelid,1 as theLevel,cast(Code as nvarchar(max)) code,cast(sequence_code as nvarchar(max)) sequence_code from #Levels

where parentLevelID is null

union all

select al.rootLevel,l.levelid,l.parentlevelid,al.theLevel+1,al.code + '/' + l.Code,al.sequence_code + '/' + l.sequence_code from #Levels l

join AllLevels al

on l.parentlevelid = al.levelid)

select * from alllevels al

join #Levels l

on al.levelID = l.LevelID

go

drop table #Levels

Open in new window

0
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

 

Author Comment

by:LukeConey
ID: 22832947
its not workin
0
 
LVL 39

Expert Comment

by:BrandonGalderisi
ID: 22832966
The query that I posted isn't working?  It works for me.  I know that's a typical excuse, but I copied out what I posted and ran it, it works.  

What's it doing/not doing?


0
 
LVL 39

Expert Comment

by:BrandonGalderisi
ID: 23395478
This question has been open for 3 months now.  You didn't post anything about what ISN'T working so I think it's fair to assume it IS working.  Can you close this up!

Thanks.
0

Featured Post

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

I wrote this interesting script that really help me find jobs or procedures when working in a huge environment. I could I have written it as a Procedure but then I would have to have it on each machine or have a link to a server-related search that …
Let's review the features of new SQL Server 2012 (Denali CTP3). It listed as below: PERCENT_RANK(): PERCENT_RANK() function will returns the percentage value of rank of the values among its group. PERCENT_RANK() function value always in be…
Via a live example, show how to extract insert data into a SQL Server database table using the Import/Export option and Bulk Insert.
Viewers will learn how the fundamental information of how to create a table.

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now