Please start any new threads on our new site at http://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

Our new SQL Server Forums are live! Come on over! We've restricted the ability to create new threads on these forums.

SQL Server Forums
Profile | Active Topics | Members | Search | Forum FAQ
 
Register Now and get your question answered!
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 General SQL Server Forums
 New to SQL Server Programming
 Select top 1 with like ...? inline or SP?
 Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

dainova
Starting Member

31 Posts

Posted - 11/12/2012 :  14:13:00  Show Profile  Reply with Quote
What I'm trying to achieve:

Find sample entries from table having most occurences in #temp(top 3), I group by column <cmsg> that can have many diff values (it's lor file error description),
so I'm grouping it by except take from the middle, bypassing timestamps (e.g. substring(cmsg,15,20) = 'ERROR Platform.Information').

I was thinking to do this with simple Select but stuck, I face now the case that I need to use <LIKE IN (list1,list2) and it won't work?
Should I code some kind of loop or it's still possible with select. I'm kind of limited in my resources re defining sp or functions, but I still can do script with cursors, etc??. I don't think I can do this with Join on partial column?
so psedo logic would be something like this:

--select A:
select top 3 a.* from (
select count(*) as CC1, substring(cmsg,15,20) as STR1 from #temp
group by substring(cmsg,5,10) ) a order by CC1 desc
-- 120 | ERROR Platform1
-- 115 | ERROR Platform2
-- 78 | Error Page1

--Select B:
for i in (1,2,3) do
select * from #temp where cmsg like (select #i from select A)
-- 1 | server1 | 2011-11-22 | 14:04:33 ERROR Platform1 failure | other fields
-- 2 | server1 | 2011-11-23 | 11:04:33 ERROR Platform2 problem| other fields
-- 3 | server1 | 2011-11-22 | 09:04:33 Error Page1 null.. | other fields

TG
Flowing Fount of Yak Knowledge

USA
6065 Posts

Posted - 11/12/2012 :  14:24:34  Show Profile  Reply with Quote
Perhaps this?

;with A (CC1, STR1) as
(
       select top 3 count(*)
              , substring(cmsg,15,20) 
       from #temp
       group by substring(cmsg,5,10) 
       order by count(*) desc
) 
select t.*
from   #temp1 t
join   A a on a.STR1 = substring(t.cmsg,5,10)  


EDIT:
reposted - I forgot to include the "top 3" thing

Be One with the Optimizer
TG

Edited by - TG on 11/12/2012 15:23:54
Go to Top of Page

dainova
Starting Member

31 Posts

Posted - 11/12/2012 :  17:21:29  Show Profile  Reply with Quote
Thanks, TG,
I think this still will brings me multiple records for each group = substring(t.cmsg,15,10), so I need one more group by probably

Edited by - dainova on 11/12/2012 17:30:45
Go to Top of Page
  Previous Topic Topic Next Topic  
 Reply to Topic
 Printer Friendly
Jump To:
SQL Server Forums © 2000-2009 SQLTeam Publishing, LLC Go To Top Of Page
This page was generated in 0.04 seconds. Powered By: Snitz Forums 2000