Solved

Top 3 records in sql server by group

Posted on 2014-11-10
4
120 Views
Last Modified: 2014-11-12
item     whse       lot         qty         NumericDate
x               1          sdf        200             20141104
x               1          qwe        20             20141103
x               1          4rff       210             20141104
x               1          uyh       220             20141104
y               1          sdf        201             20141101
y               1          fgh        202             20141104
y               1          0de        203            20141104
y               1          90o       204             20141105



The answer that I need is to grab the top 3 records per Item, per Warehouse by NumericDate
if their is a tie...then the alphanumeric asc value of the lot that occurs first..

So a total of 6 rows to return...

Hopefully this I doable
0
Comment
Question by:Mikeyman_01
  • 2
4 Comments
 
LVL 34

Expert Comment

by:Mike Eghtebas
ID: 40434094
Do you mean like

item     whse       lot         qty         NumericDate
x               1          sdf        200             20141104
x               1          qwe        20             20141103
x               1          4rff       210             20141104
y               1          sdf        201             20141101
y               1          fgh        202             20141104
y               1          0de        203            20141104
^--- top 3 from each group?
0
 

Author Comment

by:Mikeyman_01
ID: 40434157
yes ...That is what I mean...
0
 
LVL 13

Accepted Solution

by:
Koen Van Wielink earned 500 total points
ID: 40434158
Will this work? You didn't specify your sorting order very clearly, so it might need some tweaking:

Create table #stock
(	Item	nvarchar(12)
,	Whse	int
,	Lot		nvarchar(50)
,	Qty		int
,	NumericDate	int
)

insert into #stock
values	('x', 1, 'sdf', 200, 20141104)
	,	('x', 1, 'qwe', 20, 20141103)
	,	('x', 1, '4rff', 210, 20141104)
	,	('x', 1, 'uyh', 220, 20141104)
	,	('y', 1, 'sdf', 201, 20141101)
	,	('y', 1, 'fgh', 202, 20141104)
	,	('y', 1, '0de', 203, 20141104)
	,	('y', 1, '90o' ,204, 20141105)
	
select	s.*
from	(Select	item
			,	whse
			,	lot
			,	qty
			,	NumericDate
			,	row_number() over (partition by item, whse 
					 order by item, whse, NumericDate desc, lot asc)
					 as 'Ranking'
		from	#stock) as s
where	s.Ranking <= 3

drop table #stock

Open in new window

0
 

Author Closing Comment

by:Mikeyman_01
ID: 40437275
Koen,

Very well done
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Binding error when running a view SQL Server 3 26
SQL Log size 3 17
sql server query 18 34
query linked sql table field from access 4 19
Everyone has problem when going to load data into Data warehouse (EDW). They all need to confirm that data quality is good but they don't no how to proceed. Microsoft has provided new task within SSIS 2008 called "Data Profiler Task". It solve th…
For both online and offline retail, the cross-channel business is the most recent pattern in the B2C trade space.
Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

808 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