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

 All Forums
 General SQL Server Forums
 New to SQL Server Programming
 GROUP BY in one row

Author  Topic 

romeck
Starting Member

16 Posts

Posted - 2013-07-29 : 01:05:30
I have table:

Name type nr
adam pupil 1
adam pupil 2
martha pupil 1
martha pupil 1
martha pupil 2
martha pupil 2
martha pupil 2
martha pupil 2
how can i make a query with gropuing to have :
name type nr nrcount nr nr count
adam pupil 1 1 2 1
martha pupil 1 2 2 4

So basicaly each group should be in the same row not like in group statemant that all diffrtent groups in new line. i can use functions but stil it will be probably consume more time to execute.

THQ

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-07-29 : 01:59:31
will the values be always 1 and 2?

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs
Go to Top of Page

romeck
Starting Member

16 Posts

Posted - 2013-07-29 : 02:16:36
quote:
Originally posted by visakh16

will the values be always 1 and 2?

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs




1. yes there will be always just two values in that column (there will be number of two months that user want to check)
2. no - what if there are many unspecified values ?
Go to Top of Page

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-07-29 : 02:38:47
[code]
declare @t table
(
Name varchar(50),
[type] varchar(50),
nr int
)
insert @t
values ('adam', 'pupil', 1),
('adam', 'pupil', 2),
('martha', 'pupil', 1),
('martha', 'pupil', 1),
('martha', 'pupil', 2),
('martha', 'pupil', 2),
('martha', 'pupil', 2),
('martha', 'pupil', 2)


select Name,[type],
MAX(case when nr=1 THEN nr END) AS [1],
COUNT(case when nr=1 THEN nr END) AS [1],
MAX(case when nr=2 THEN nr END) AS [2],
COUNT(case when nr=2 THEN nr END) AS [1]
from @t
group by Name,[type]



output
----------------------------------------------
Name type 1 1 2 1
----------------------------------------------
adam pupil 1 1 2 1
martha pupil 1 2 2 4

[/code]

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs
Go to Top of Page
   

- Advertisement -