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How to exclude values in sql ??

Author

Topic

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-24 : 09:57:44

Hi,
please help me with exclude values when Account have different values (rooms both A and B), i.e

Account Room
10122 A
10122 B
10130 B
10131 C

Thank you advanced! Blue

James K
Master Smack Fu Yak Hacker

3873 Posts

Posted - 2013-10-24 : 10:12:55

Either of these.

SELECT Account, room 
FROM Tbl
GROUP BY Account
HAVING COUNT(*) = 1

SELECT Account, Room FROM (
SELECT Account, Room,
	COUNT(*) OVER (PARTITION BY account) AS N
FROM Tbl
) s WHERE N=1

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-24 : 10:43:18

which values you want to exclude?
Entire Account records or just duplicate instances?
What would be output for above sample data?

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

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-25 : 02:23:11

Thank you James, I will try this.

@visakh16: I need to include only those accounts where have 1 room value. The results shoulb be:
Account Room
10130 B
10131 C

Thanks you for answer!

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-25 : 02:28:23

then previous suggestion would work for you

or even this


SELECT Account, Room
FROM Tbl t
WHERE NOT EXISTS(SELECT 1
                 FROM Tbl
                 WHERE Account = t.Account
                 AND Room <> t.Room
                 )

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

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-25 : 07:57:37

Thank you, but ... I didn´t get result I wish :S
There were still included Accounts what have rooms A and rooms B.
I have tried all 3 examples.

James K
Master Smack Fu Yak Hacker

3873 Posts

Posted - 2013-10-25 : 08:25:32

Can you post a sample data set that demonstrates the problem?

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-25 : 08:30:35

quote:
Originally posted by Blue_2509

Thank you, but ... I didn´t get result I wish :S
There were still included Accounts what have rooms A and rooms B.
I have tried all 3 examples.

Then i'm sure you've some other rules which you've not told us so far
Post some sample data to show your exact scenario and then explain what you want

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

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-28 : 07:14:00

select
account,
Room,
sum(amounts) as booked
from table1
join ...
where --
group by
account,
Room
having count(accont) =1

And results come:

Account,Room,booked
53925,'E 4.000000
54834,'L 1.000000
60817,'A 0.000000
60816,'A 1.000000
60816,'D 1.000000
60816,'C 2.000000
62698,'B 8.000000
62798,'D 2.000000

I need that 60816 will not comes to report results.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-28 : 07:54:23

[code]
SELECT Account, Room,amounts
FROM Tbl t
WHERE NOT EXISTS(SELECT 1
FROM Tbl
WHERE Account = t.Account
AND Room <> t.Room
)
[/code]

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

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-28 : 08:39:19

I´m very grateful for answer. But its bit confusing me. Do you mean query like this?

select
t1.account,
t1.room,
t1.booked

from (

select
account,
room,
sum(booked)
from Table1
join ...
where ...
group by
account,
room)t1

where not exists (select 1 from t1 where t1.account =account and room <>t1.room

group by

select
t1.account,
t1.room,
t1.booked

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-28 : 09:09:53

nope just this


select
account,
room,
booked
from Table1 t1
join ... 
where ... 
and not exists (select 1 from Table1 
                where account = t1.account 
                and room <>t1.room)

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

Blue_2509
Starting Member

8 Posts

Posted - 2013-10-29 : 03:07:32

Thanks for help! It seems to work now :)

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-29 : 03:16:26

welcome

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

waterduck
Aged Yak Warrior

982 Posts

Posted - 2013-10-29 : 22:17:00

visakh, sorry to bother...can i know why using "not exist" but not using "having count(*) = 1"?
just for my better understanding, thanks alot ya

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-30 : 01:07:20

quote:
Originally posted by waterduck

visakh, sorry to bother...can i know why using "not exist" but not using "having count(*) = 1"?
just for my better understanding, thanks alot ya

yon can use both ways as they're equivalent
But NOT EXISTS might have slight upper hand as it relies on boolean result rather than performing aggregation to find count

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

waterduck
Aged Yak Warrior

982 Posts

Posted - 2013-10-30 : 02:43:45

noted and thx!

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-30 : 03:23:40

welcome

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

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