SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


SUM and Addition of Null


SUM and Addition of Null

Author
Message
iBar
iBar
SSCrazy
SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)SSCrazy (2.6K reputation)

Group: General Forum Members
Points: 2644 Visits: 842
Comments posted to this topic are about the item SUM and Addition of Null
Raghavendra Mudugal
Raghavendra Mudugal
SSCarpal Tunnel
SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)SSCarpal Tunnel (4.3K reputation)

Group: General Forum Members
Points: 4348 Visits: 2958
:-) Simply Nice.

(note: aliasing the columns in the first select statement will be enough)

ww; Raghu
--
The first and the hardest SQL statement I have wrote- "select * from customers" - and I was happy and felt smart.
angad.singh88
angad.singh88
SSC-Enthusiastic
SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)SSC-Enthusiastic (162 reputation)

Group: General Forum Members
Points: 162 Visits: 81
Really Nice !

Simple and Best. Smile

--Angad
(Truth is Higher, Still Higher is Truthful Living)

--Angad Singh
If I Stop Learning, I Cease to Be A SIKH !
kapil_kk
kapil_kk
SSCertifiable
SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)

Group: General Forum Members
Points: 7663 Visits: 2776
Nice question to start week with +1 Smile

_______________________________________________________________
To get quick answer follow this link:
http://www.sqlservercentral.com/articles/Best+Practices/61537/
Koen Verbeeck
Koen Verbeeck
SSC Guru
SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)SSC Guru (99K reputation)

Group: General Forum Members
Points: 99805 Visits: 13323
Easy one for the Monday :-D
Especially easy because the way the answers were structured, you only had to calculate the last column :-)


How to post forum questions.
Need an answer? No, you need a question.
What’s the deal with Excel & SSIS?
My blog at SQLKover.

MCSE Business Intelligence - Microsoft Data Platform MVP
derek.colley
derek.colley
Hall of Fame
Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)

Group: General Forum Members
Points: 3258 Visits: 603
Excellent question, thanks very much. Have a good week.

---

Note to developers:
CAST(SUBSTRING(CAST(FLOOR(NULLIF(ISNULL(COALESCE(1,NULL),NULL),NULL)) AS CHAR(1)),1,1) AS INT) == 1
So why complicate your code AND MAKE MY JOB HARDER??!Crazy

Want to get the best help? Click here http://www.sqlservercentral.com/articles/Best+Practices/61537/ (Jeff Moden)
My blog: http://uksqldba.blogspot.com
Visit http://www.DerekColley.co.uk to find out more about me.

Hardy21
Hardy21
SSCarpal Tunnel
SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)SSCarpal Tunnel (4K reputation)

Group: General Forum Members
Points: 4010 Visits: 1399
Nice & Easy one..

Thanks
Carlo Romagnano
Carlo Romagnano
SSCrazy Eights
SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)SSCrazy Eights (9.4K reputation)

Group: General Forum Members
Points: 9361 Visits: 3441
Remember that SUM may return NULL, so SUM(num1)+SUM(num2) may lead to NULL:
select 
sum(num1) AS S1,
sum(num2) AS S2,
sum(num1) + sum(num2) AS S3,
sum(num1 + num2) AS S4
from
(
select cast('1' as int) as num1, cast(NULL as int) as num2
union all
select '1' as num1, NULL as num2
union all
select '1' as num1, NULL as num2
union all
select NULL as num1, NULL as num2
) as t


The above select return 3,NULL,NULL,NULL
Stuart Davies
Stuart Davies
SSCrazy Eights
SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)SSCrazy Eights (9K reputation)

Group: General Forum Members
Points: 9021 Visits: 4840
Thanks for an easy start to the week

-------------------------------Posting Data Etiquette - Jeff Moden Smart way to ask a questionThere are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand (the world). There is no such thing as a dumb question. ― Carl Sagan I would never join a club that would allow me as a member - Groucho Marx
kapil_kk
kapil_kk
SSCertifiable
SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)SSCertifiable (7.7K reputation)

Group: General Forum Members
Points: 7663 Visits: 2776
good one Carlo

_______________________________________________________________
To get quick answer follow this link:
http://www.sqlservercentral.com/articles/Best+Practices/61537/
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search