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Query to sum only few values in a same column


Query to sum only few values in a same column

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park1432
park1432
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Hello all,
I am kind of new to sql server and I am stuck on this. It may sound stupid and simple but here is my situation:
CREATE TABLE For_Test(ID int not null,Name varchar(255),Amount decimal(18,2))
INSERT INTO For_Test VALUES (1,'A',220)
,(2,'B',340)
,(3,'C',540)
,(4,'D',780)

I just want to add amount of ID 1,2 and 3 excluding 4. There will be more than four rows in a table. So, how to do this?
bitbucket-25253
bitbucket-25253
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Here is a quick method. NOT recommended for speed or flexibility ... If you would outline your requirements in greater detail perhaps some one can / will give you further assistance.

   CREATE TABLE For_Test(ID int not null,Name varchar(255),Amount decimal(18,2))
INSERT INTO For_Test VALUES (1,'A',220),(2,'B',340),(3,'C',540)
,(4,'D',780)

--I just want to add amount of ID 1,2 and 3 excluding 4.
SELECT SUM(Amount) FROM For_Test WHERE ID in (1,2,3)

--Different select statement but same result
SELECT SUM(Amount) FROM For_Test WHERE ID <> 4
--Yet a 3rd way
SELECT SUM(Amount) FROM For_Test WHERE ID < 4
--Yet a 4th way - using MOD function
SELECT SUM(Amount) FROM For_Test WHERE ID % 4 <> 0;
Result:
(No column name)
1100.00



If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

Before posting a performance problem please read
park1432
park1432
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Thank you very much. This will work for me now.
Jeff Moden
Jeff Moden
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park1432 (2/3/2013)
Thank you very much. This will work for me now.


Since you're new, I have to ask, which one is the "This" you speak of and why did you choose it?

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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jshahan
jshahan
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What I would ask is "What characteristic/attribute of the fourth record makes you want to exclude it?"
Jeff Moden
Jeff Moden
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@park1432,

Two way street here. We're actually interested in your problem and would like a bit more info if, for nothing else, a little education on a strange request. ;-)

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
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