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Shadab Shah
Starting Member
India
23 Posts |
 Posted - 07/19/2012 : 01:00:33
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I am a newbie and was trying around and come up with this problem:
Suppose i have a table A having column as:
col1
100
350
-120
100
i want the output as
col1
100
450
330
430
The output is actually addition of 100+350=450,450+(-120)=330,330+100=430.
And i have only this column in my table. |
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khtan
In (Som, Ni, Yak)
Singapore
16745 Posts |
Posted - 07/19/2012 : 02:35:09
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how do you determine the order ?
There isn't any specific sequence or order of how record is stored in the table. You determine how do you want the records to return using the ORDER BY clause in the SELECT statement
KH
Time is always against us
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Shadab Shah
Starting Member
India
23 Posts |
Posted - 07/19/2012 : 02:49:11
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| Now that's the challenge over here. I want to achieve the above output with-out binding it with order by or groupby in the select statement. Actually i don't know whether this can be achieve though SQL Server or not |
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khtan
In (Som, Ni, Yak)
Singapore
16745 Posts |
Posted - 07/19/2012 : 02:58:19
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quote:
Originally posted by Shadab Shah
Now that's the challenge over here. I want to achieve the above output with-out binding it with order by or groupby in the select statement. Actually i don't know whether this can be achieve though SQL Server or not
if you have only one column, how do you determine the required sequencing of the record return ?
KH
Time is always against us
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Shadab Shah
Starting Member
India
23 Posts |
Posted - 07/19/2012 : 05:42:20
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| i think if i am able to understand what you mean to say then my answer would be : The sequence should be 100 , 450(100+350) ,330(450+(-120)) , 430(330+100) |
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khtan
In (Som, Ni, Yak)
Singapore
16745 Posts |
Posted - 07/19/2012 : 06:03:36
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quote:
Originally posted by Shadab Shah
i think if i am able to understand what you mean to say then my answer would be : The sequence should be 100 , 450(100+350) ,330(450+(-120)) , 430(330+100)
not exactly. what i am saying is, in order to get the records to return in the same ordering manner every time you retrieve it is to use the ORDER BY in the query
example
SELECT col1 FROM yourtable ORDER BY col1
or
SELECT col1 FROM yourtable ORDER BY col1 DESC
if you want it to be in descending order.
Without that ORDER BY clause, the sequence of records return is not guaranteed.
As you said you have only one column in that table, you can only ORDER BY col1. And the result is not what you might want it to be. Unless you have a ID identity column in that table, than it will be a different story
example :
ID col1
1 100
2 350
3 -120
4 100
then you can order by that ID column
SELECT ID, col1 FROM yourtable ORDER BY ID
KH
Time is always against us
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Shadab Shah
Starting Member
India
23 Posts |
Posted - 07/19/2012 : 06:12:56
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| I may still be not able to get you but over here i want addition of previous rows and i don't see any interlink between them |
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Topic |
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Addition Of previous two rows into new row
