subtract values from same column

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subtract values from same column

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eschwartz
Starting Member

2 Posts

Posted - 2015-02-24 : 13:08:29

I have a single table listing products, company, sales and quarter and need to subtract sales values of one product from another product for each company per quarter. For example: company aaaa = product B sales - product A sales in q1. Any suggestions?

product company sales quarter
A aaaa 1234 q1
A cccc 1235 q1
B aaaa 8234 q1
B cccc 8235 q1
A aaaa 4567 q2
A cccc 4568 q2
B aaaa 3567 q2
B cccc 3568 q2

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2015-02-24 : 14:11:51

I'm not sure understanding what you want. Given your sample data, what is the expected output?

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/

eschwartz
Starting Member

2 Posts

Posted - 2015-02-24 : 14:36:10

basically, i need a query that checks if a company sold product B in a quarter, and then subtracts the sales number for product b from the sales number for product a in the same quarter

the output would look like..
product company sales quarter
(a - b) aaaa (1234 - 8234) q1

i realize the example data will have a negative number, but thats ok as long as the query works. i can fix any negative numbers later.

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