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Multiple Counts in one query

Posted on 2012-04-13
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Last Modified: 2012-04-13
I am relatively new to SQL and would like some help on how to do multiple counts in one query.

An example would be:

table: Sales History

EmployeeID ItemSold
0 1
2 2
2 1
0 2
1 1
2 3
2 2
0 2
2 1
1 1
0 3
1 2
1 3
2 3

How do I write a query to return how many of each item each employee sold summary?

EmployeeID Item1 Item2 Item2
0 1 2 1
1 2 1 1
2 2 2 2

I can get it to count one Item, with the following select statement,

SELECT SalesHistoy.EmpID, Count(SalesHistory.ItemSold) as Item1 From SalesHistoy WHERE SalesHistoy.ItemSold=1 GROUP BY Sales.Histoy.EmpID

but have struggled to get it to work for more items without using multiple queries.

Any advice would be greatly appreciated.
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Comment
Question by:Col-Z
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7 Comments
 
LVL 37

Expert Comment

by:momi_sabag
ID: 37843330
which database are you using?
if you are using sql server, you can use the pivot clause
0
 

Author Comment

by:Col-Z
ID: 37843419
I am using MS Access 2007
0
 
LVL 37

Expert Comment

by:momi_sabag
ID: 37843438
do you have a limited number of items?
0
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Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 

Author Comment

by:Col-Z
ID: 37843472
Yes, there is a limited number of items.
0
 
LVL 7

Accepted Solution

by:
karunamoorthy earned 345 total points
ID: 37843599
You can try this and give your remakrs pl.

TRANSFORM ItemSold
SELECT EmployeeID
FROM SalesHistoy
GROUP BY EmployeeID
PIVOT ItemSold
0
 

Author Closing Comment

by:Col-Z
ID: 37843640
Thanks!

That was exactly what I was after!
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3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

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