CODEWITHSUNDEEP
sqlsql-servert-sql
Ethan
Ethan

Reputation:

SQL Selecting multiple sums?

Let's say I have a table:

SELECT  SUM(quantity) AS items_sold_since_date,
        product_ID
FROM    Sales
WHERE order_date >= '01/01/09'
GROUP BY product_ID

This returns a list of products with the quantity sold since a particular date. Is there a way to select not only this sum, but ALSO the sum WITHOUT the where condition? I'd like to see sales since a particular date for each product alongside all (not date limited) sales.

Upvotes: 13

Views: 35386

Answers (5)

Sadegh
Sadegh

Reputation: 6854

you can write

SELECT  SUM(quantity) AS items_sold_since_date,(SELECT  SUM(quantity) AS items_sold_since_date FROM    Sales
GROUP BY product_ID) as items_sold,
        product_ID
FROM    Sales
WHERE order_date >= '01/01/09'
GROUP BY product_ID

Upvotes: 0

gabor
gabor

Reputation: 1030

You could use GROUP BY to split up the Sales based on date. In Oracle you could say:

select count(*)
      ,case when order_date >= '01/01/09' then 'after' else 'before' end
from   log 
group by case when order_date >= '01/01/09' then 'after' else 'before' end;

Upvotes: 0

Nore
Nore

Reputation:

If you like to see total sales alongside, then you would use sum(sale_amt), and in the group by add the sale_amt. I hope it helps.

Upvotes: 0

Joel Coehoorn
Joel Coehoorn

Reputation: 415765

SELECT  SUM(CASE WHEN order_date >= '01/01/09' THEN quantity ELSE 0 END) AS items_sold_since_date,
        SUM(quantity) AS items_sold_total,
        product_ID
FROM    Sales
GROUP BY product_ID

Upvotes: 33

rein
rein

Reputation: 33445

something like this?:

SELECT  SUM(quantity) AS items_sold_since_date,
        total_items_sold = (SELECT SUM(quantity) from Sales GROUP BY product_ID),
        product_ID
FROM    Sales
WHERE order_date >= '01/01/09'
GROUP BY product_ID

Upvotes: 0

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