Insert line into a query result (sum)

Question

I have a report that shows products that customers have ordered, along with their prices:

CompanyA    Product 7    14.99  
CompanyA    Product 3    45.95
CompanyA    Product 4    12.00
CompanyB    Product 3    45.95
CompanyC    Product 7    14.99
CompanyC    Product 3    45.95

I'd like to insert a line that sums each company's order, like this:

CompanyA    Product 7    14.99  
CompanyA    Product 3    45.95
CompanyA    Product 4    12.00
               Total:    72.94
CompanyB    Product 3    45.95
               Total:    45.95
CompanyC    Product 7    14.99
CompanyC    Product 3    45.95
               Total:    60.94

Here's some code that shows the basic structure of the query I have:

SELECT company
   , product
   , price
FROM companyMaster
ORDER BY company,
   , product,
   , price;

Does anyone know how to do this? I'm writing this in Transact-SQL (Microsoft SQL Server).

Answer 1

Thanks for everyone's feedback/help, it at least got me thinking of different approaches. I came up with something that doesn't depend on what version of SQL Server I'm using (our vendor changes versions often so I have to be as cross-compliant as possible).

This might be considered a hack (ok, it is a hack) but it works, and it gets the job done:

SELECT company
   , product
   , price
FROM companyMaster
ORDER BY company,
   , product,
   , price

UNION

SELECT company + 'Total'
   , ''
   , SUM(price)
FROM companyMaster
GROUP BY company

ORDER BY company;

This solution basically uses the UNION of two select statements. The first is exactly like the orginal, the second produces the sum line I needed. In order to correctly locate the sum line, I did a string concatenation on the company name (appending the word 'Total'), so that when I sort alphabetically on company name, the Total row will show up at the bottom of each company section.

Here's what the final report looks like (not exactly what I wanted but functionally equivalent, just not very pretty to look at:

CompanyA    Product 7    14.99  
CompanyA    Product 3    45.95
CompanyA    Product 4    12.00
CompanyA Total           72.94
CompanyB    Product 3    45.95
CompanyB Total           45.95
CompanyC    Product 7    14.99
CompanyC    Product 3    45.95
CompanyC Total           60.94

Answer 2

SELECT  company,
        product,
        SUM(price)
FROM    companyMaster
GROUP BY
        company, ROLLUP(product)