Question

I use the following query on the SQL Server 2008 database of a 3rd party product to generate some reports.

SELECT ROUND(SUM(Price),0,1) AS SumNetPrice FROM Transactions

Eg

 SUM(Price): 1.2345678
 ROUND(SUM(Price),0,1): 1

This has worked fine until now and removed all of the decimal places. In fact curiously the result was truncated even if I didn’t specify the 3rd parameter as per the MSDN information http://msdn.microsoft.com/en-us/library/ms175003.aspx on the ROUND function.

The 3rd party company has now changed the data type of the Price column from ‘real’ to decimal(22, 7). Unfortunately this now means that I always get 7 decimal places even when I use the truncate option of the ROUND function. So now I get:

 ROUND(SUM(Price),0,1): 1.0000000

Shouldn’t the ROUND(expression,0,1) truncate the result so I don’t get any decimal places? How can I remove these decimal places from the result in the SQL query?

Answer 1

SELECT CAST(ROUND(SUM(Price),0,1) AS DECIMAL(22,0)) AS SumNetPrice FROM Transactions