学习 T SQL (1)

基于msdn 详细学习T-SQL (http://msdn.microsoft.com/zh-cn/library/bb510741.aspx)
 Aggregate function--Sum() Two Sample from msdn
USE AdventureWorks;
GO
SELECT Color, SUM(ListPrice), SUM(StandardCost)
from Production.Product
WHERE Color IS NOT NULL
    AND ListPrice != 0.00
    AND Name LIKE 'Mountain%'
GROUP BY Color
ORDER BY Color;
GO
USE AdventureWorks;
GO
SELECT Color, ListPrice, StandardCost
from Production.Product
WHERE Color IS NOT NULL
    AND ListPrice != 0.00
    AND Name LIKE 'Mountain%'
ORDER BY Color
COMPUTE SUM(ListPrice), SUM(StandardCost) BY Color;
GO