sql server 按年、季度、月份、周统计订单销量

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--按周统计
SELECT TOP 10 
 DATENAME(year,AddDate) 年,
 DATENAME(week,AddDate) 周,
 COUNT(1) 单量,
 SUM(total) 总金额,
 AVG(total) 客单价
FROM orderinfo t(NOLOCK) 
WHERE AddDate BETWEEN ‘2013-1-1‘ AND ‘2014-1-1‘
GROUP BY DATENAME(year,AddDate),DATENAME(week,AddDate)
ORDER BY CONVERT(INT,DATENAME(week,AddDate));


----------------------------------------------------------------
--按月统计
SELECT TOP 10 
 DATENAME(year,AddDate) 年,
 DATENAME(month,AddDate) 月,
 COUNT(1) 单量,
 SUM(total) 总金额,
 AVG(total) 客单价
FROM orderinfo t(NOLOCK) 
WHERE AddDate BETWEEN ‘2013-1-1‘ AND ‘2014-1-1‘
GROUP BY DATENAME(year,AddDate),DATENAME(month,AddDate)
ORDER BY CONVERT(INT,DATENAME(month,AddDate));


----------------------------------------------------------------
--按季度统计
SELECT TOP 10 
 DATENAME(year,AddDate) 年,
 DATENAME(quarter,AddDate) 季度,
 COUNT(1) 单量,
 SUM(total) 总金额,
 AVG(total) 客单价
FROM orderinfo t(NOLOCK) 
WHERE AddDate BETWEEN ‘2013-1-1‘ AND ‘2014-1-1‘
GROUP BY DATENAME(year,AddDate),DATENAME(quarter,AddDate)
ORDER BY CONVERT(INT,DATENAME(quarter,AddDate));


----------------------------------------------------------------
--按年统计
SELECT TOP 10 
 DATENAME(year,AddDate) 年,
 COUNT(1) 单量,
 SUM(total) 总金额,
 AVG(total) 客单价
FROM orderinfo t(NOLOCK) 
WHERE AddDate BETWEEN ‘2012-1-1‘ AND ‘2014-1-1‘
GROUP BY DATENAME(year,AddDate)
ORDER BY CONVERT(INT,DATENAME(year,AddDate));

原文：http://blog.csdn.net/xxj_jing/article/details/18258357