1.按年份分组

select to_char(exportDate，‘yyyy’)，sum(amount) from table1 group by to_char(exportDate，‘yyyy’);

年份      数量

-----------------------------

2009    68

2010    137

2008    103

2.按月份分组

select to_char(exportDate，‘yyyy-mm’)，sum(amount) from table1 group by to_char(exportDate，‘yyyy-mm’)

order by to_char(exportDate，‘yyyy-mm’);

月份           数量

-----------------------------

2008-02    20

2008-03    2

2008-04    6

2008-06    75

2009-10    23

2009-11    45

2010-08    5

2010-09    44

2010-10    88

3.按季度分组

select to_char(exportDate，‘yyyy-Q’)，sum(amount) from table1 group by to_char(exportDate，‘yyyy-Q’)

order by to_char(exportDate，‘yyyy-Q’);

季度          数量

------------------------------

2008-1    22

2008-2    81

2009-4    68

2010-3    49

2010-4    88

4.按周分组

select to_char(exportDate，‘yyyy-IW’)，sum(amount) from table1 group by to_char(exportDate，‘yyyy-IW’)

order by to_char(exportDate，‘yyyy-IW’);

周             数量

------------------------------

2008-07    20

2008-11    2

2008-16    6

2008-24    75

2009-43    23

2009-46    45

2010-31    5

2010-35    44

2010-40    88

补充：

按季度分组还有个比较笨的方法(参考网络资源)

select to_char(exportDate，‘yyyy’)，

sum(decode(to_char(exportDate，‘mm’)，‘01’，amount，‘02’，amount，‘03’，amount，0)) as 第一季，

sum(decode(to_char(exportDate，‘mm’)，‘04’，amount，‘05’，amount，‘06’，amount，0)) as 第二季，

sum(decode(to_char(exportDate，‘mm’)，‘07’，amount，‘08’，amount，‘09’，amount，0)) as 第三季，

sum(decode(to_char(exportDate，‘mm’)，‘10’，amount，‘11’，amount，‘12’，amount，0)) as 第四季

from table1

group by to_char(exportDate，‘yyyy’);

年份        第一季     第二季     第三季     第四季

--------------------------------------------------

2009         0            0            0          68

2010         0            0            49        88

2008         22          81           0          0

按照月份统计

select count(id) cnt,datepart(mm,time) [Month]

from [table]

where [time] between '2007/09/08 09:10:43' and '2007/10/09 04:32:37'

group by datepart(mm,time)

--按照日统计

select count(id) cnt,datepart(dd,time) [Day]

from [table]

where time between '2007/09/08 09:10:43' and '2007/10/09 04:32:37'

group by datepart(dd,time)

--按照小时统计

select count(id) cnt,datepart(hh,time) [Hour]

from [table]

where [time] between '2007/09/08 09:10:43' and '2007/10/09 04:32:37'

group by datepart(hh,time)