标题：请教SQL语句写法

select a.区,sum(b.销售金额),sum(b.销售成本),sum(b.销售税) from jcxx a,xssj_2009 b where a.sku=b.sku and b.日期 between '2009-12-1' and '2009-12-31' group by a.区

select a.区,sum(b.销售金额),sum(b.销售成本),sum(b.销售税) from jcxx a,xssj_2010 b where a.sku=b.sku and b.日期 between '2010-1-1' and '2010-1-31' group by a.区

如上，两条语句分别查找2个结构完全相同的销售数据表（按年度制表），现在要求得到这两个月的销售总计（合并结果），如何用一条语句实现？

select a.区,sum(b.销售金额),sum(b.销售成本),sum(b.销售税) from jcxx a,xssj_2009 b where a.sku=b.sku and b.日期 between '2009-12-1' and '2009-12-31'  or b.日期 between '2010-1-1' and '2010-1-31' group by a.区

楼主需要从三个表提取数据的，二楼的代码好像不行的哦xssj_2009和xssj_2010 好像是两个表啊

试试这个：

;with am as
(
select a.区,sum(b.销售金额),sum(b.销售成本),sum(b.销售税) from jcxx a,xssj_2009 b where a.sku=b.sku and b.日期 between '2009-12-1' and '2009-12-31' group by a.区

union
select a.区,sum(b.销售金额),sum(b.销售成本),sum(b.销售税) from jcxx a,xssj_2010 b where a.sku=b.sku and b.日期 between '2010-1-1' and '2010-1-31' group by a.区
)
select a.区,sum(b.销售金额) as 销售金额,sum(b.销售成本) as 销售成本,sum(b.销售税) as 销售税  from am group by a.区

楼上的估计是对的，但我的是SQL Sever 2000，好像不支持

Select 区, sum(销售金额), Sum(销售成本), Sum(销售额) From

(select a.区 as 区, sum(b.销售金额) as 销售金额 ,sum(b.销售成本) as 销售成本, sum(b.销售税) as 销售额 from jcxx a,xssj_2009 b where a.sku=b.sku and b.日期 between '2009-12-1' and '2009-12-31' group by a.区 
UNION ALL

select a.区 as 区 ,sum(b.销售金额) as 销售金额, sum(b.销售成本) as 销售成本, sum(b.销售税) As 销售额 from jcxx a,xssj_2010 b where a.sku=b.sku and b.日期 between '2010-1-1' and '2010-1-31' group by a.区）

Group by 区

是的，用union

 

我以前是这样搞的。

Q盲！  简单的还能看看，这么复杂的俺不懂，使劲看也看不懂···  呵呵。  

多试试就可以了。

 

我的方法是，在ACCESS的设计视图里面做查询，可视化的很方便。

 

再在SQL视图里面看查询语句，复制到狐表里来，表名加个{}。