视图中的数据如下:<table border=1 width=500>
<tr>
<td>商品名称</td>
<td>型号</td>
<td>参数1</td>
<td>参数2</td>
<td>库存</td>
<td>颜色</td>
<td>级别</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>500</td>
<td>510</td>
<td>2</td>
<td>红</td>
<td>1</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>515</td>
<td>530</td>
<td>4</td>
<td>黄</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>540</td>
<td>560</td>
<td>4</td>
<td>红</td>
<td>2</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>570</td>
<td>585</td>
<td>4</td>
<td>蓝</td>
<td>6</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>589</td>
<td>600</td>
<td>3</td>
<td>黑</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>620</td>
<td>670</td>
<td>5</td>
<td>黄</td>
<td>5</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>680</td>
<td>710</td>
<td>7</td>
<td>红</td>
<td>4</td>
</tr>
<tr>
<td>手机</td>
<td>D</td>
<td>720</td>
<td>750</td>
<td>6</td>
<td>黑</td>
<td>7</td>
</tr>
<tr>
<td>电脑</td>
<td>A</td>
<td>111</td>
<td>119</td>
<td>1</td>
<td>黑</td>
<td>4</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>120</td>
<td>322</td>
<td>2</td>
<td>黑</td>
<td>5</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>330</td>
<td>340</td>
<td>4</td>
<td>黑</td>
<td>3</td>
</tr>
</table>想通过一SQL语句达到如下效果,SQL本版是2000。
<table border=1 width=700>
<tr>
<td>商品名称</td>
<td>型号</td>
<td>参数1最小值</td>
<td>参数最大值</td>
<td>种类</td>
<td>库存</td>
<td>颜色</td>
<td>级别最小值</td>
<td>级别最大值</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>500</td>
<td>530</td>
<td>2</td>
<td>6</td>
<td>红,黄</td>
<td>1</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>540</td>
<td>600</td>
<td>3</td>
<td>11</td>
<td>红,蓝,黑</td>
<td>2</td>
<td>6</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>620</td>
<td>710</td>
<td>2</td>
<td>12</td>
<td>黄,红</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td>手机</td>
<td>D</td>
<td>720</td>
<td>750</td>
<td>1</td>
<td>6</td>
<td>黑</td>
<td>7</td>
<td>7</td>
</tr>
<tr>
<td>电脑</td>
<td>A</td>
<td>111</td>
<td>119</td>
<td>1</td>
<td>1</td>
<td>黑</td>
<td>4</td>
<td>4</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>120</td>
<td>322</td>
<td>2</td>
<td>6</td>
<td>黑</td>
<td>3</td>
<td>5</td>
</tr>
</table>
<tr>
<td>商品名称</td>
<td>型号</td>
<td>参数1</td>
<td>参数2</td>
<td>库存</td>
<td>颜色</td>
<td>级别</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>500</td>
<td>510</td>
<td>2</td>
<td>红</td>
<td>1</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>515</td>
<td>530</td>
<td>4</td>
<td>黄</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>540</td>
<td>560</td>
<td>4</td>
<td>红</td>
<td>2</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>570</td>
<td>585</td>
<td>4</td>
<td>蓝</td>
<td>6</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>589</td>
<td>600</td>
<td>3</td>
<td>黑</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>620</td>
<td>670</td>
<td>5</td>
<td>黄</td>
<td>5</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>680</td>
<td>710</td>
<td>7</td>
<td>红</td>
<td>4</td>
</tr>
<tr>
<td>手机</td>
<td>D</td>
<td>720</td>
<td>750</td>
<td>6</td>
<td>黑</td>
<td>7</td>
</tr>
<tr>
<td>电脑</td>
<td>A</td>
<td>111</td>
<td>119</td>
<td>1</td>
<td>黑</td>
<td>4</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>120</td>
<td>322</td>
<td>2</td>
<td>黑</td>
<td>5</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>330</td>
<td>340</td>
<td>4</td>
<td>黑</td>
<td>3</td>
</tr>
</table>想通过一SQL语句达到如下效果,SQL本版是2000。
<table border=1 width=700>
<tr>
<td>商品名称</td>
<td>型号</td>
<td>参数1最小值</td>
<td>参数最大值</td>
<td>种类</td>
<td>库存</td>
<td>颜色</td>
<td>级别最小值</td>
<td>级别最大值</td>
</tr>
<tr>
<td>手机</td>
<td>A</td>
<td>500</td>
<td>530</td>
<td>2</td>
<td>6</td>
<td>红,黄</td>
<td>1</td>
<td>3</td>
</tr>
<tr>
<td>手机</td>
<td>B</td>
<td>540</td>
<td>600</td>
<td>3</td>
<td>11</td>
<td>红,蓝,黑</td>
<td>2</td>
<td>6</td>
</tr>
<tr>
<td>手机</td>
<td>C</td>
<td>620</td>
<td>710</td>
<td>2</td>
<td>12</td>
<td>黄,红</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td>手机</td>
<td>D</td>
<td>720</td>
<td>750</td>
<td>1</td>
<td>6</td>
<td>黑</td>
<td>7</td>
<td>7</td>
</tr>
<tr>
<td>电脑</td>
<td>A</td>
<td>111</td>
<td>119</td>
<td>1</td>
<td>1</td>
<td>黑</td>
<td>4</td>
<td>4</td>
</tr>
<tr>
<td>电脑</td>
<td>B</td>
<td>120</td>
<td>322</td>
<td>2</td>
<td>6</td>
<td>黑</td>
<td>3</td>
<td>5</td>
</tr>
</table>
declare @t table (商品名称 varchar(4),型号 varchar(1),参数1 int,
参数2 int,库存 int,颜色 varchar(2),级别 int)
insert into @t
select '手机','A',500,510,2,'红',1 union all
select '手机','A',515,530,4,'黄',3 union all
select '手机','B',540,560,4,'红',2 union all
select '手机','B',570,585,4,'蓝',6 union all
select '手机','B',589,600,3,'黑',3 union all
select '手机','C',620,670,5,'黄',5 union all
select '手机','C',680,710,7,'红',4 union all
select '手机','D',720,750,6,'黑',7 union all
select '电脑','A',111,119,1,'黑',4 union all
select '电脑','B',120,322,2,'黑',5 union all
select '电脑','B',330,340,4,'黑',3select 商品名称, 型号,
min(参数1) as 参数1最小值,
max(参数2) as 参数2最大值,
count(*) as 种类,
sum(库存) as 库存,
min(级别) as 级别最小值,
max(级别) as 级别最大值
from @t group by 商品名称, 型号
/*
商品名称 型号 参数1最小值 参数2最大值 种类 库存 级别最小值 级别最大值
---- ---- ----------- ----------- ----------- ----------- ----------- -----------
电脑 A 111 119 1 1 4 4
手机 A 500 530 2 6 1 3
电脑 B 120 340 2 6 3 5
手机 B 540 600 3 11 2 6
手机 C 620 710 2 12 4 5
手机 D 720 750 1 6 7 7
*/
用存储过程吧
go
create table yourtablename(商品名称 varchar(4),型号 varchar(1),参数1 int,
参数2 int,库存 int,颜色 varchar(2),级别 int)
insert into yourtablename
select '手机','A',500,510,2,'红',1 union all
select '手机','A',515,530,4,'黄',3 union all
select '手机','B',540,560,4,'红',2 union all
select '手机','B',570,585,4,'蓝',6 union all
select '手机','B',589,600,3,'黑',3 union all
select '手机','C',620,670,5,'黄',5 union all
select '手机','C',680,710,7,'红',4 union all
select '手机','D',720,750,6,'黑',7 union all
select '电脑','A',111,119,1,'黑',4 union all
select '电脑','B',120,322,2,'黑',5 union all
select '电脑','B',330,340,4,'黑',3gocreate function getcolor
(@商品名称 varchar(40),@型号 varchar(1))
returns varchar(20)
as
begin
declare @sql varchar(40);set @sql=''
select @sql=@sql+颜色+',' from yourtablename where
商品名称=@商品名称 and 型号=@型号
set @sql=substring(@sql,1,len(@sql))
return @sql
endgo
select 商品名称, 型号,
min(参数1) as 参数1最小值,
max(参数2) as 参数2最大值,
count(*) as 种类,
sum(库存) as 库存,
dbo.getcolor(商品名称, 型号) as 颜色,
min(级别) as 级别最小值,
max(级别) as 级别最大值
from yourtablename group by 商品名称, 型号
order by 商品名称 desc, 型号
/*
商品名称 型号 参数1最小值 参数2最大值 种类 库存 颜色 级别最小值 级别最大值
---- ---- ----------- ----------- ----------- ----------- -------------------- ----------- -----------
手机 A 500 530 2 6 红,黄, 1 3
手机 B 540 600 3 11 红,蓝,黑, 2 6
手机 C 620 710 2 12 黄,红, 4 5
手机 D 720 750 1 6 黑, 7 7
电脑 A 111 119 1 1 黑, 4 4
电脑 B 120 340 2 6 黑,黑, 3 5
*/
create function ys(@商品名称 varchar(10),@型号 varchar(10)) returns varchar(100)
as
begin
declare @颜色 varchar(100)
set @颜色=''
select @颜色=@颜色+颜色+',' from tb
where 商品名称=@商品名称 and 型号=@型号 and 颜色 not in (@颜色)
set @颜色=left(颜色,len(颜色)-1)
return @颜色
end
--调用自定义自定义函数
select 商品名称,型号,参数1最小值=min(参数1),参数最大值=max(参数2),
种类=count(1),库存=sum(库存),
颜色=ys(商品名称,型号)
级别最小值=min(级别),级别最小值=max(级别)
from tb
group by 商品名称,型号
order by 商品名称,型号
未测试过,不对的地方自己改一下
--*******************************************************************************************
表结构,数据如下:
id value
----- ------
1 aa
1 bb
2 aaa
2 bbb
2 ccc 需要得到结果:
id values
------ -----------
1 aa,bb
2 aaa,bbb,ccc
即:group by id, 求 value 的和(字符串相加) 1. 旧的解决方法(在sql server 2000中只能用函数解决。)
--=============================================================================
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
--1. 创建处理函数
CREATE FUNCTION dbo.f_strUnite(@id int)
RETURNS varchar(8000)
AS
BEGIN
DECLARE @str varchar(8000)
SET @str = ''
SELECT @str = @str + ',' + value FROM tb WHERE id=@id
RETURN STUFF(@str, 1, 1, '')
END
GO
-- 调用函数
SELECt id, value = dbo.f_strUnite(id) FROM tb GROUP BY id
drop table tb
drop function dbo.f_strUnite
go
/*
id value
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
(所影响的行数为 2 行)
*/
--===================================================================================
2. 新的解决方法(在sql server 2005中用OUTER APPLY等解决。)
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
-- 查询处理
SELECT * FROM(SELECT DISTINCT id FROM tb)A OUTER APPLY(
SELECT [values]= STUFF(REPLACE(REPLACE(
(
SELECT value FROM tb N
WHERE id = A.id
FOR XML AUTO
), ' <N value="', ','), '"/>', ''), 1, 1, '')
)N
drop table tb /*
id values
----------- -----------
1 aa,bb
2 aaa,bbb,ccc (2 行受影响)
*/ --SQL2005中的方法2
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go select id, [values]=stuff((select ','+[value] from tb t where id=tb.id for xml path('')), 1, 1, '')
from tb
group by id /*
id values
----------- --------------------
1 aa,bb
2 aaa,bbb,ccc (2 row(s) affected) */ drop table tb 修改一下函数就OK了