if not object_id('Class') is null drop table Class Go Create table Class([Student] nvarchar(2),[数学] int,[物理] int,[英语] int,[语文] int) Insert Class select N'李四',77,85,65,65 union all select N'张三',87,90,82,78 Go--2000:动态:declare @s nvarchar(4000) select @s=isnull(@s+' union all ','')+'select [Student],[Course]='+quotename(Name,'''')--isnull(@s+' union all ','') 去掉字符串@s中第一个union all +',[Score]='+quotename(Name)+' from Class' from syscolumns where ID=object_id('Class') and Name not in('Student')--排除不转换的列 order by Colid exec('select * from ('+@s+')t order by [Student],[Course]')--增加一个排序生成静态: select * from (select [Student],[Course]='数学',[Score]=[数学] from Class union all select [Student],[Course]='物理',[Score]=[物理] from Class union all select [Student],[Course]='英语',[Score]=[英语] from Class union all select [Student],[Course]='语文',[Score]=[语文] from Class)t order by [Student],[Course]go --2005:动态:declare @s nvarchar(4000) select @s=isnull(@s+',','')+quotename(Name) from syscolumns where ID=object_id('Class') and Name not in('Student') order by Colid exec('select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in('+@s+'))b')go select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in([数学],[物理],[英语],[语文]))b生成格式: /* Student Course Score ------- ------- ----------- 李四 数学 77 李四 物理 85 李四 英语 65 李四 语文 65 张三 数学 87 张三 物理 90 张三 英语 82 张三 语文 78(8 行受影响) */
/* ************************************* * T-MAC 小编 * * -->努力成长中 * * -->梦想DBA * ************************************* */ if OBJECT_ID('tb') is not null drop table tb go create table tb (姓名 varchar(10), [01年成绩] int,[02年成绩] int,[03年成绩] int,[04年成绩] int) insert tb select '张三', 98, 78, 68, 88 union select '李四', 86, 56, 99, 78 go declare @Ss VARCHAR(8000),@s1 varchar(2000),@s2 varchar(2000),@s3 varchar(2000),@s4 varchar(2000) SELECT @S1=isnull(@S1+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb SELECT @S2=isnull(@S2+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb SELECT @S3=isnull(@S3+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb SELECT @S4=isnull(@S4+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb set @Ss='SELECT [01年成绩]=''01年成绩'','+@s1+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+ 'SELECT [02年成绩]=''02年成绩'','+@s2+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+ 'SELECT [03年成绩]=''03年成绩'','+@s3+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+ 'SELECT [04年成绩]=''04年成绩'','+@s4+' from tb' +char(10)+char(13) exec(@ss) /* 01年成绩 张三 李四 -------- ----------- ----------- 01年成绩 98 86 02年成绩 98 86 03年成绩 98 86 04年成绩 98 86*/
create table tab ([name] varchar(20), [01score] int, [02score] int, [03score] int, [04score] int); insert into tab select '张三',98,78,68,88 union all select '李四',86,56,99,78;declare @clist varchar(2000); set @clist = stuff((select distinct ','+quotename([name]) from tab for xml path('')),1,1,'');declare @sql varchar(max); set @sql = ';with t1 as (select [name],[year],[score] from TAB unpivot ([score] for [year] in ([01score],[02score],[03score],[04score])) upvt) select * from t1 pivot (max([score]) for [name] in ('+@clist+')) pvt;'exec(@sql); /* year 李四 张三 01score 86 98 02score 56 78 03score 99 68 04score 78 88 */
if not object_id('Class') is null drop table Class Go Create table Class([Student] nvarchar(2),[Course] nvarchar(2),[Score] int) Insert Class select N'张三',N'语文',78 union all select N'张三',N'数学',87 union all select N'张三',N'英语',82 union all select N'张三',N'物理',90 union all select N'李四',N'语文',65 union all select N'李四',N'数学',77 union all select N'李四',N'英语',65 union all select N'李四',N'物理',85 Go --2000方法: 动态:declare @s nvarchar(4000) set @s='' Select @s=@s+','+quotename([Course])+'=max(case when [Course]='+quotename([Course],'''')+' then [Score] else 0 end)' from Class group by[Course] exec('select [Student]'+@s+' from Class group by [Student]') 生成静态:select [Student], [数学]=max(case when [Course]='数学' then [Score] else 0 end), [物理]=max(case when [Course]='物理' then [Score] else 0 end), [英语]=max(case when [Course]='英语' then [Score] else 0 end), [语文]=max(case when [Course]='语文' then [Score] else 0 end) from Class group by [Student]GO 动态:declare @s nvarchar(4000) Select @s=isnull(@s+',','')+quotename([Course]) from Class group by[Course] exec('select * from Class pivot (max([Score]) for [Course] in('+@s+'))b')生成静态: select * from Class pivot (max([Score]) for [Course] in([数学],[物理],[英语],[语文]))b生成格式: /* Student 数学 物理 英语 语文 ------- ----------- ----------- ----------- ----------- 李四 77 85 65 65 张三 87 90 82 78(2 行受影响) */------------------------------------------------------------------------------------------ go --加上总成绩(学科平均分)--2000方法: 动态:declare @s nvarchar(4000) set @s='' Select @s=@s+','+quotename([Course])+'=max(case when [Course]='+quotename([Course],'''')+' then [Score] else 0 end)' from Class group by[Course] exec('select [Student]'+@s+',[总成绩]=sum([Score]) from Class group by [Student]')--加多一列(学科平均分用avg([Score]))生成动态:select [Student], [数学]=max(case when [Course]='数学' then [Score] else 0 end), [物理]=max(case when [Course]='物理' then [Score] else 0 end), [英语]=max(case when [Course]='英语' then [Score] else 0 end), [语文]=max(case when [Course]='语文' then [Score] else 0 end), [总成绩]=sum([Score]) --加多一列(学科平均分用avg([Score])) from Class group by [Student]go--2005方法:动态:declare @s nvarchar(4000) Select @s=isnull(@s+',','')+quotename([Course]) from Class group by[Course] --isnull(@s+',','') 去掉字符串@s中第一个逗号 exec('select [Student],'+@s+',[总成绩] from (select *,[总成绩]=sum([Score])over(partition by [Student]) from Class) a pivot (max([Score]) for [Course] in('+@s+'))b ')生成静态:select [Student],[数学],[物理],[英语],[语文],[总成绩] from (select *,[总成绩]=sum([Score])over(partition by [Student]) from Class) a --平均分时用avg([Score]) pivot (max([Score]) for [Course] in([数学],[物理],[英语],[语文]))b 生成格式:/* Student 数学 物理 英语 语文 总成绩 ------- ----------- ----------- ----------- ----------- ----------- 李四 77 85 65 65 292 张三 87 90 82 78 337(2 行受影响) */go--2、列转行 --> --> (Roy)生成測試數據
if not object_id('Class') is null drop table Class Go Create table Class([Student] nvarchar(2),[数学] int,[物理] int,[英语] int,[语文] int) Insert Class select N'李四',77,85,65,65 union all select N'张三',87,90,82,78 Go--2000:动态:declare @s nvarchar(4000) select @s=isnull(@s+' union all ','')+'select [Student],[Course]='+quotename(Name,'''')--isnull(@s+' union all ','') 去掉字符串@s中第一个union all +',[Score]='+quotename(Name)+' from Class' from syscolumns where ID=object_id('Class') and Name not in('Student')--排除不转换的列 order by Colid exec('select * from ('+@s+')t order by [Student],[Course]')--增加一个排序生成静态: select * from (select [Student],[Course]='数学',[Score]=[数学] from Class union all select [Student],[Course]='物理',[Score]=[物理] from Class union all select [Student],[Course]='英语',[Score]=[英语] from Class union all select [Student],[Course]='语文',[Score]=[语文] from Class)t order by [Student],[Course]go --2005:动态:declare @s nvarchar(4000) select @s=isnull(@s+',','')+quotename(Name) from syscolumns where ID=object_id('Class') and Name not in('Student') order by Colid exec('select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in('+@s+'))b')go select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in([数学],[物理],[英语],[语文]))b生成格式: /* Student Course Score ------- ------- ----------- 李四 数学 77 李四 物理 85 李四 英语 65 李四 语文 65 张三 数学 87 张三 物理 90 张三 英语 82 张三 语文 78(8 行受影响) */
--> --> (Roy)生成測試數據
if not object_id('Class') is null
drop table Class
Go
Create table Class([Student] nvarchar(2),[数学] int,[物理] int,[英语] int,[语文] int)
Insert Class
select N'李四',77,85,65,65 union all
select N'张三',87,90,82,78
Go--2000:动态:declare @s nvarchar(4000)
select @s=isnull(@s+' union all ','')+'select [Student],[Course]='+quotename(Name,'''')--isnull(@s+' union all ','') 去掉字符串@s中第一个union all
+',[Score]='+quotename(Name)+' from Class'
from syscolumns where ID=object_id('Class') and Name not in('Student')--排除不转换的列
order by Colid
exec('select * from ('+@s+')t order by [Student],[Course]')--增加一个排序生成静态:
select *
from (select [Student],[Course]='数学',[Score]=[数学] from Class union all
select [Student],[Course]='物理',[Score]=[物理] from Class union all
select [Student],[Course]='英语',[Score]=[英语] from Class union all
select [Student],[Course]='语文',[Score]=[语文] from Class)t
order by [Student],[Course]go
--2005:动态:declare @s nvarchar(4000)
select @s=isnull(@s+',','')+quotename(Name)
from syscolumns where ID=object_id('Class') and Name not in('Student')
order by Colid
exec('select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in('+@s+'))b')go
select
Student,[Course],[Score]
from
Class
unpivot
([Score] for [Course] in([数学],[物理],[英语],[语文]))b生成格式:
/*
Student Course Score
------- ------- -----------
李四 数学 77
李四 物理 85
李四 英语 65
李四 语文 65
张三 数学 87
张三 物理 90
张三 英语 82
张三 语文 78(8 行受影响)
*/
*************************************
* T-MAC 小编 *
* -->努力成长中 *
* -->梦想DBA *
*************************************
*/
if OBJECT_ID('tb') is not null
drop table tb
go
create table tb (姓名 varchar(10), [01年成绩] int,[02年成绩] int,[03年成绩] int,[04年成绩] int)
insert tb select
'张三', 98, 78, 68, 88 union select
'李四', 86, 56, 99, 78
go
declare @Ss VARCHAR(8000),@s1 varchar(2000),@s2 varchar(2000),@s3 varchar(2000),@s4 varchar(2000)
SELECT @S1=isnull(@S1+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb
SELECT @S2=isnull(@S2+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb
SELECT @S3=isnull(@S3+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb
SELECT @S4=isnull(@S4+',','')+'MAX(CASE WHEN 姓名='''+姓名+''' then [01年成绩] end) as '+姓名 from tb
set @Ss='SELECT [01年成绩]=''01年成绩'','+@s1+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+
'SELECT [02年成绩]=''02年成绩'','+@s2+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+
'SELECT [03年成绩]=''03年成绩'','+@s3+' from tb' +char(10)+char(13)+'union all'+char(10)+char(13)+
'SELECT [04年成绩]=''04年成绩'','+@s4+' from tb' +char(10)+char(13)
exec(@ss)
/*
01年成绩 张三 李四
-------- ----------- -----------
01年成绩 98 86
02年成绩 98 86
03年成绩 98 86
04年成绩 98 86*/
create table tab
([name] varchar(20), [01score] int, [02score] int, [03score] int, [04score] int);
insert into tab
select '张三',98,78,68,88 union all
select '李四',86,56,99,78;declare @clist varchar(2000);
set @clist = stuff((select distinct ','+quotename([name]) from tab for xml path('')),1,1,'');declare @sql varchar(max);
set @sql =
';with t1 as
(select [name],[year],[score] from TAB
unpivot ([score] for [year] in ([01score],[02score],[03score],[04score])) upvt)
select * from t1 pivot (max([score]) for [name] in ('+@clist+')) pvt;'exec(@sql);
/*
year 李四 张三
01score 86 98
02score 56 78
03score 99 68
04score 78 88
*/
/******************************************************************************************************************************************************
以学生成绩为例子,比较形象易懂整理人:中国风(Roy)日期:2008.06.06
******************************************************************************************************************************************************/--1、行互列
--> --> (Roy)生成測試數據
if not object_id('Class') is null
drop table Class
Go
Create table Class([Student] nvarchar(2),[Course] nvarchar(2),[Score] int)
Insert Class
select N'张三',N'语文',78 union all
select N'张三',N'数学',87 union all
select N'张三',N'英语',82 union all
select N'张三',N'物理',90 union all
select N'李四',N'语文',65 union all
select N'李四',N'数学',77 union all
select N'李四',N'英语',65 union all
select N'李四',N'物理',85
Go
--2000方法:
动态:declare @s nvarchar(4000)
set @s=''
Select @s=@s+','+quotename([Course])+'=max(case when [Course]='+quotename([Course],'''')+' then [Score] else 0 end)'
from Class group by[Course]
exec('select [Student]'+@s+' from Class group by [Student]')
生成静态:select
[Student],
[数学]=max(case when [Course]='数学' then [Score] else 0 end),
[物理]=max(case when [Course]='物理' then [Score] else 0 end),
[英语]=max(case when [Course]='英语' then [Score] else 0 end),
[语文]=max(case when [Course]='语文' then [Score] else 0 end)
from
Class
group by [Student]GO
动态:declare @s nvarchar(4000)
Select @s=isnull(@s+',','')+quotename([Course]) from Class group by[Course]
exec('select * from Class pivot (max([Score]) for [Course] in('+@s+'))b')生成静态:
select *
from
Class
pivot
(max([Score]) for [Course] in([数学],[物理],[英语],[语文]))b生成格式:
/*
Student 数学 物理 英语 语文
------- ----------- ----------- ----------- -----------
李四 77 85 65 65
张三 87 90 82 78(2 行受影响)
*/------------------------------------------------------------------------------------------
go
--加上总成绩(学科平均分)--2000方法:
动态:declare @s nvarchar(4000)
set @s=''
Select @s=@s+','+quotename([Course])+'=max(case when [Course]='+quotename([Course],'''')+' then [Score] else 0 end)'
from Class group by[Course]
exec('select [Student]'+@s+',[总成绩]=sum([Score]) from Class group by [Student]')--加多一列(学科平均分用avg([Score]))生成动态:select
[Student],
[数学]=max(case when [Course]='数学' then [Score] else 0 end),
[物理]=max(case when [Course]='物理' then [Score] else 0 end),
[英语]=max(case when [Course]='英语' then [Score] else 0 end),
[语文]=max(case when [Course]='语文' then [Score] else 0 end),
[总成绩]=sum([Score]) --加多一列(学科平均分用avg([Score]))
from
Class
group by [Student]go--2005方法:动态:declare @s nvarchar(4000)
Select @s=isnull(@s+',','')+quotename([Course]) from Class group by[Course] --isnull(@s+',','') 去掉字符串@s中第一个逗号
exec('select [Student],'+@s+',[总成绩] from (select *,[总成绩]=sum([Score])over(partition by [Student]) from Class) a
pivot (max([Score]) for [Course] in('+@s+'))b ')生成静态:select
[Student],[数学],[物理],[英语],[语文],[总成绩]
from
(select *,[总成绩]=sum([Score])over(partition by [Student]) from Class) a --平均分时用avg([Score])
pivot
(max([Score]) for [Course] in([数学],[物理],[英语],[语文]))b 生成格式:/*
Student 数学 物理 英语 语文 总成绩
------- ----------- ----------- ----------- ----------- -----------
李四 77 85 65 65 292
张三 87 90 82 78 337(2 行受影响)
*/go--2、列转行
--> --> (Roy)生成測試數據
if not object_id('Class') is null
drop table Class
Go
Create table Class([Student] nvarchar(2),[数学] int,[物理] int,[英语] int,[语文] int)
Insert Class
select N'李四',77,85,65,65 union all
select N'张三',87,90,82,78
Go--2000:动态:declare @s nvarchar(4000)
select @s=isnull(@s+' union all ','')+'select [Student],[Course]='+quotename(Name,'''')--isnull(@s+' union all ','') 去掉字符串@s中第一个union all
+',[Score]='+quotename(Name)+' from Class'
from syscolumns where ID=object_id('Class') and Name not in('Student')--排除不转换的列
order by Colid
exec('select * from ('+@s+')t order by [Student],[Course]')--增加一个排序生成静态:
select *
from (select [Student],[Course]='数学',[Score]=[数学] from Class union all
select [Student],[Course]='物理',[Score]=[物理] from Class union all
select [Student],[Course]='英语',[Score]=[英语] from Class union all
select [Student],[Course]='语文',[Score]=[语文] from Class)t
order by [Student],[Course]go
--2005:动态:declare @s nvarchar(4000)
select @s=isnull(@s+',','')+quotename(Name)
from syscolumns where ID=object_id('Class') and Name not in('Student')
order by Colid
exec('select Student,[Course],[Score] from Class unpivot ([Score] for [Course] in('+@s+'))b')go
select
Student,[Course],[Score]
from
Class
unpivot
([Score] for [Course] in([数学],[物理],[英语],[语文]))b生成格式:
/*
Student Course Score
------- ------- -----------
李四 数学 77
李四 物理 85
李四 英语 65
李四 语文 65
张三 数学 87
张三 物理 90
张三 英语 82
张三 语文 78(8 行受影响)
*/