如何选择多行作为单列

在sql server，如果我有这样的一个表：如何选择多行作为单列

id | name 
------------- 
1 |  x 
2 |  y 
3 |  z

我想创建一个存储过程在一行返回的结果是这样的：

x | y | z

我的代码是：

alter PROCEDURE getSupervisorEvaluationPercentages 
(
    @FirstSupervisorNumber nvarchar(6), 
    @Year int 
) 
as 
DECLARE @Count INT 
DECLARE @OptionID INT 
DECLARE @getOptionID CURSOR 

declare @OptionCountTb table(c int) 


SET @getOptionID = CURSOR FOR 
    SELECT Id FROM ObjectiveOption 
OPEN @getOptionID 
FETCH NEXT 
    FROM @getOptionID INTO @OptionID 
    WHILE @@FETCH_STATUS = 0 
    BEGIN 
     select @Count = (select COUNT(Id) from EvaluationProcess 
      where FirstSupervisorNumber = @FirstSupervisorNumber and Year = @Year and FirstSupervisorEvaluation = @OptionID) 
     insert into @OptionCountTb values(@Count) 
     FETCH NEXT 
     FROM @getOptionID INTO @OptionID 
    END 
CLOSE @getOptionID 
DEALLOCATE @getOptionID

我想要显示的表的值作为单列

来源

2012-07-25 Adham

检查这个答案 http://stackoverflow.com/questions/2830139 /转换行到列-in-sql – 2012-07-25 09:59:57

select 
    name + ' ' 
from TableName 
for xml path('')

来源

2012-07-25 09:46:42 yogi

但我希望每个值都显示为一个单独的单元格 – Adham 2012-07-25 09:48:56

PIVOT是途径之一 http://beyondrelational.com/modules/2/blogs/70/posts/10840/dynamic-pivot-in-sql-server-2005.aspx

来源

2012-07-25 09:52:44 Madhivanan

CREATE TABLE t1(id int,name varchar(10)) 
INSERT INTO t1 
VALUES(1,'x'), 
(2,'y'), 
(3,'z') 

SELECT STUFF((select '|'+name from t1 for XML path('')),1,1,'')

来源

2012-07-25 11:05:54 AnandPhadke

尝试此解决方案：

DECLARE @cols AS NVARCHAR(MAX), 
    @query AS NVARCHAR(MAX) 

select @cols = STUFF((SELECT ',' + [name] 
        from t01 
      FOR XML PATH(''), TYPE 
      ).value('.', 'NVARCHAR(MAX)') 
     ,1,1,'') 
set @query = 'SELECT ' + @cols + ' from 
      (
       select [name] 
       from t01 
      ) x 
      pivot 
      (
       count([name]) 
       for name in (' + @cols + ') 
      ) p where 1=2 ' 
print(@query) 
execute(@query)

来源

2012-07-25 12:04:58

如何选择多行作为单列

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