使用Select语句的列名 [英] To work with Column Names of a Select Statement

问题描述

Hi Friends

我现在面临一个问题，因为我想将变量的值赋予要在选择语句中选择的列名".
像
如果我有一个变量@date =''01-2012''
那么我想将此值作为我的select语句的标题
就像
选择a，b，c，
d AS @date
从表

所以我需要的是我希望@date值作为select语句的标题.

在此先谢谢您.

Hi Friends

I am facing one problem right now as " I want to give the value of a variable to the column name that i am going to select in a select statement ".
Examplly like
if i have a variable @date=''01-2012''
then i want this value as a heading to my select statement
which is like
SELECT a , b ,c,
d AS @date
from table

So what i need is that i want @date Value to come as the heading of the select statement.

Thanks in advance .

推荐答案

您可以直接将常量代替变量:

Instead of variable you can directly put the constant:

SELECT a , b ,c, d AS '01-2012' from table_name

或您需要执行动态查询:

or you need to execute the dynamic query:

declare @tdate varchar(20)
set @tdate = '01-2011'
exec('select sellerid, sellername as [' + @tdate + '] from sellers')

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