如何在列名中添加参数？

Question

查询：

declare @Year  varchar(max) ;
SET @Year=  CAST(YEAR(GETDATE()) AS VARCHAR)
select 1 as 'apr-' + cast(@year as varchar(10))

错误：

  

Msg 102，Level 15，State 1，Line 3
  ＆＃39; +＆＃39;。

附近的语法不正确

输出如：

apr-2017
1

Answer 1

您可以使用动态SQL：

 declare @Year  varchar(max) ;
 SET @Year=  CAST(YEAR(GETDATE()) AS VARCHAR)

 declare @cmd nvarchar(max)
 select @cmd = 'select 1 as ''apr-' + cast(@year as varchar(10)) + ''''
 exec (@cmd)