如何在执行存储过程时使用参数变量？

Question

我已经声明并设置了一些变量.然后我想在执行存储过程时使用该变量值作为参数.但我总是得到错误

必须声明标量变量.

这是我的变量:

--declare variables for parameter @listweek
declare @tgl_other varchar(50);

--set variables for parameter @listweekset 
set @tgl_other = (select top 1 ltrim(rtrim(cast(numweek as char)))+'-('+rangeweek+')' from tbl_weeklyflash where year(dates) = year(getdate()) order by numweek desc);

--the variable values should be like this 30-(01-03-2012 - 08-03-2012) 
--and this value that I want to use as parameter value in executing stored procedure

这是执行存储过程:

insert into my_table (field1, field2, field3)
EXEC my_store_procedure @tgl_other
-- the parameter for my_store_procedure is like '30-(01-03-2012 - 08-03-2012)'

这是我的变量不正确吗？或者我错误地使用变量参数？

更新:

如果我执行此查询:

declare @tgl_other varchar(50);
set @tgl_other = (select top 1 ltrim(rtrim(cast(numweek as char)))+'-('+rangeweek+')' from tbl_weeklyflash where year(dates) = year(getdate()) order by numweek desc);
EXEC my_store_procedure @tgl_other

它工作正常,但如果我添加INSERT INTO..语句它将无法正常工作.为什么会这样？

更新II:这是我尝试运行的整个查询

declare @tgl_other varchar(50);
set @tgl_other = (select top 1 ltrim(rtrim(cast(numweek as char)))+'-('+rangeweek+')' from tbl_weeklyflash where year(dates) = year(getdate()) order by numweek desc);
TRUNCATE TABLE mytable
GO
INSERT INTO mytable (field1, field2)    
EXEC my_store_procedure @tgl_other
GO

Answer 1

您是否GO在声明变量和执行存储过程的调用之间有某处？变量只在其范围内可见 - 当你在那里有一个GO时,它会终止前一个批次/范围并开始一个新的 - 并且在那个新的变量中,变量不再可见/声明了.

所以试试这个:

declare @tgl_other varchar(50);

set @tgl_other = (select top 1 ltrim(rtrim(cast(numweek as char)))+'-('+rangeweek+')' from tbl_weeklyflash where year(dates) = year(getdate()) order by numweek desc);

TRUNCATE TABLE mytable

-- GO     remove this GO to make it work!

INSERT INTO mytable (field1, field2)    
EXEC my_store_procedure @tgl_other
GO