Dynamic SQL query with Columns

Trying to run this code not sure why i am getting an error

Declare @sql nvarchar(4000), @Table varchar(25), @BatchNo varchar(25)
, @BatchCol varchar(25),@IDColumn varchar(25), @Max int, @Loopcount int
,@returnValue int, @Statement nvarchar(4000)

set @Statement = N'
SELECT @result = Count(1) 
from [CKOLTP_Staging].dbo.[@TableValue] tbl (nolock)
where tbl.[@BatchColValue] = Convert(varchar(10),@BatchNoValue)'
exec sp_executesql @Statement, 
    N'@TableValue varchar(25)
	,@BatchColValue varchar(25) 
	,@BatchNoValue varchar(25)
	,@result INT OUTPUT', 
    @TableValue = @Table
	,@BatchColValue = @BatchCol
	,@BatchNoValue = @BatchNo 
	,@result=@returnValue OUTPUT    

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Error
Msg 208, Level 16, State 1, Line 5
Invalid object name 'CKOLTP_Staging.dbo.@TableValue'.

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Can we not have the column as a variable?
LVL 8
Leo TorresSQL DeveloperAsked:
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Brian CroweDatabase AdministratorCommented:
set @Statement = N'
SELECT @result = Count(1)
from [CKOLTP_Staging].dbo.[' + @TableValue + '] tbl (nolock)
where tbl.[' + @BatchColValue + '] = Convert(varchar(10),' + @BatchNoValue + ')'
Scott PletcherSenior DBACommented:
No.  No part of any object name in SQL can be a variable.

You need to do replaces in the statement before executing it:


set @Statement_template = N'
SELECT @result = Count(1)
from [CKOLTP_Staging].dbo.[@TableValue] tbl (nolock)
where tbl.[@BatchColValue] = Convert(varchar(10),@BatchNoValue)'

set @statement = replace(replace(@statement_template,
    '@TableValue', @TableValue),
    '@BatchColValue', @BatchColValue)

exec sp_executesql @Statement,
    N',@BatchNoValue varchar(25)
      ,@result INT OUTPUT',
      ,@BatchNo
      ,@returnValue OUTPUT

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Leo TorresSQL DeveloperAuthor Commented:
Yes, I ended up doing that. I didnt know you cant do this with objects
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Query Syntax

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