How to Fix 'Incorrect syntax near ' '' Errors in OPENROWSET Queries with Variables?

Troubleshooting OPENROWSET Queries with Variables

When using the OPENROWSET function to access external data, you may encounter errors if you include variable expressions within the query string. One such example is the error "Incorrect syntax near ' '." This occurs when you try to concatenate a variable with the OPENROWSET statement, as seen in the following query:

SELECT * 
FROM OPENROWSET(
    'SQLNCLI',
    'DRIVER={SQL Server};',
    'EXEC dbo.sProc1 @ID = ' + @id 
 )

In this query, the variable @id is being appended to the EXEC statement using the ' ' operator. However, OPENROWSET does not support the use of expressions in its query string.

Solution:

To resolve this issue, you cannot directly use variables in the OPENROWSET query. Instead, you can create dynamic SQL to pass the parameters. Here's an example:

Declare @ID int
Declare @sql nvarchar(max)
Set @ID=1
Set @sql='SELECT * 
FROM OPENROWSET(
               ''SQLNCLI'',
               ''DRIVER={SQL Server};'',
               ''EXEC dbo.usp_SO @ID =' + convert(varchar(10),@ID) + ''')'

-- Print @sql
 Exec(@sql)

In this solution, we define a variable @sql to hold the dynamic SQL query and concatenate the variable @ID using the CONVERT() function. This allows us to execute the dynamic SQL statement with the desired parameter.

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