Hi @Amy Jandreau ,
The OFFSET FETCH functionality is available only starting from SQL 2012 onwards.
Since your SQL Server is 2008R2, it is not available.
You can easily switch your SQL Statement as follows:
SELECT TOP(10000) *
FROM [dbo].[Transactions]
ORDER BY [Transaction_Key];
UPDATE
For pagination you can try the following T-SQL statement:
SELECT * FROM
(
SELECT *
, Seq = ROW_NUMBER() OVER (ORDER BY Transaction_Key)
FROM [dbo].[Transactions]
ORDER BY [Transaction_Key]
) AS t
WHERE Seq BETWEEN 101 AND 200;