I have two instances (SQL2008R2_A and SQL2008R2_B), they have same linked server configuration to Oracle_C. I used the same query to select from Oracle_C. SQL2008R2_A returned the correct result but SQL2008R2_B get nothing.
And I tested linked server connection of both instances. They are all successfully.
Interesting…
SQL Server – Same Query, Same Linked Server, Different Result
linked-serversql server
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Best Answer
Thank you for your response. Before post this question I already double checked the settings for both linked server and TNS name file. There is nothing different between them.
Fortunately, I resolved it by just re-create the linked server at Server B. It might need to refresh some cache.
Thanks again and have a great one:)