通过链接服务器查询master_files表

Question

I am on SQL2008R2, and I try to query database files remotely via linked server, but the remote one (A) mix up the id's, and different database id's got totally different filenames next to it. If I query the files locally on the target server, I got the proper file list.

--A

--remotely querying target server 
SELECT DB_NAME(a.database_id), a.* FROM [myLinkedServer].master.sys.master_files AS a WHERE DB_NAME(a.database_id) IN('db1','db2',...)

--B

--Run locally on target server
SELECT DB_NAME(a.database_id), a.* FROM master.sys.master_files AS a WHERE DB_NAME(a.database_id) IN('db1','db2',...)

Query A and B should be has the same result set.

What am I missing here?

Answer 1

As Gordon wrote DB_NAME is evaluated on the local server. I solved it to JOIN to sys.databases on the remote server, and get the name from there.

Thank you Gordon!