I have 3 data files for the Primary filegroup of a database in SQL Server 2005. Is it possible to determine which data file a particular index resides on, or do they live in more than one datafile within the filegroup?
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I have 3 data files for the Primary filegroup of a database in SQL Server 2005. Is it possible to determine which data file a particular index resides on, or do they live in more than one datafile within the filegroup?
Objects such as tabkes and indexes are built on a filegroup, not a file. The index wiLl most likely reside in all fiLes within the file group. There are a few outlying cases where this is not true, such as if more files have been added, causing a file allocation hotspot, etc, but SQL Server uses a proportional fill algorithm for the files, and fills them evenly.
You can see for sure by running
Where 2 is the indexID of the index you are interested in.
This will show you the fileID of each page