file-name-transact-sql.md

title	FILE_NAME (Transact-SQL) | Microsoft Docs
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ms.date	03/03/2017
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f1_keywords	FILE_NAME_TSQL FILE_NAME
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helpviewer_keywords	viewing file names file names [SQL Server], FILE_NAME IDs [SQL Server], files file IDs [SQL Server] names [SQL Server], files displaying file names identification numbers [SQL Server], files FILE_NAME function logical file names [SQL Server]
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FILE_NAME (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-xxxx-xxxx-xxx-md]

Returns the logical file name for the given file identification (ID) number.

Transact-SQL Syntax Conventions

Syntax

FILE_NAME ( file_id )   

Arguments

file_id
Is the file identification number for which to return the file name. file_id is int.

Return Types

nvarchar(128)

Remarks

file_ID corresponds to the file_id column in the sys.master_files or sys.database_files catalog views.

Examples

The following example returns the file names for file_ID 1 and file_ID in the [!INCLUDEssSampleDBnormal] database.

SELECT FILE_NAME(1) AS 'File Name 1', FILE_NAME(2) AS 'File Name 2';  
GO  

[!INCLUDEssResult]

File Name 1           File Name 2  
----------------      ------------------------  
AdventureWorks2012_Data   AdventureWorks2012_Log  

(1 row(s) affected)

See Also

FILE_IDEX (Transact-SQL)
Metadata Functions (Transact-SQL)
sys.database_files (Transact-SQL)
sys.master_files (Transact-SQL)