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title: "FILE_NAME (Transact-SQL) | Microsoft Docs"
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  - "logical file names [SQL Server]"
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---
# FILE_NAME (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2008-xxxx-xxxx-xxx_md](../../includes/tsql-appliesto-ss2008-xxxx-xxxx-xxx-md.md)]

  Returns the logical file name for the given file identification (ID) number.  
  
 ![Topic link icon](../../database-engine/configure-windows/media/topic-link.gif "Topic link icon") [Transact-SQL Syntax Conventions](../../t-sql/language-elements/transact-sql-syntax-conventions-transact-sql.md)  
  
## 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 [!INCLUDE[ssSampleDBnormal](../../includes/sssampledbnormal-md.md)] database.  
  
```tsql  
  
SELECT FILE_NAME(1) AS 'File Name 1', FILE_NAME(2) AS 'File Name 2';  
GO  
```  
  
 [!INCLUDE[ssResult](../../includes/ssresult-md.md)]  
  
 `File Name 1           File Name 2`  
  
 `----------------      ------------------------`  
  
 `AdventureWorks2012_Data   AdventureWorks2012_Log`  
  
 `(1 row(s) affected)`  
  
## See Also  
 [FILE_IDEX (Transact-SQL)](../../t-sql/functions/file-idex-transact-sql.md)   
 [Metadata Functions (Transact-SQL)](../../t-sql/functions/metadata-functions-transact-sql.md)   
 [sys.database_files (Transact-SQL)](../../relational-databases/system-catalog-views/sys-database-files-transact-sql.md)   
 [sys.master_files (Transact-SQL)](../../relational-databases/system-catalog-views/sys-master-files-transact-sql.md)