How to use filename in sql

The FILENAME function returns the full path and name of the file system. It can be used with the following syntax: SELECT FILENAME(<file_name>). This function allows you to access data stored in the file system by specifying the file path in OPEN and EXECUTE statements.

How to use FILENAME in SQL

The FILENAME function returns the full path and name of the file name. It is used to access data stored in the file system, typically used with the OPEN and EXECUTE statements.

Syntax

<code>SELECT FILENAME(<file_name>)</code>

Where:

• <file_name> is the file to which the full path and name are to be returned name.

Example

The following example shows how to use the FILENAME function to get the full path to a file named "my_file.txt" in the current database directory:

<code>SELECT FILENAME('my_file.txt');</code>

This will return results similar to:

<code>C:\my_database\my_file.txt</code>

Uses

The FILENAME function is useful in the following situations:

• Access data stored in the file system
• Specify the path of the file to be opened in the OPEN statement
• Specify the path of the script or command to be executed in the EXECUTE statement

Note

• The FILENAME function only returns the path and name of the file, not the content of the file.
• The FILENAME function will only work properly if the user has permission to access the file system.
• The syntax of the FILENAME function may vary between different SQL dialects.

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