Why is My LOAD_FILE Function Failing to Import Blobs into MySQL?

Troubleshooting LOAD_FILE for Importing Blobs into MySQL

In an attempt to load a file into a MySQL blob, users may encounter difficulties using the LOAD_FILE function. While no errors are displayed, the file fails to be imported successfully.

The MySQL manual provides essential information to address this issue:

• Verify path: Ensure you provide the complete path to the file using LOAD_FILE(file_name). The file must be accessible on the server host.
• Check permissions: The user must possess the FILE privilege and the file should be readable by all.
• Consider file location: If the secure_file_priv system variable is configured, the file must be located within the specified directory.
• Interpret character set: The character_set_filesystem system variable determines how file names are interpreted as literal strings.

To confirm the source of the issue, perform the following checks:

• Verify whether you are specifying the absolute path to the file.
• Ensure that the required permissions are granted to the user.
• Determine the result of the LOAD_FILE function. If NULL is returned, investigate the reasons mentioned in the manual.
• Attempt the query provided in the manual, which updates a blob_col value using LOAD_FILE.

By addressing these potential issues, users can successfully load files into MySQL blobs using the LOAD_FILE function.

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