How to write mysql function to read file content

MySQL provides the LOAD_FILE() function to read the file content: it accepts the file path parameter and returns the file content as a string. Paths can be absolute or relative. Only users with FILE permission can use this function. Only read files from trusted sources to ensure security. Correctly encode the file path, otherwise return NULL. Returns NULL if the file does not exist or cannot be read.

MySQL read file content function detailed explanation

Question:How to use MySQL to read File content function?

Answer: MySQL provides the LOAD_FILE() function to read the file contents.

Detailed explanation:

LOAD_FILE() The function accepts a file path parameter and returns the contents of the file. File paths can be absolute or relative.

Syntax:

<code>LOAD_FILE(file_path)</code>

Parameters:

• file_path - to be read File path

Return value:

• File content as string

Example:

To read the contents of a file named test.txt, you can use the following query:

<code>SELECT LOAD_FILE('test.txt');</code>

Note:

• Only users with FILE permission can use the LOAD_FILE() function.
• For security reasons, it is recommended to only read files from trusted sources.
• The file path must be encoded correctly, otherwise the function will return NULL.
• If the file does not exist or cannot be read, the function will return NULL.

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