The function in MySQL that reads file content is LOAD_FILE(), and the usage is LOAD_FILE(file_name), where file_name is the file path and name. The function returns a string of file content, such as: SELECT LOAD_FILE('/tmp/data.txt'). However, attention should be paid to file system permissions, path correctness, large file reading time, and returning NULL if the file does not exist.
Which MySQL function can read the file contents?
The function in MySQL that can read the contents of the file is LOAD_FILE()
.
Function usage
LOAD_FILE(file_name)
Parameters
-
file_name
: The path and name of the file to be read.
Return value
Returns the string of the file content.
Example
The following query reads the contents from the /tmp/data.txt
file:
SELECT LOAD_FILE('/tmp/data.txt');
Note
-
LOAD_FILE()
The function may be affected by file system permissions and security settings. - Make sure the file path is correct.
- Large files may take longer to read.
- If the file does not exist or cannot be read, the function will return
NULL
.
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