How should I tackle --secure-file-priv in MySQL?

Question

I am learning MySQL and tried using a LOAD DATA clause. When I used it as below:

LOAD DATA INFILE \"text.txt\" INTO table mytable;

Answer 1

MySQL use this system variable to control where you can import you files

mysql> SHOW VARIABLES LIKE "secure_file_priv";
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| secure_file_priv | NULL  |
+------------------+-------+

So problem is how to change system variables such as secure_file_priv.

1. shutdown mysqld
2. sudo mysqld_safe --secure_file_priv=""

now you may see like this:

mysql> SHOW VARIABLES LIKE "secure_file_priv";
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| secure_file_priv |       |
+------------------+-------+