SHOW VARIABLES LIKE "secure_file_priv";
查看默认导出目录

mysql> SELECT * FROM student INTO OUTFILE "G:\ProgramData\MySQL\MySQL Server 8.0\Uploads\student.txt";
ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

SELECT * FROM student INTO OUTFILE "G:/ProgramData/MySQL/MySQL Server 8.0/Uploads/student.txt";
Query OK, 2 rows affected (0.02 sec)

mysql> load data local infile 'G:/ProgramData/MySQL/MySQL Server 8.0/Uploads/student.txt'
 -> into table student(a,b,c);
ERROR 3948 (42000): Loading local data is disabled; this must be enabled on both the client and server sides

mysql> SHOW GLOBAL VARIABLES LIKE 'local_infile';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| local_infile | OFF |
+---------------+-------+
1 row in set, 1 warning (0.01 sec)

mysql> SET GLOBAL local_infile = true;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW GLOBAL VARIABLES LIKE 'local_infile';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| local_infile | ON |
+---------------+-------+
1 row in set, 1 warning (0.01 sec)

mysql> load data local infile 'G:\ProgramData\MySQL\MySQL Server 8.0\Uploads\student.txt'
 -> into table student(id,name,score);
ERROR 2068 (HY000): LOAD DATA LOCAL INFILE file request rejected due to restrictions on access.

C:\Users>mysql -uroot -p --local-infile
使用这种方法登录

mysql> load data local infile 'G:\ProgramData\MySQL\MySQL Server 8.0\Uploads\student.txt'
 -> into table student(id,name,score);
ERROR 2 (HY000): File 'G:ProgramDataMySQLMySQL Server 8.0Uploadsstudent.txt' not found (OS errno 2 - No such file or directory)

mysql> load data local infile 'G://ProgramData/MySQL/MySQL Server 8.0/Uploads/student.txt'
 -> into table student(id,name,score);
Query OK, 8 rows affected, 2 warnings (0.01 sec)
Records: 10 Deleted: 0 Skipped: 2 Warnings: 2

mysql> select *from student;
+------+------+-------+
| id | name | score |
+------+------+-------+
| 1 | zs | 100.0 |
| 2 | zlh | 100.0 |
| 3 | cyx | 99.1 |
| 4 | xjj | 90.0 |
| 5 | aa | 100.0 |
| 6 | alk | 20.1 |
| 7 | zml | 11.1 |
| 8 | djh | 98.0 |
| 9 | cc | 100.0 |
| 10 | pp | 20.0 |
+------+------+-------+
10 rows in set (0.00 sec)