實驗環境
Ubuntu16.4;
MySQL5.7
問題描述
準備將數據庫中某張表導出來,報如下錯誤:
mysql> SELECT * FROM runoob_tbl INTO OUTFILE '/tmp/runoob.txt';
ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement
問題分析
我們可以在命令行查看secure-file-priv
的值:
mysql> show global variables like '%secure_file_priv%';
+------------------+-----------------------+
| Variable_name | Value |
+------------------+-----------------------+
| secure_file_priv | /var/lib/mysql-files/ |
+------------------+-----------------------+
1 row in set (0.01 sec)
可以看到secure_file_priv
默認值爲/var/lib/mysql-files/
,或許這就是導出不成功的原因;
問題解決
找到mysql
的配置文件。查找資料,說是windows
系統下是my.ini
,·linux
下應該在my.ini
文件中。但是筆者實際修改的是/etc/mysql/mysql.conf.d/mysqld.cnf
文件。打開該文件後在最後一行添加secure_file_priv='/'
,如下所示:
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
..............
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem
secure_file_priv='/'
其實看到該文檔第一句話,這便是mysql服務器的配置文件咯!
下來我們執行剛纔的導出語句
mysql> select * from runoob_tbl into outfile '/tmp/runoob1.txt';
Query OK, 4 rows affected (0.00 sec)
此時已經成功導出數據。
**注意注意:**筆者這裏的導出目錄是/tmp
目錄下。其實也試過在其他目錄下導出,但是會報一些錯誤,如Can't create/write to file '/home/hadoop/runoob1.txt' (Errcode: 13 - Permission denied)
(有好的辦法解決該錯誤了,歡迎留言)。無奈之下,就先導出在`/tmp’目錄下了。