I am trying to write the results of MySQL script to a text file using the following code in my script.
SELECT p.title, p.content, c.name FROM post p
LEFT JOI
This is the example of my SQL that worked perfectly in WAMP SERVER (windows):
SELECT display_name,user_email,user_registered FROM test_wp_users
ORDER BY user_registered ASC
INTO OUTFILE 'C:/wamp64/tmp/usersbyemail.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n';
PS: Note that bars in path should be left-to-right to work perfectly in MYSQL.
Ubuntu 16.04 (EASY): Find out where you are allowed to write
mysql> SELECT @@GLOBAL.secure_file_priv;
+---------------------------+
| @@GLOBAL.secure_file_priv |
+---------------------------+
| /var/lib/mysql-files/ |
+---------------------------+
1 row in set (0.00 sec)
Then, just write there
mysql> SELECT * FROM train INTO OUTFILE '/var/lib/mysql-files/test.csv' FIELDS TERMINATED BY ',';
Query OK, 992931 rows affected (1.65 sec)
mysql>
Mac OSX: Mysql installed via MAMP
Find out where you are allowed to write
mysql> SELECT @@GLOBAL.secure_file_priv;
+---------------------------+
| @@GLOBAL.secure_file_priv |
+---------------------------+
| NULL |
+---------------------------+
1 row in set (0.00 sec)
NULL means you're screwed so you have to create the file "~/.my.cnf"
Enable read/write for MySQL installed via MAMP (on Mac):
edit ~/.my.cnf (using vi or your favorite editor) and add the following lines:
$ vi ~/.my.cnf
[mysqld_safe] [mysqld] secure_file_priv="/Users/russian_spy/"
Now check if it works:
a. start mysql (default MAMP user is root, password is also root)
$ /Applications/MAMP/Library/bin/mysql -u root -p
b. in mysql look at the white-listed paths
mysql> SELECT @@GLOBAL.secure_file_priv;
+---------------------------+
| @@GLOBAL.secure_file_priv |
+---------------------------+
| /Users/russian_spy/ |
+---------------------------+
1 row in set (0.00 sec)
c. Finally, test by exporting a table train
into a CSV file
mysql> SELECT * FROM train INTO OUTFILE '/Users/russian_spy/test.csv' FIELDS TERMINATED BY ',';
Query OK, 992931 rows affected (1.65 sec)
mysql>
Replace "\"
to "/"
in your file path.
Like this:
INTO OUTFILE 'D:/MySql/mysqlTest.txt';