Export data prompt -- solution to the problem of secure file priv option

mysql You can use  into outfile  Parameters export the data in the table to csv, For example, you can use the following command to user The data of the table is exported to user.csv

1	select* fromuserintooutfile '/tmp/user.csv'fields terminated by','optionally enclosed by'"'lines terminated by'\r\n

After execution ,user Table data is exported to /tmp/user.csv.
Parameter description ：

into outfile ‘ Exported directory and file name ’
Specify the exported directory and file name

fields terminated by ‘ Separator between fields ’
Define the separator between fields

optionally enclosed by ‘ Field delimiter ’
Define the characters that surround the field （ Invalid numeric field ）

lines terminated by ‘ Line separator ’
Define the separator for each line
Problem analysis

The above order is in mysql5.6 There's no problem running under the , But in mysql5.7 The following error occurs when running under .

ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

Check out the official documents ,secure_file_priv Parameters are used to limit LOAD DATA, SELECT …OUTFILE, LOAD_FILE() To which specified directory .

• secure_file_priv by  NULL  when , Said restrictions mysqld Import or export... Is not allowed .

• secure_file_priv by  /tmp  when , Said restrictions mysqld Only in /tmp Perform import and export in the directory , Other directories cannot execute .

• secure_file_priv  When it's not worth it , Means unrestricted mysqld Import and export in any directory .

see  secure_file_priv  Value , The default is NULL, Indicates that restrictions cannot be imported or exported .

1 2 3 4

mysql> show globalvariables like'%secure_file_priv%'; +------------------+-------+| Variable_name    | Value | +------------------+-------+| secure_file_priv | NULL  | +------------------+-------+1 row in set (0.00 sec)

because  secure_file_priv  Parameters are read-only , Out of commission set global Command to change .

1 2	mysql> setglobalsecure_file_priv=''; ERROR 1238 (HY000): Variable 'secure_file_priv'isa readonlyvariable

resolvent

open my.cnf or my.ini, Restart after adding the following statement mysql.

1	secure_file_priv=''

see secure_file_priv Modified value

1 2 3 4

mysql> show globalvariables like'%secure_file_priv%'; +------------------+-------+| Variable_name    | Value | +------------------+-------+| secure_file_priv |       | +------------------+-------+1 row in set (0.00 sec)

After modification, execute again , Successfully exported .

';

After execution ,user Table data is exported to /tmp/user.csv.
Parameter description ：

into outfile ‘ Exported directory and file name ’
Specify the exported directory and file name

fields terminated by ‘ Separator between fields ’
Define the separator between fields

optionally enclosed by ‘ Field delimiter ’
Define the characters that surround the field （ Invalid numeric field ）

lines terminated by ‘ Line separator ’
Define the separator for each line
Problem analysis

The above order is in mysql5.6 There's no problem running under the , But in mysql5.7 The following error occurs when running under .

ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

Check out the official documents ,secure_file_priv Parameters are used to limit LOAD DATA, SELECT …OUTFILE, LOAD_FILE() To which specified directory .

• secure_file_priv by  NULL  when , Said restrictions mysqld Import or export... Is not allowed .

• secure_file_priv by  /tmp  when , Said restrictions mysqld Only in /tmp Perform import and export in the directory , Other directories cannot execute .

• secure_file_priv  When it's not worth it , Means unrestricted mysqld Import and export in any directory .

see  secure_file_priv  Value , The default is NULL, Indicates that restrictions cannot be imported or exported .

1 2 3 4

mysql> show globalvariables like'%secure_file_priv%'; +------------------+-------+| Variable_name    | Value | +------------------+-------+| secure_file_priv | NULL  | +------------------+-------+1 row in set (0.00 sec)

because  secure_file_priv  Parameters are read-only , Out of commission set global Command to change .

1 2	mysql> setglobalsecure_file_priv=''; ERROR 1238 (HY000): Variable 'secure_file_priv'isa readonlyvariable

resolvent

open my.cnf or my.ini, Restart after adding the following statement mysql.

1	secure_file_priv=''

see secure_file_priv Modified value

1 2 3 4

mysql> show globalvariables like'%secure_file_priv%'; +------------------+-------+| Variable_name    | Value | +------------------+-------+| secure_file_priv |       | +------------------+-------+1 row in set (0.00 sec)

After modification, execute again , Successfully exported .

1 2	mysql> select* fromuserintooutfile '/tmp/user.csv'fields terminated by','optionally enclosed by'"'lines terminated by'\r\n'; Query OK, 15 rowsaffected (0.00 sec)