Disable ONLY_FULL_GROUP_BY

Question

I accidentally enabled ONLY_FULL_GROUP_BY mode like this:

SET sql_mode = \'ONLY_FULL_GROUP_BY\';

How do I disable it?

Answer 1

This is a permanent solution for MySql 5.7+ on Ubuntu 14+:

$ sudo bash -c "echo -e \"\nsql_mode=IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION\"  >> /etc/mysql/mysql.conf.d/mysqld.cnf"
$ sudo service mysql restart
# Check if login attempt throws any errors
$ mysql -u[user] -p # replace [user] with your own user name

If you are able to login without errors - you should be all set now.

Answer 2

The MySQL documentation also specifies the following methods:

• Set sql-mode="<modes>" in an option file such as my.cnf (Unix operating systems) or my.ini (Windows).
• To set the SQL mode at server startup via the command line, use the --sql-mode="<modes>" option.

*Where <modes> is a list of different modes separated by commas.

To clear the SQL mode explicitly, set it to an empty string using --sql-mode="" on the command line, or sql-mode="" in an option file.

I added the sql-mode="" option to /etc/my.cnf and it worked.

This SO solution discusses ways to find out which my.cnf file is being used by MySQL.

Don't forget to restart MySQL after making changes.

Answer 3

with MySQL version 5.7.28 check by using
SELECT @@sql_mode; and update with

SET @@sql_mode = 'STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'

Answer 4

Be careful using

SET sql_mode = '' 

This actually clears all the modes currently enabled. If you don't want to mess with other settings, you'll want to do a

SELECT @@sql_mode 

first, to get a comma-separated list of the modes enabled, then SET it to this list without the ONLY_FULL_GROUP_BY option.

Answer 5

For MySql 8 you can try this one. (not tested on 5.7. Hope it also works there)

First open this file

sudo vi /etc/mysql/my.cnf and paste below code at the end of above file

[mysqld]
sql_mode = "STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION"

Answer 6

You can disable it using the config file my.cnf :

$ mysql --verbose --help | grep my.cnf

So in macOS 10.12, it's at usr/local/etc/my.cnf. You can edit sql_mode here:

# Default Homebrew MySQL server config
[mysqld]
# Only allow connections from localhost
bind-address = 127.0.0.1
sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"