MySQL5.7 GROUP BY clause Error,only_full_group_by

#1055 - Expression of SELECT list is not in GROUP BY clause and contains nonaggregated column this is incompatible with sql_mode=only_full_group_by

5.7版本的mysql出現此問題。

 

 

I had a struggle getting this to work i've tested it and it's working on lamp server mysql version 5.12

So, steps to success:

1. sudo vim /etc/mysql/conf.d/mysql.cnf

2. Scroll to the bottom of file Copy and paste

   [mysqld] sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

to the bottom of the file

1. save and exit input mode
2. sudo service mysql restart to restart MySQL.

Done!

 

MySQL 5.7.5 and up implements detection of functional dependence. If the ONLY_FULL_GROUP_BY SQL mode is enabled (which it is by default), MySQL rejects queries for which the select list, HAVING condition, or ORDER BY list refer to nonaggregated columns that are neither named in the GROUP BY clause nor are functionally dependent on them. (Before 5.7.5, MySQL does not detect functional dependency and ONLY_FULL_GROUP_BY is not enabled by default. For a description of pre-5.7.5 behavior, see the MySQL 5.6 Reference Manual.)