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

As of MySQL 5.7.x, the default sql mode includes ONLY_FULL_GROUP_BY. (Before 5.7.5, MySQL does not detect functional dependency and ONLY_FULL_GROUP_BY is not enabled by default).

ONLY_FULL_GROUP_BY: Non-deterministic grouping queries will be rejected

For more details check the documentation of sql_mode

You can follow either of the below methods to modify the sql_mode

Method 1:

Check default value of sql_mode:

SELECT @@sql_mode

Remove ONLY_FULL_GROUP_BY from console by executing below query:

SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));

Method 2:

Access phpmyadmin for editing your sql_mode

• Login on phpmyadmin and open localhost
• Top on Variables present on the top in menu items and search out for sql mode
• Click on edit button to remove ONLY_FULL_GROUP_BY and save