问题
This is a follow up to this question MYSQL incorrect DATETIME format
How to get rid of STRICT_TRANS_TABLES once and for all?
mysql --help reports the following configs:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/etc/my.cnf ~/.my.cnf
$ ls /etc/my.cnf /etc/mysql/my.cnf /usr/local/etc/my.cnf ~/.my.cnf
ls: /Users/pain/.my.cnf: No such file or directory
ls: /etc/mysql/my.cnf: No such file or directory
ls: /usr/local/etc/my.cnf: No such file or directory
/etc/my.cnf
$ cat /etc/my.cnf
[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION
But this doesn't help. I have some legacy code and each time I reboot the computer I have to launch mysql and change sql_mode.
Update
So I gave up on Homebrew-installed MySQL and downloaded it from from mysql.com. But that didn't help either. Following the answers here: How to fix `unknown variable 'sql-mode=ANSI'`? I have tried different variations of /etc/my.cnf: [mysql], [mysqld], sql_mode, sql-mode – nothing helped.
回答1:
This problem scuppered me for a while as well. None of the answers so far addressed the original problem but I believe mine does so I'll post it in case it helps anyone else.
I have MySQL (from mysql.com) Community Edition 5.7.10 installed on OS X 10.10.3
In the end I created a /etc/mysql/my.cnf with the following contents:-
[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION
After restarting the server a SHOW VARIABLES LIKE 'sql_mode'; gave me:-
+---------------+------------------------+
| Variable_name | Value |
+---------------+------------------------+
| sql_mode | NO_ENGINE_SUBSTITUTION |
+---------------+------------------------+
1 row in set (0.00 sec)
Finally, no strict mode!
回答2:
So in the end I removed the MySQL Server I got from the mysql.com, reinstalled it via Homebrew and had to edit
/usr/local/Cellar/mysql/5.6.xx/my.cnf
Where I could comment out the darned STRICT_TRANS_TABLES.
However this doesn't explain why the default config overrides the one from /etc/my.cnf, but I spent too much time on this already as it is. And by the way I am still not sure what to do with the mysql.com provided distribution.
回答3:
On Centos 6.5 i had to edit /usr/my.cnf
and set (even though /etc/my.cnf existed and bindings were successfully set there
[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION
package was from:
mysql-community-client.x86_64 5.6.16-1.el6 @mysql56-community
回答4:
According to MySQL Strict Mode on OS X the problematic setting is actually at /usr/local/mysql/my.cnf and can be commented out to stop this behavior.
回答5:
Now you can`t set sql_mode to empty string, actual query is:
SET @@GLOBAL.sql_mode="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
MySQL 5.7.16
回答6:
I tried every answer I could find on this issue using MySQL 5.7 on Mac OS 10.12 and ultimately got strict mode turned off not because of the location of my.cnf, which can presumably be in any of the places that MySQL says it checks, but thanks to a UNIX permissions issue.
I used MySQL Workbench 6.2.3.12313 to create my.cnf initially. This caused two possible problems: first, it set the option to "sql-mode" instead of "sql_mode", and it made the file (located in /etc) readable and writable only for root. MySQL does not run as root when you install it the way I did, from the binary package on the MySQL web site--it runs as _mysql. So the _mysql user needs to be able to read /etc/my.cnf, or wherever you put it. In order for that to work, you need to run:
sudo chmod o+r /etc/my.cnf
and for good measure you may also want to run:
sudo chmod g+r /etc/my.cnf
Then make sure to restart MySQL. (I have found that this works best through the System Preferences MySQL panel on Mac OS; using the command line is kind of messy and MySQL Workbench's functionality simply doesn't work.) So long as you have an sql_mode setting in my.cnf that does not involve strict mode, strict mode should be off.
回答7:
On Mac OS X El Capitan i created a file .my.cnf in the user home dir and set the settings for mysql under [mysqld] and then restarted mysql. Worked fine!
来源：https://stackoverflow.com/questions/18762308/how-to-get-rid-of-strict-sql-mode-in-mysql