centOS 修改数据库配置问题ONLY_FULL_GROUP_BY 忽略大小写 lower_case_table_names

this is incompatible with sql_mode=only_full_group_by

先进入到mysql查看：select @@global.sql_mode;

mysql> select @@GLOBAL.sql_mode;
+----------------------------------------------------------------------------------------------------+
| @@GLOBAL.sql_mode                                                                                  |
+----------------------------------------------------------------------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION |
+----------------------------------------------------------------------------------------------------+

修改 vim  /etc/my.cnf.d/mysql-server.cnf

在mysql-server.cnf 文件中的[mysqld] 下添加一行：sql_node=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION

保存，重启即可

centos 8 安装

wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm

执行该语句时要在rpm下载的文件夹下或者指定下载目录：yum localinstall mysq*.rpm

yum install mysql-server

修改配置

vim /etc/my.cnf.d/mysql-server.cnf

[mysqld]

#忽略大小写

lower_case_table_names=1

#group by 问题
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION

加载配置

mysqld --initialize --console

然后启动

systemctl start mysqld.service

如果启动失败查看日志文件（The innodb_system data file 'ibdata1' must be writable）：

cat /var/log/mysql/mysqld.log

修改该文件权限

chmod -R 777 /var/lib/mysql

mysqld --initialize --console

重新启动