mysql8 安装无my.ini配置文件和执行groupBy报错修改sql_mode不生效的解决方案

//dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It‘s a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [client] default-character-set = utf8mb4 [mysql] default-character-set = utf8mb4 [mysqld] character-set-client-handshake = FALSE character-set-server = utf8mb4 collation-server = utf8mb4_bin init_connect=‘SET NAMES utf8mb4‘ # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. basedir = E:\mysql-8.0.21-winx64 datadir = E:\mysql-8.0.21-winx64\data port = 3306 # server_id = ..... # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. join_buffer_size = 128M sort_buffer_size = 16M read_rnd_buffer_size = 16M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

 

 

 

2.报错[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column ‘information_schema.PROFILING.SEQ‘ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

1）网上的解决方案都是修改sql_mode 但是因为我的my.ini没有这个文件，怎么改都不生效，如果您也遇到同样的问题记得先把第一步操作了，重新启动mysq

2）在添加my.ini文件的时候就把sql_mode参数添加进去

3）该方法若mysql重启则失效

mysql中执行 show variables like ‘%sql_mode‘;

set @@GLOBAL.sql_mode=‘STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION‘;

mysql8 安装无my.ini配置文件和执行groupBy报错修改sql_mode不生效的解决方案

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