zhangge360的专栏

1.复制解压后根目录下的my-default.ini，重命名为my.ini保存到相同路径下 2.修改my.ini [mysqld] # 设置mysql的安装目录，如果目录中带空格则必须加引号 basedir = "D:\mysql-5.6.26-winx64" # 设置mysql数据库的数据的存放目录，文件夹名必须是data datadir = "D:\mysql-5.

在用mysql执行如下查询的时候：select * from tablename group by id; 1报错信息如下：[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SE...