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mysql 8 查询报错(sql_mode=only_full_group_by)
Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column ‘information_schema.P...
king 2023.02.25 701浏览 0 -
mysql5.7配置文件修改sql_mode 重启无效解决方法。this is incompatible with sql_mode=only_full_group_by
whereis my.cnf找到配置路径:/etc/my.cnf 找到[mysqld],在下面添加 sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DI...
king 2023.02.25 802浏览 0 -
ORACLE中通过SQL语句(alter table)来增加、删除、修改字段
1.添加字段: alter table 表名 add (字段 字段类型) [ default ‘输入默认值’] [null/not null] ; 2.添加备注: comment on column ...
Molet 2023.02.25 777浏览 0 -
MySQL 5.7版本sql_mode=only_full_group_by问题
用到GROUP BY 语句查询时com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #2 of SELECT list is not in GROUP...
king 2023.02.25 783浏览 0 -
SQL ORACLE case when函数用法
case when 用法 (1)简单case函数:格式: case 列名 when 条件值1 then 选项1 when 条件值1 then 选项2…… else 默认值 end 例如: s...
admin 2023.02.25 748浏览 0