这篇文章主要讲解了“MySQL参数如何配置”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“MySQL参数如何配置”吧!
SQL_MODE
配置MySQL处理SQL的方式
字符参数
中文乱码
mysql> SELECT course,AVG(score) FROM score GROUP BY course;+--------+------------+| course | AVG(score) |+--------+------------+| ???? | 70.0000 || ???? | 74.5000 || ?? | 88.0000 || ???? | 35.0000 || ?? | 80.0000 || ???? | 30.0000 || ??? | 40.0000 || ???? | 70.0000 |+--------+------------+8 rows in set (0.00 se
mysql> show variables like 'character%';+--------------------------+----------------------------+| Variable_name | Value |+--------------------------+----------------------------+| character_set_client | latin1 || character_set_connection | latin1 || character_set_database | utf8 || character_set_filesystem | binary || character_set_results | latin1 || character_set_server | latin1 || character_set_system | utf8 || character_sets_dir | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+8 rows in set (0.00 sec)mysql> set character_set_database=utf8;Query OK, 0 rows affected, 1 warning (0.00 sec)mysql> set character_set_server=utf8;Query OK, 0 rows affected (0.00 sec)
临时修改
-- set [global] variable_name=charset;mysql> set global character_set_server=utf8;
永久修改
在my.cnf
文件中指定
影响参数:
-
character_set_client
-
character_set_connection
-
character_set_results
影响参数:
-
character_set_database
-
character_set_server
感谢各位的阅读,以上就是“MySQL参数如何配置”的内容了,经过本文的学习后,相信大家对MySQL参数如何配置这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是亿速云,小编将为大家推送更多相关知识点的文章,欢迎关注!
原创文章,作者:kirin,如若转载,请注明出处:https://blog.ytso.com/225807.html