MySQL参数如何配置

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，小编将为大家推送更多相关知识点的文章，欢迎关注！