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配置MySQL处理SQL的方式
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)
-- set [global] variable_name=charset;mysql> set global character_set_server=utf8;
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
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