mysql字符集相关系统变量
character_set_system:存储标识符的字符集,始终为utf8character_set_server:服务器的 默认字符集collation_server:服务器的默认排序规则character_set_database:数据库的 默认字符集collation_database: 数据库的默认排序规则character_set_client:客户端向服务器发送sql语句时使用的字符集char...
mysql全文搜索fulltext
mysql> select * from t2;+------+------+----------------------------+| a | b | c |+------+------+----------------------------+| 1 | aa | aa1111111111111111111111...