mysql数据库修改字符编码

修改数据库字符集

ALTER DATABASE db_name DEFAULT CHARACTER SET character_name [COLLATE ...];  

把表默认的字符集和所有字符列（CHAR,VARCHAR,TEXT）改为新的字符集：

ALTER TABLE tbl_name CONVERT TO CHARACTER SET character_name [COLLATE ...] 如：ALTER TABLE logtest CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; 

只是修改表的默认字符集：

ALTER TABLE tbl_name DEFAULT CHARACTER SET character_name [COLLATE...]; 如：ALTER TABLE logtest DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci; 

修改字段的字符集：

ALTER TABLE tbl_name CHANGE c_name c_name CHARACTER SET character_name [COLLATE ...]; 如：ALTER TABLE logtest CHANGE title title VARCHAR(100) CHARACTER SET utf8 COLLATE utf8_general_ci; 

查看数据库编码：

SHOW CREATE DATABASE db_name;  

查看表编码：

SHOW CREATE TABLE tbl_name;  

查看字段编码：

SHOW FULL COLUMNS FROM tbl_name;