日期:2014-05-16  浏览次数:20786 次

mysql修改表、字段、库的字符集

转载:http://fatkun.com/2011/05/mysql-alter-charset.html

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