数据库字符集修改

修改数据库字符集：

ALTER DATABASE database_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 table_name CONVERT TO CHARACTER SET character_name [COLLATE ...] 如：ALTER TABLE temp_table CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;

只是修改表的默认字符集：

ALTER TABLE table_name DEFAULT CHARACTER SET character_name [COLLATE...]; 如：ALTER TABLE temp_table DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

修改字段的字符集：

ALTERTABLE tbl_name CHANGE c_name c_name CHARACTER SET character_name [COLLATE...];
如：ALTERTABLE 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;