MySQL修改資料庫、表、欄位字符集
修改資料庫字符集:
程式碼如下:
ALTER DATABASE db_name DEFAULT CHARACTER SET character_name [COLLATE ...];
把表預設的字符集和所有字元列(CHAR,VARCHAR,TEXT)改為新的字符集:
程式碼如下:
ALTER TABLE tbl_name CONVERT TO CHARACTER SET character_name [COLLATE ...]
如:ALTER TABLE logtest CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
只是修改表的預設字符集:
程式碼如下:
ALTER TABLE tbl_name DEFAULT CHARACTER SET character_name [COLLATE...];
如:ALTER TABLE logtest DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
修改欄位的字符集:
程式碼如下:
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;
檢視資料庫編碼:
程式碼如下:
SHOW CREATE DATABASE db_name;
查看錶編碼:
程式碼如下:
SHOW CREATE TABLE tbl_name;
檢視欄位編碼:
程式碼如下:
SHOW FULL COLUMNS FROM tbl_name;