mysql修改表、字段、库的字符集

# 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 ...

zhangustb

8903人浏览 · 2022-04-12 16:06:20

zhangustb · 2022-04-12 16:06:20 发布

# 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;