mysql修改编码（数据库，表，字段）

• 查看各个编码

  //查看字段编码
  SHOW FULL COLUMNS from park_car_user;

  //查看数据库字段
  SHOW CREATE DATABASE db_name;

  //查看表的编码
  SHOW CREATE TABLE tbl_name;

• 修改数据库编码

[client]
default-character-set=gbk
port=3306
[server]
default-character-set=gbk
port=3306
[mysql]
default-character-set=gbk
[mysqld]
port=3306
basedir=C:/Program Files/MySQL/mysql/
datadir=C:/Program Files/MySQL/mysql/data/
default-character-set=gbk
default-storage-engine=INNODB 

• 修改表的编码

ALTER TABLE tbl_name DEFAULT CHARACTER SET charset_name [COLLATE collation_name];

• 修改字段编码

//修改表中所有字段的编码为utf8

ALTER TABLE park_car_user CONVERT TO CHARACTER SET utf8;