1.設置5.7版本的字符集為utf8
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
2.導出5.7版本的數據
mysqldump -uroot -p test --default-character-set=utf8 --hex-blob > c1.sql
3.設置8.0版本的字符集為utf8mb4
show global variables like'%character_set%';
4.導入數據到8.0版本
source c:/sql.sql