windows 10环境下将mysql从5.7升级到8.0

无为

从mysql官方网站下载 mysql8.0 最新版

2.下载后解压到目标安装位置，我的位置是在D:/dev/server/mysql-8.0.28-winx64

3.配置my.ini文件，我这是从5.7复制过来的，需要将basedir和datadir修改为你自己的位置。注意斜杠的方向。

[mysql]
default-character-set=utf8mb4
[mysqld]
port=3306
basedir=D:/dev/server/mysql-8.0.28-winx64
datadir=D:/dev/data8
character-set-server=utf8mb4
default-storage-engine=INNODB
max_connections=200
collation-server=utf8mb4_unicode_ci
sql-mode='NO_ENGINE_SUBSTITUTION'
init_connect='SET NAMES utf8mb4'
innodb_buffer_pool_size=512M
innodb_flush_log_at_trx_commit=1
innodb_lock_wait_timeout=120
innodb_log_buffer_size=4M
innodb_log_file_size=256M
interactive_timeout=120
join_buffer_size=2M
key_buffer_size=32M
log_error_verbosity=1
max_allowed_packet=16M
max_heap_table_size=64M
myisam_max_sort_file_size=64G
myisam_sort_buffer_size=32M
read_buffer_size=512kb
read_rnd_buffer_size=4M
server_id=1
skip-external-locking=on
sort_buffer_size=256kb
table_open_cache=256
thread_cache_size=16
tmp_table_size=64M
wait_timeout=120
default-authentication-plugin=mysql_native_password
[client]
port=3306