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mysql免安裝版,服務無法啟動沒有抱任何錯誤

1.解壓

2.新建my.ini

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
basedir = "D:\mysql-5.7.26-winx64\mysql-5.7.26-winx64"
datadir = "D:\mysql-5.7.26-winx64\mysql-5.7.26-winx64\data"
character-set-server = utf8
port = 3306
skip-grant-tables

3.在bin目錄下執行一下命令,會自動建立data資料夾

mysqld --initialize

4.在bin目錄下輸入下面命令,啟動服務 

mysqld –install

5.啟動mysql服務

net start mysql

6.輸入命令進入mysql,更新密碼

update mysql.user set authentication_string=password('123456789') where user='root';

7.重新整理許可權

flush privileges

8.刪除my.ini中最後一句:skip-grant-tables

9.重啟mysql

net stop mysql
net start mysql