How Windows installs multiple versions of MySQL and starts it at the same time

1 install mysql

Windows install MySQL5.7 Version above （ Compressed package installation ）

2 Use

When installing multiple versions , The first one is like you install 5.6 edition , Just install the above step to install normally ;

When installing the second version , For example, we need to install 5.7 edition ,
First, after decompression ,


The names of the two software should be changed to be different , It must be changed to be different

ini In the document The port should also be changed to be different , For example, change to 3307
Open as administrator cmd Command window , Switch directory to MySQL Of the installation directory bin Under the table of contents
Get into mysql Of bin Execute... After directory

mysqld57   install  mysql57

Be sure to use the renamed ones in each software mysqld57 This

Give each service an alias , Current is mysql57

initialization

After executing this command

mysqld57  --initialize-insecure --user=mysql

, At this time mysql Just create one for yourself data Folder .

The above is installed , When it starts

net  start  mysql 

net start mysql57

Two services are started

The first one is

mysql

The second is

mysql57

The above starts at the same time , If not, change it bin The name of the file in the directory , You can only start one at a time , Close this and start another