如何查看mysql的安装目录以及如何查看mysql数据库物理文件存放位置

C:Users78204>mysql
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 3
Server version: 5.7.25 MySQL Community Server (GPL)

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> show variables like "%char%";
+--------------------------+----------------------------------------+
| Variable_name            | Value                                  |
+--------------------------+----------------------------------------+
| character_set_client     | utf8                                   |
| character_set_connection | utf8                                   |
| character_set_database   | utf8                                   |
| character_set_filesystem | binary                                 |
| character_set_results    | utf8                                   |
| character_set_server     | utf8                                   |
| character_set_system     | utf8                                   |
| character_sets_dir       | D:mysql-5.7.25-winx64sharecharsets |
+--------------------------+----------------------------------------+
8 rows in set, 1 warning (0.01 sec)

mysql>

1：进入cmd页面输入mysql

2：接着输入命令为  show variables like "%char%";

=============================================

二：如何查看mysql数据库物理文件存放位置

命令如下  ：   show global variables like "%datadir%";

mysql> show global variables like "%datadir%";
+---------------+------------------------------+
| Variable_name | Value                        |
+---------------+------------------------------+
| datadir       | D:mysql-5.7.25-winx64data |
+---------------+------------------------------+
1 row in set, 1 warning (0.01 sec)

mysql>