SHOW VARIABLES LIKE "%version%";
+-------------------------+------------------------------------------+
| Variable_name           | Value                                    |
+-------------------------+------------------------------------------+
| protocol_version        | 10                                       |
| version                 | 5.0.27-standard                          |
| version_comment         | MySQL Community Edition - Standard (GPL) |
| version_compile_machine | i686                                     |
| version_compile_os      | pc-linux-gnu                             |
+-------------------------+------------------------------------------+
5 rows in set (0.04 sec)

MySQL 5.0参考手册(pdf) -确定您当前的MySQL版本-第42页

使用mysql -V对我来说在Ubuntu上很好。

对于UBUNTU，您可以尝试以下命令来检查mysql版本:

mysql --version

很多答案建议使用mysql——version。但是mysql程序是客户端。服务器为mysqld。所以命令应该是

mysqld --version

or

mysqld --help

这在Debian和Windows上都适用。

当你用客户端连接到MySQL服务器时，你可以使用

select version()

or

select @@version

MySQL服务器版本

shell> mysqld --version

MySQL客户端版本

shell> mysql --version

shell> mysql -V 

E:\>mysql -u root -p
Enter password: *******
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1026
Server version: 5.6.34-log MySQL Community Server (GPL)

Copyright (c) 2000, 2016, 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> select @@version;
+------------+
| @@version  |
+------------+
| 5.6.34-log |
+------------+
1 row in set (0.00 sec)