1 MariaDB的性質(zhì)

MariaDB從MySQL衍生而來(lái)，作為完全開(kāi)源的一款數(shù)據(jù)庫(kù)產(chǎn)品。關(guān)于MariaDB更詳細(xì)的信息其實(shí)是在MariaDB.org中。在MariaDB download中也做了詳細(xì)的說(shuō)明了MariaDB的性質(zhì)：

MariaDB is free and open source software

The MariaDB database server is published as free and open source software under the General Public License version 2. You can download and use it as much as you want free of charge. All use of the binaries from mariadb.org is at your own risk as stated in the GPLv2. While we do our best to make the world’s best database software, the MariaDB Foundation does not provide any guarantees and cannot be hold liable for any issues you may encounter. The MariaDB Foundation does not provide any help or support.

If you intend to run MariaDB database server in production we recommend purchasing a subscription from MariaDB Corporation, or any of the other commercial support providers in the MariaDB ecosystem. There are many resources you can use to learn MariaDB and support yourself or get peer support online.

這里面說(shuō)明了MariaDB遵循GPLv2協(xié)議，其實(shí)說(shuō)的就是MariaDB完全開(kāi)源，全部免費(fèi)，但是不對(duì)使用者承擔(dān)任何責(zé)任。

2 MariaDB與MySQL各版本之間的對(duì)應(yīng)關(guān)系

目前MariaDB最新的版本是MariaDB 10.3，里面的List of All MariaDB 10.3 Releases中則介紹了目前已有的MariaDB的版本，而Comparison with MySQL則簡(jiǎn)單介紹了目前比較新的MariaDB與MySQL版本之間的區(qū)別。

3 查看MariaDB版本

3.1 方法1

[root@shizhi002 ~]# mysql -V

mysql Ver 15.1 Distrib 5.5.60-MariaDB, for Linux (x86_64) using readline 5.1

3.2 方法2

[root@shizhi002 ~]# mysql -u root -p

Enter password:

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 525

Server version: 5.5.60-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

3.3 方法3

MariaDB [(none)]> status

--------------

mysql Ver 15.1 Distrib 5.5.60-MariaDB, for Linux (x86_64) using readline 5.1

Connection id:525

Current database:

Current user:root@localhost

SSL:Not in use

Current pager:stdout

Using outfile:''

Using delimiter:;

Server:MariaDB

Server version:5.5.60-MariaDB MariaDB Server

Protocol version:10

Connection:Localhost via UNIX socket

Server characterset:latin1

Db characterset:latin1

Client characterset:utf8

Conn. characterset:utf8

UNIX socket:/var/lib/mysql/mysql.sock

Uptime:13 days 23 hours 16 min 22 sec

Threads: 1 Questions: 33739 Slow queries: 0 Opens: 142 Flush tables: 2 Open tables: 83 Queries per second avg: 0.027

--------------

參考

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