0. my.ini MySQL 的初始化配置信息
mysql 启动时会读取该配置文件,如果按照默认方式安装 mysql 的话,该配置文件在:
C:\ProgramData\MySQL\MySQL Server 5.7\my.ini
1. MySQL 版本查询
首先登陆 MySQL 命令行:
mysql> SELECT version();
+------------+
| version() |
+------------+
| 5.7.19-log |
+------------+
1 row in set (0.00 sec)
2. 端口号及其他(3306 是默认端口号)
首先进入 MySQL 命令行,如下方法均可查看:
方法 1,使用全局变量:
mysql> SHOW global variables like 'port'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | port | 3306 | +---------------+-------+ 1 row in set, 1 warning (0.00 sec)
方法 2,使用 status,获得系统全面信息
mysql> status; -------------- mysql Ver 14.14 Distrib 5.7.19, for Win64 (x86_64) Connection id: 9 Current database: Current user: root@localhost SSL: Not in use Using delimiter: ; Server version: 5.7.19-log MySQL Community Server (GPL) Protocol version: 10 Connection: localhost via TCP/IP Server characterset: utf8 Db characterset: utf8 Client characterset: gbk Conn. characterset: gbk TCP port: 3306 Uptime: 1 hour 54 sec Threads: 1 Questions: 19 Slow queries: 0 Opens: 109 Flush tables: 1 Open tables: 102 Queries per second avg: 0.005 --------------