客户端程序连接MySql服务

1. 不指定连接参数

因为没有指定参数，将使用默认值
语法：shell> mysql
默认主机名为：localhost
[root@root ~]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.6.24 MySQL Community Server (GPL)


Copyright (c) 2000, 2015, 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> 

2. 指定主机名和用户名和密码

语法：
shell> mysql --host=localhost --user=myname --password=mypass mydb
shell> mysql -h localhost -u myname -pmypass mydb

host：主机名  user：登录的用户 password：密码 mydb：访问的数据库

[root@qingmeng001 ~]# mysql --host=localhost --user=chenwx --password=chenwx mysql
Warning: Using a password on the command line interface can be insecure.
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 29
Server version: 5.6.24 MySQL Community Server (GPL)

Copyright (c) 2000, 2015, 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> 

[root@qingmeng001 ~]# mysql -h localhost -u chenwx -pchenwx mysql
Warning: Using a password on the command line interface can be insecure.
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 30
Server version: 5.6.24 MySQL Community Server (GPL)

Copyright (c) 2000, 2015, 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> 

note：使用-p或 --password指定密码，在-p或-password后不能有空格

3.避免因安全问题，指定-p或-password选项不直接跟密码

语法：
shell> mysql --host=localhost --user=myname --password mydb
shell> mysql -h localhost -u myname -p mydb

[root@qingmeng001 ~]# mysql --host=localhost --user=chenwx --password mysql
Enter password:    --输入密码，不显示输入内容及输入个数
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 31
Server version: 5.6.24 MySQL Community Server (GPL)

Copyright (c) 2000, 2015, 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> 

4.指定IP和协议

语法：
shell> mysql --host=127.0.0.1
shell> mysql --protocol=TCP
--protocol={TCP|SOCKET|PIPE|MEMORY}
在一些unix系统中需要强制指定TCP/IP，否则指定的端口号将呗忽略

5. 配置ipv6

--host=::1.

6. 使用TCP/IP连接到远程服务器

语法：
shell> mysql --host=remote.example.com
默认端口：3306

7.指定端口选项--port -P

语法：
shell> mysql --host=remote.example.com --port=13306

8. windows使用named-pipe连接