006-LAMP_MySQL_client

006-LAMP_MySQL_client

MySQL client options

命令行交互式客户端程序：mysql

使用方法

[root@husa ~]# rpm -q mariadb
mariadb-5.5.41-2.el7_0.x86_64
[root@husa ~]# man mysql

mysql
mysql [OPTIONS] [database]

常用选项

--user=user_name, -u user_name：用户名，默认为root
--host=host_name, -h host_name：Connect to the MySQL server on the given host.远程主机(即mysql服务器地址)，注意这里是服务器的地址！，默认为localhost
%：匹配任意长度的任意字符
172.16.%.%，172.16.0.0/16
_：匹配任意单个字符</font>
--password[=password], -p[password]：username表示的用户的密码，默认为空
--ssl*：Options that begin with --ssl specify whether to connect to the server via SSL and indicate where to find SSL keys and certificates.
--port=port_num, -P port_num：The TCP/IP port number to use for the connection.
--default-character-set=utf8.：设置链接后使用的字符集
--execute=statement, -e statement：Execute the statement and quit.链接至服务器后并让其执行命令后直接返回，可用于shell脚本中
-Ddb_name：连接到服务器端后，设定此处指明的数据库为默认数据库

注意：mysql的用户账户由两部分组成：’USERNAME’@’HOST’；其中HOST用于限制此用户可通过哪些远程主机链接当前的mysql服务；HOST的表示方式，支持使用通配符

在bash中直接执行SQL语句

shell> mysql db_name < script.sql > output.tab

mysql链接到服务器后的相关控制

mysql>help

?         (\?) Synonym for `help'.
clear     (\c) Clear the current input statement.
connect   (\r) Reconnect to the server. Optional arguments are db and host.
delimiter (\d) Set statement delimiter.     #\d CHAR：设定新的语句结束符
edit      (\e) Edit command with $EDITOR.
ego       (\G) Send command to mysql server, display result vertically.     #语句结束标记，结果垂直方式显示
exit      (\q) Exit mysql. Same as quit.
go        (\g) Send command to mysql server.    #语句结束标记
help      (\h) Display this help.
nopager   (\n) Disable pager, print to stdout.
notee     (\t) Don't write into outfile.
pager     (\P) Set PAGER [to_pager]. Print the query results via PAGER.
print     (\p) Print current command.
prompt    (\R) Change your mysql prompt.
quit      (\q) Quit mysql.              # 退出
rehash    (\#) Rebuild completion hash.
source    (\.) Execute an SQL script file. Takes a file name as an argument.
status    (\s) Get status information from the server.
system    (\!) Execute a system shell command.
tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
use       (\u) Use another database. Takes database name as argument.
charset   (\C) Switch to another charset. Might be needed for processing binlog with multi-byte charsets.   #\u db_name： 设定哪个库为默认数据库
warnings  (\W) Show warnings after every statement.
nowarning (\w) Don't show warnings after every statement.