
mysql命令行工具
mysql是太平洋在线xg111连接数据库的xg111net企业邮局太平洋在线下载客户端工具。
语法如下sql2000客户端工具:
mysql [options] [database]
1.连接选项--user=user_namesql2000客户端工具, -u user_name:用于连接到服务器的MySQL帐户的用户名--password[=password], -p[password]:用于连接服务器的MySQL帐户的密码--host=host_name, -h host_name:连接到给定主机上的MySQL服务器--port=port_num, -P port_num:对于TCP / IP连接,使用的端口号。--socket=path, -S path:连接localhost,要使用的Unix套接字文件连接到mysql服务器:
[root@localhost~]# mysql -u root -p -P 3306 -h localhost -S /var/lib/mysql/mysql.sockEnter password:Welcome to the MySQL monitor. Commands end with ; or g.Your MySQL connection id is 8Server version: 5.7.21-log MySQL Community Server (GPL) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql>login-path 便捷登陆
--login-path=name 从.mylogin.cnf中读取登录路径选项login-path是MySQL5.6开始支持的新特性。通过借助mysql_config_editor工具将登陆MySQL服务的认证信息加密保存在.mylogin.cnf文件(默认位于用户主目录) 。MySQL客户端工具可通过读取该加密文件连接MySQL,避免重复输入登录信息,避免敏感信息暴露。
配置login-path:mysql_config_editor set --login-path=3306 --user=root --host=localhost --port=3306 --password 其中可配置项 -h,--host=name 添加host到登陆文件中 -G,--login-path=name 在登录文件中为login path添加名字(默认为client) -p,--password 在登陆文件中添加密码(该密码会被mysql_config_editor自动加密) -u,--user 添加用户名到登陆文件中 -S,--socket=name 添加sock文件路径到登陆文件中 -P,--port=name 添加登陆端口到登陆文件中 查看login-path配置mysql_config_editor print --login-path=3306查看所有login-path信息mysql_config_editor print --all删除login-path配置:mysql_config_editor remove --login-path=3306重置login-path配置:mysql_config_editor reset --login-path=3306使用login-path登录:mysql --login-path=3306mysql --login-path=3306 test2.客户端字符集选项--default-character-set=charset_name用 charset_name作为客户端连接的默认字符集
配置客户端连接字符集:
a.在my.cnf的[mysql]组中配置default-character-set=charset_name
b.在mysql的命令行中添加--default-character-set=charset_name
c.在mysql客户端连接成功后执行 set names charset
示例
[root@localhost ~]# mysql -u root -p -P 3306 -h localhost -S /var/lib/mysql/mysql.sock --default-character-set=gbkEnter password:Welcome to the MySQL monitor. Commands end with ; or g.Your MySQL connection id is 10Server version: 5.7.21-log MySQL Community Server (GPL) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> show variables like 'char%';+--------------------------+----------------------------+| Variable_name | Value |+--------------------------+----------------------------+| character_set_client | gbk || character_set_connection | gbk || character_set_database | utf8 || character_set_filesystem | binary || character_set_results | gbk || character_set_server | utf8 || character_set_system | utf8 || character_sets_dir | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+8 rows in set (0.01 sec)备注:
上面的三个gbk字符集是客户端选项设置的结果
3.执行选项--execute=statement, -e statement在mysql客户端执行SQL语句并退出,常用于批处理脚本
查看test表数据:
[root@localhost ~]# mysql -uroot -p -e "use test;select * from test;";Enter password:+----+| id |+----+| 1 || 2 || 3 |+----+4.格式化选项--vertical, -E 输出方式按照字段顺序竖着显示--silent, -s 去掉mysql中的线条框显示[root@localhost ~]# mysql -uroot -p -E -e "use test;select * from test;";Enter password:*************************** 1. row ***************************id: 1*************************** 2. row ***************************id: 2*************************** 3. row ***************************id: 3[root@localhost ~]# mysql -uroot -p -s -e "use test;select * from test;";Enter password:id1235.错误处理选项--force, -f 即使发生SQL错误,也要继续。--verbose, -v 显示详细模式--show-warnings 显示警告示例
[root@localhost ~]# more test.sqltruncate table test;insert into test values(1);insert into test values('a');insert into test values(3);[root@localhost ~]# mysql -uroot -p test < test.sqlEnter password:ERROR 1366 (HY000) at line 3: Incorrect integer value: 'a' for column 'id' at row 1[root@mysqlnode1 ~]# mysql -uroot -p -e "use test;select * from test;";Enter password:+----+| id |+----+| 1 |+----+[root@localhost ~]# mysql -uroot -p test -f < test.sqlEnter password:ERROR 1366 (HY000) at line 3: Incorrect integer value: 'a' for column 'id' at row 1[root@localhost ~]# mysql -uroot -p -e "use test;select * from test;";Enter password:+----+| id |+----+| 1 || 3 |+----+[root@localhost ~]# mysql -uroot -p test -f -v --show-warnings < test.sqlEnter password:--------------truncate table test-------------- --------------insert into test values(1)-------------- --------------insert into test values('a')-------------- ERROR 1366 (HY000) at line 3: Incorrect integer value: 'a' for column 'id' at row 1--------------insert into test values(3)-------------- [root@localhost ~]# mysql -uroot -p -e "use test;select * from test;";Enter password:+----+| id |+----+| 1 || 3 |+----+标签: sql2000客户端工具
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