cmd中mysql使用教程
程序员文章站
2022-10-19 11:53:59
1.服务中打开mysql服务;
2.cmd中cd到mysql的bin文件目录;
3.mysql -uusername -ppwd(如:mysql -uroot-proot)...
1.服务中打开mysql服务;
2.cmd中cd到mysql的bin文件目录;
3.mysql -uusername -ppwd(如:mysql -uroot-proot)
4.会提示:(表示在cmd中输入密码时不安全的,但也只是提示一下,除了吓你一下并没有其他卵用)
mysql: [Warning] Using a password on the command line interface can be insecure.
5.继续提示:(欢迎使用啊,数据库版本啊,conn_id啊,使用方法啊之类的)
Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.3-m13-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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.
6.——————————————《恭喜你,进入数据库了》——————————————
《请务必在每行代码后添加【;】》
7.那么接下来你肯定要先看看你数据库都有啥东西吧;进入数据库第一层,看看都有什么数据库:
show database;
+--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sakila | | test | | testdjango | | world | +--------------------+ 7 rows in set (0.01 sec)此时展示你databases中的所有数据库,一般前五个是会自动创建的,当然版本不同,自动创建的rows可能也有差异,不用管他;
8.众所周知,数据库的保存可以以表为单位,那就随机进入一个数据库看看都有哪些表吧:
首先,先随机进入一个数据库:
use mysql;进入成功后会提示:Database changed
接着,看看MySQL这个数据库有哪些表(table):
show tables;
+---------------------------+ | Tables_in_mysql | +---------------------------+ | columns_priv | | db | | event | | func | | general_log | | help_category | | help_keyword | | help_relation | | help_topic | | innodb_index_stats | | innodb_table_stats | | ndb_binlog_index | | plugin | | proc | | procs_priv | | proxies_priv | | servers | | slave_master_info | | slave_relay_log_info | | slave_worker_info | | slow_log | | tables_priv | | time_zone | | time_zone_leap_second | | time_zone_name | | time_zone_transition | | time_zone_transition_type | | user | +---------------------------+ 28 rows in set (0.00 sec)
一共28张表;
9.那么如何进入某一张表呢?
比如user表:
desc user;
+------------------------+-----------------------------------+------+-----+-----------------------+-------+ | Field | Type | Null | Key | Default | Extra | +------------------------+-----------------------------------+------+-----+-----------------------+-------+ | Host | char(60) | NO | PRI | | | | User | char(16) | NO | PRI | | | | Password | char(41) | NO | | | | | Select_priv | enum('N','Y') | NO | | N | | | Insert_priv | enum('N','Y') | NO | | N | | | Update_priv | enum('N','Y') | NO | | N | | | Delete_priv | enum('N','Y') | NO | | N | | | Create_priv | enum('N','Y') | NO | | N | | | Drop_priv | enum('N','Y') | NO | | N | | | Reload_priv | enum('N','Y') | NO | | N | | | Shutdown_priv | enum('N','Y') | NO | | N | | | Process_priv | enum('N','Y') | NO | | N | | | File_priv | enum('N','Y') | NO | | N | | | Grant_priv | enum('N','Y') | NO | | N | | | References_priv | enum('N','Y') | NO | | N | | | Index_priv | enum('N','Y') | NO | | N | | | Alter_priv | enum('N','Y') | NO | | N | | | Show_db_priv | enum('N','Y') | NO | | N | | | Super_priv | enum('N','Y') | NO | | N | | | Create_tmp_table_priv | enum('N','Y') | NO | | N | | | Lock_tables_priv | enum('N','Y') | NO | | N | | | Execute_priv | enum('N','Y') | NO | | N | | | Repl_slave_priv | enum('N','Y') | NO | | N | | | Repl_client_priv | enum('N','Y') | NO | | N | | | Create_view_priv | enum('N','Y') | NO | | N | | | Show_view_priv | enum('N','Y') | NO | | N | | | Create_routine_priv | enum('N','Y') | NO | | N | | | Alter_routine_priv | enum('N','Y') | NO | | N | | | Create_user_priv | enum('N','Y') | NO | | N | | | Event_priv | enum('N','Y') | NO | | N | | | Trigger_priv | enum('N','Y') | NO | | N | | | Create_tablespace_priv | enum('N','Y') | NO | | N | | | ssl_type | enum('','ANY','X509','SPECIFIED') | NO | | | | | ssl_cipher | blob | NO | | NULL | | | x509_issuer | blob | NO | | NULL | | | x509_subject | blob | NO | | NULL | | | max_questions | int(11) unsigned | NO | | 0 | | | max_updates | int(11) unsigned | NO | | 0 | | | max_connections | int(11) unsigned | NO | | 0 | | | max_user_connections | int(11) unsigned | NO | | 0 | | | plugin | char(64) | NO | | mysql_native_password | | | authentication_string | text | YES | | NULL | | | password_expired | enum('N','Y') | NO | | N | | +------------------------+-----------------------------------+------+-----+-----------------------+-------+ 43 rows in set (0.01 sec)
10.对mysql数据库新建一个user:
grant all on test.* to 'alex'@'%' indentified by 'root';
11.查看新建user的权限
show grant for alex
12.创建一个数据库
create database t1db;
13.删除一个数据库
drop database t1db;
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