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MySQL(一)

时间:2021-07-01 10:21:17 帮助过:41人阅读

[root@mysql ~]# mysql -uroot -p #再输入密码 2 Welcome to the MySQL monitor. Commands end with ; or \g. 3 Your MySQL connection id is 4 4 Server version: 5.5.49 MySQL Community Server (GPL) 5 6 Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. 7 8 Oracle is a registered trademark of Oracle Corporation and/or its 9 affiliates. Other names may be trademarks of their respective 10 owners. 11 12 Type help; or \h for help. Type \c to clear the current input statement. 13 14 15 #创建数据库 16 mysql> create database test1; 17 Query OK, 1 row affected (0.02 sec) 18 19 20 #进入test1库中 21 mysql> use test1; 22 Database changed 23 24 #创建表tb1(nid和name字段) 25 mysql> create table tb1(nid int,name varchar(20)); 26 Query OK, 0 rows affected (0.06 sec) 27 28 #创建tb2 (nid和name字段) 29 mysql> create table tb2(nid int,name varchar(20)); 30 Query OK, 0 rows affected (0.01 sec) 31 32 #查看表 33 mysql> show tables; 34 +-----------------+ 35 | Tables_in_test1 | 36 +-----------------+ 37 | tb1 | 38 | tb2 | 39 +-----------------+ 40 2 rows in set (0.01 sec) 41 42 #查看所有表 43 mysql> select * from tb1; 44 Empty set (0.01 sec) 45 46 #往表中插入数据 47 mysql> insert into tb1(nid,name)values(1,alex); 48 Query OK, 1 row affected (0.01 sec) 49 50 #往表中插入数据 51 mysql> insert into tb1(nid,name)values(1,eric); 52 Query OK, 1 row affected (0.01 sec) 53 54 #查看所有表 55 mysql> select * from tb1; 56 +------+------+ 57 | nid | name | 58 +------+------+ 59 | 1 | alex | 60 | 1 | eric | 61 +------+------+ 62 2 rows in set (0.00 sec) 63 64 #退出 65 mysql> exit 66 Bye

 

二、用户授权


用户管理特殊命令:

创建用户
create user ‘用户名‘@‘IP地址‘ identified by ‘密码‘;


删除用户
drop user ‘用户名‘@‘IP地址‘;


修改用户
rename user ‘用户名‘@‘IP地址‘; to ‘新用户名‘@‘IP地址‘;;


修改密码
set password for ‘用户名‘@‘IP地址‘ = Password(‘新密码‘)

 

MySQL(一)

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