时间:2021-05-23
1. 下载RPM安装包, 因为安装MySQL的时候,软件会需要一依赖关系, 所以建议把所有的安装包下载下载, 再依次安装所以的RPM包。
2. 在RedHat下安装后, root密码为空, 设置MySQL的 root密码, 用下面的命令来设置.
[nb@SIT ~]$ mysql -u root -p[newpassword]
3. 修改MySQL的root 密码, 用下面 的命令:
[nb@SIT ~]$ mysqladmin -u root -p[oldpasswrod] password[newpassword]
4. 用root登录MySQL, 输入下面的命令, 再输入密码, 就可以以root的身份登录到MySQL
[nb@SIT ~]$ mysql -u root -p
Enter password:
5. 出现下面的字符, 就表示成功登录到了MySQL,
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 5.5.14 MySQL Community Server (GPL)
Copyright (c) 2000, 2010, 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>
6. 显示当前已经存在的数据库,输入: show databases;
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
7. 创建一个新的数据库, 输入: create database [name];
mysql> create database mytest;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| mytest |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
8. 删除一个已经存在的数据库, 输入: drop database [name];
mysql> drop database mytest;
Query OK, 0 rows affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
9. 创建一张表, 输入: create table [name] [option...]
显示表的内容: describe [table name];
mysql> create table device
-> (
-> id int,
-> pn varchar(8),
-> descript varchar(30)
-> );
Query OK, 0 rows affected (0.01 sec)
mysql> describe device;
+----------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+-------+
| id | int(11) | YES | | NULL | |
| pn | varchar(8) | YES | | NULL | |
| descript | varchar(30) | YES | | NULL | |
+----------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
10. 向表里面添加数据, 输入: insert into [table_name] set option1=[value], option2=[value] ...
mysql> insert into device set id=1,pn="abcd",descript="this is a good device";
Query OK, 1 row affected (0.01 sec)
mysql> insert into device set id=2,pn="efgh",descript="this is a good device";
Query OK, 1 row affected (0.00 sec)
11. 查看表里面的内容, 输入: select [col_name] from [table_name]
mysql> select * from device;
+------+------+-----------------------+
| id | pn | descript |
+------+------+-----------------------+
| 1 | abcd | this is a good device |
| 2 | efgh | this is a good device |
+------+------+-----------------------+
2 rows in set (0.01 sec)
12. 选择性的查询表里的内容, * 是通配符, 表示所有的, 查询单项的时候, 输入: select * from [table_name] where opiont=[value];
mysql> select * from device where id=2;
+------+------+-----------------------+
| id | pn | descript |
+------+------+-----------------------+
| 2 | efgh | this is a good device |
+------+------+-----------------------+
1 row in set (0.00 sec)
13. 选择性查询表里的内容, 输入: select [option]...[option] from [table_name] where [option]=[value];
mysql> select id,descript from device where id=2;
+------+-----------------------+
| id | descript |
+------+-----------------------+
| 2 | this is a good device |
+------+-----------------------+
1 row in set (0.00 sec)
声明:本页内容来源网络,仅供用户参考;我单位不保证亦不表示资料全面及准确无误,也不保证亦不表示这些资料为最新信息,如因任何原因,本网内容或者用户因倚赖本网内容造成任何损失或损害,我单位将不会负任何法律责任。如涉及版权问题,请提交至online#300.cn邮箱联系删除。
RedHat6.5安装MySQL5.7教程分享,供大家参考,具体内容如下安装环境:RedHat6.5第一步:下载下载MySQL5.7:http://dev.my
使用方法mysql>showtablestatus;mysql>showtablestatuslike'esf_seller_history'\G;mysql>
本文实例讲述了mysql定时任务的实现与使用方法。分享给大家供大家参考,具体如下:mysql5.1.6增加了一个事件调度器(EventScheduler),可以
本文实例讲述了MYSQL性能分析器EXPLAIN用法。分享给大家供大家参考,具体如下:使用方法:EXPLAINSELECT*FROMuser;环境和数据准备--
本文将指导你如何在CentOS/RedHat(RHEL)6.2/5.8下使用Yum来搭建LEMPWEB服务器。国内LEMP(Linux,Nginx,MySQL,