scp'/root/桌面/数据库/mysql-5.7.17-1.el7.x86_64.rpm-bundle.tar' [email protected]:/root
[root@rootroom9pc01~]# vim /etc/bashrc
[root@rootroom9pc01~]# . /etc/bashrc
[root@rootroom9pc01~]# host50
[email protected]'spassword:
Lastlogin: Wed Jun 13 17:39:37 2018 from 192.168.4.254
[root@host50~]# tar -xf mysql-5.7.17-1.el7.x86_64.rpm-bundle.tar
[root@host50~]# ls *.rpm
装包
rpm-Uvh mysql-community-*.rpm
yum-y install perl-JSON
rpm-Uvh mysql-community-*.rpm
ls
rm-rf mysql-community-server-minimal-5.7.17-1.el7.x86_64.rpm
rpm-Uvh mysql-community-*.rpm
[root@host50 ~]# rpm-qa | grep -i mysql -i 忽略大小写
修改配置文件 /etc/my.cnf
Systemctlstatus mysqld
/usr/lib/systemd/system/mysqld.service
数据库目录 /var/lib/mysql
[root@host50mysql]# systemctl start mysqld
[root@host50mysql]# ls
auto.cnf ib_buffer_pool mysql public_key.pem
ca-key.pem ibdata1 mysql.sock server-cert.pem
ca.pem ib_logfile0 mysql.sock.lock server-key.pem
client-cert.pem ib_logfile1 performance_schema sys
client-key.pem ibtmp1 private_key.pem
[root@host50mysql]# systemctl enable mysqld
[root@host50mysql]# systemctl status mysqld
默认端口号：3306
进程名：mysqld ps -C mysqld
[root@host50mysql]# ps -C mysqld
[root@host50mysql]# netstat -utnlp | grep mysqld
[root@host50mysql]# netstat -utnlp | grep :3306
传输协议 TCP
[root@host50mysql]# ps aux | grep mysqld
mysql 2236 0.0 16.9 1119216 171844 ? Sl 10:22 0:00/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
root 2353 0.0 0.0 112676 984 pts/0 R+ 10:29 0:00 grep--color=auto mysqld
[root@host50mysql]# grep mysql /etc/passwd
mysql:x:27:27:MySQLServer:/var/lib/mysql:/bin/false
[root@host50mysql]# grep mysql /etc/group
mysql:x:27:
[root@host50mysql]# ls -ld /var/lib/mysql
drwxr-x--x.5 mysql mysql 4096 6月 1410:22 /var/lib/mysql
[root@host50mysql]# ll
总用量122952
-rw-r-----.1 mysql mysql 56 6月 1410:21 auto.cnf
-rw-------.1 mysql mysql 1679 6月 1410:22 ca-key.pem
-rw-r--r--.1 mysql mysql 1074 6月 1410:22 ca.pem
-rw-r--r--.1 mysql mysql 1078 6月 1410:22 client-cert.pem
-rw-------.1 mysql mysql 1679 6月 1410:22 client-key.pem
-rw-r-----.1 mysql mysql 413 6月 1410:22 ib_buffer_pool
-rw-r-----.1 mysql mysql 12582912 6月 1410:22 ibdata1
-rw-r-----.1 mysql mysql 50331648 6月 1410:22 ib_logfile0
-rw-r-----.1 mysql mysql 50331648 6月 1410:21 ib_logfile1
-rw-r-----.1 mysql mysql 12582912 6月 1410:22 ibtmp1
drwxr-x---.2 mysql mysql 4096 6月 1410:21 mysql
srwxrwxrwx.1 mysql mysql 0 6月 1410:22 mysql.sock
-rw-------.1 mysql mysql 5 6月 1410:22 mysql.sock.lock
drwxr-x---.2 mysql mysql 8192 6月 1410:21 performance_schema
-rw-------.1 mysql mysql 1675 6月 1410:22 private_key.pem
-rw-r--r--.1 mysql mysql 451 6月 1410:22 public_key.pem
-rw-r--r--.1 mysql mysql 1078 6月 1410:22 server-cert.pem
-rw-------.1 mysql mysql 1675 6月 1410:22 server-key.pem
drwxr-x---.2 mysql mysql 8192 6月 1410:22 sys
Rm-rf *.rpm
Tar-xvf xxx.tar
Rm-rf mysql-connunity-server-minimal-5.7.17-1.el7.x86_64.rpm
Yum-y install perl-JSON
Rpm-Uvh mysql-community-*.rpm
Systemctlstart mysqld
[root@host50mysql]# systemctl status mysqld
[root@host50mysql]# ps -C mysqld
PIDTTY TIME CMD
2236? 00:00:01 mysqld
[root@host50mysql]# ss -utnlp | grep :3306
tcp LISTEN 0 80 :::3306 :::* users:(("mysqld",pid=2236,fd=22))
Php java
Nginx apache tomcat
LNMP LAMP
Mysql Mongodb
游戏 购物 论坛 金融
MySQL-5.7
把数据存储到数据库服务器上的过程
1连接数据库服务器 （命令连接 图形工具）
Mysql-hlocalhost -uroot -p密码
初始密码在：Ls/var/log/mysqld.log
Grep-i password /var/log/mysqld.log
2选择库 （文件夹）
3建表
4插入记录 （行）
5断开连接
RDBMS关系型数据库
Rpm-qa | grep -i mysql
[root@host50mysql]# rpm -qa |grep -i mysql
mysql-community-client-5.7.17-1.el7.x86_64
[root@host50mysql]# which mysql
/usr/bin/mysql
[root@host50mysql]# rpm -qf /usr/bin/mysql
mysql-community-client-5.7.17-1.el7.x86_64
[root@host51mysql]# rpm -qf /bin/mysql
mysql-community-client-5.7.17-1.el7.x86_64
[root@host50mysql]# grep -i password /var/log/mysqld.log
2018-06-14T02:21:42.501465Z1 [Note] A temporary password is generated for root@localhost:Cw5Hfukhjt<t
[root@host50mysql]# mysql -hlocalhost -uroot -p'Cw5Hfukhjt<t'
Ctrl+L
\q
Quit;
SQL:结构化查询命令
mysql>show databases;
ERROR1820 (HY000): You must reset your password using ALTER USER statementbefore executing this statement.
Setglobal validate_password_policy=0; 验证策略
Setglobal validate_password_length=6; 密码验证
Alteruser root@”localhost” identified by “123456”;
Showdatabases;
Information_schema 虚拟库
Createdatabase db1;
Cd/var/lib/mysql
[root@rootroom9pc01~]# host51
[email protected]'spassword:
[root@rootroom9pc01~]# host50
[email protected]'spassword:
Lastlogin: Thu Jun 14 09:42:47 2018 from 192.168.4.254
[root@host50~]# ls /var/lib/mysql
auto.cnf db1 ibtmp1 private_key.pem
ca-key.pem ib_buffer_pool mysql public_key.pem
ca.pem ibdata1 mysql.sock server-cert.pem
client-cert.pem ib_logfile0 mysql.sock.lock server-key.pem
client-key.pem ib_logfile1 performance_schema sys
[root@host50~]#
永久生效
Vim/etc/my.cnf
[mysqld]
validate_password_policy=0
validate_password_length=6
Systemctlstop mysqld
Systemctlstart mysqld
Systemctlstatus mysqld
[root@host50~]# mysql -hlocalhost -uroot -p123456
Showdatabases; 显示已有的库
Use库名；
Selectdatabase(); 显示当前所在的库
Createdatabase 库名；
Dropdatabase 库名；
Createt1(
Namechar(15);
Classchar(7)
);
mysql>desc t1;
Select* from c1;
Insertinto t1 values(“cuihzhiwei”,”nsd1803”),(“bob”,”nsd1803”);
Updatet1 set class=”nsd1809”;
Deletefrom t1;
Droptable t1;
createtable 学生信息表2(姓名 char(15),班级 char(7)) DEFAULTCHARSET=utf8;
QueryOK, 0 rows affected (0.26 sec)
mysql>insert into 学生信息表2values("崔志伟","nsd1802");
mysql>show create table 学生信息表2;
+------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|Table | Create Table |
+------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|学生信息表2 | CREATE TABLE `学生信息表2`(
`姓名`char(15) DEFAULT NULL,
`班级`char(7) DEFAULT NULL
)ENGINE=InnoDB DEFAULT CHARSET=utf8 |
+------------------+------------------------------------------------------------------------------------------------------------------------------------------+
1row in set (0.00 sec)
mysql>
Createtable db1.t2(
Leveltinyint
);
Insertinto t2 values(251);
Createtable db1.t3(
Leveltinyint unsigned
);
Insertinto t3 values(256);
Createtable db1.t4(
Paydouble(5,2)
);
Createtable t5(
Namechar(15),
Emailvarchar(30)
);
Insertinto t5 values(“bob”,”[email protected]”),(“lucy”,”[email protected]”);
Insertinto t5 values(“pangliing8888888888888888888”,”[email protected]”);
Createtable t6(
Namechar(15),
Agetinyint unsigned,
Payfloat(7,2),
Sexenum(“boy”,”girl”,”no”),
Likesset(“woman”,”money”,”game”,”eat”)
);
mysql>desc t6
->;
+-------+-----------------------------------+------+-----+---------+-------+
|Field | Type | Null | Key | Default |Extra |
+-------+-----------------------------------+------+-----+---------+-------+
|Name | char(15) | YES | | NULL | |
|Age | tinyint(3) unsigned | YES | | NULL | |
|Pay | float(7,2) | YES | | NULL | |
|Sex | enum('boy','girl','no') | YES | | NULL | |
|Likes | set('woman','money','game','eat') | YES | | NULL | |
+-------+-----------------------------------+------+-----+---------+-------+
5rows in set (0.00 sec)
insertinto t6 values("bob",21,20000,"no","eat,game");
insertinto t6 values("bob1",21,20000,"man","eat,game");
insertinto t6 values("bob2",21,20000,"boy","eat,game");
insertinto t6 values("bob",21,20000,"1","eat,game");
mysql>create table t7(
->name char(15),
->syear year,
->birthday date,
->up_class time,
->party datetime
->);
QueryOK, 0 rows affected (0.44 sec)
mysql>desc t7;
+----------+----------+------+-----+---------+-------+
|Field | Type | Null | Key | Default | Extra |
+----------+----------+------+-----+---------+-------+
|name | char(15) | YES | | NULL | |
|syear | year(4) | YES | | NULL | |
|birthday | date | YES | | NULL | |
|up_class | time | YES | | NULL | |
|party | datetime | YES | | NULL | |
+----------+----------+------+-----+---------+-------+
5rows in set (0.00 sec)
mysql>insert into t7 values("yaya",1990,20181120,083000,20180618213000);
QueryOK, 1 row affected (0.08 sec)
mysql>select * from t7;
+------+-------+------------+----------+---------------------+
|name | syear | birthday | up_class | party |
+------+-------+------------+----------+---------------------+
|yaya | 1990 | 2018-11-20 | 08:30:00 | 2018-06-18 21:30:00 |
+------+-------+------------+----------+---------------------+
1row in set (0.00 sec)
mysql>
mysql>insert into t7 values("yaya",53,20181120,083000,20181118213000);
QueryOK, 1 row affected (0.04 sec)
mysql>insert into t7 values("yaya",1953,20181120,083000,20181118213000);
QueryOK, 1 row affected (0.04 sec)
mysql>
mysql>select * from t7;
+------+-------+------------+----------+---------------------+
|name | syear | birthday | up_class | party |
+------+-------+------------+----------+---------------------+
|yaya | 1990 | 2018-11-20 | 08:30:00 | 2018-06-18 21:30:00 |
|yaya | 2053 | 2018-11-20 | 08:30:00 | 2018-11-18 21:30:00 |
|yaya | 1953 | 2018-11-20 | 08:30:00 | 2018-11-18 21:30:00 |
+------+-------+------------+----------+---------------------+
3rows in set (0.00 sec)
mysql>