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怎么安裝mysql博客 裝MySQL

如何安裝mysql5.7.11 博客

mysql很好安裝吧,現(xiàn)在都用綠色版,打個(gè)對(duì)應(yīng)的mysql驅(qū)動(dòng)后啟動(dòng)服務(wù)就可以用了。可以用navicat或SqlDbx這些圖形界面可視軟件操作。

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centos7怎樣安裝mysql服務(wù)器

本人博客供參考

網(wǎng)頁(yè)鏈接

下載mysql源安裝包shell wget??

安裝mysql源shell yum localinstall mysql57-community-release-el7-8.noarch.rpm?

檢查mysql源是否安裝成功?

yum repolist enabled | grep “mysql.-community.”?

安裝MySQL?

yum install mysql-community-server?

啟動(dòng)MySQL服務(wù)?

shell systemctl start mysqld?

查看MySQL的啟動(dòng)狀態(tài)?

shell systemctl status mysqld?

開(kāi)機(jī)啟動(dòng)?

shell systemctl enable mysqld?

shell systemctl daemon-reload?

修改root本地登錄密碼?

mysql安裝完成之后,在/var/log/mysqld.log文件中給root生成了一個(gè)默認(rèn)密碼。通過(guò)下面的方式找到root默認(rèn)密碼,然后登錄mysql進(jìn)行修改:?

shell grep ‘temporary password’ /var/log/mysqld.log?

shell mysql -uroot -p?

mysql ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘MyNewPass4!’;?

或者:?

mysql set password for ‘root’@’localhost’=password(‘MyNewPass4!’);?

注意:mysql5.7默認(rèn)安裝了密碼安全檢查插件(validate_password),默認(rèn)密碼檢查策略要求密碼必須包含:大小寫(xiě)字母、數(shù)字和特殊符號(hào),并且長(zhǎng)度不能少于8位。否則會(huì)提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements錯(cuò)誤?

添加遠(yuǎn)程登錄用戶?

默認(rèn)只允許root帳戶在本地登錄,如果要在其它機(jī)器上連接mysql,必須修改root允許遠(yuǎn)程連接,或者添加一個(gè)允許遠(yuǎn)程連接的帳戶,為了安全起見(jiàn),我添加一個(gè)新的帳戶:?

mysql GRANT ALL PRIVILEGES ON?.?TO ‘yangxin’@’%’ IDENTIFIED BY ‘Yangxin0917!’ WITH GRANT OPTION;

以上部分個(gè)人實(shí)踐過(guò),以下內(nèi)容待實(shí)踐

數(shù)據(jù)庫(kù)存emoji 表情問(wèn)題

mysql SHOW VARIABLES WHERE Variable_name LIKE ‘character_set_%’ OR Variable_name LIKE ‘collation%’;?

+————————–+——————-+?

| Variable_name | Value |?

+————————–+——————-+?

| character_set_client | utf8 |?

| character_set_connection | utf8 |?

| character_set_database | latin1 |?

| character_set_filesystem | binary |?

| character_set_results | utf8 |?

| character_set_server | latin1 |?

| character_set_system | utf8 |?

| collation_connection | utf8_general_ci |?

| collation_database | latin1_swedish_ci |?

| collation_server | latin1_swedish_ci |?

+————————–+——————-+?

10 rows in set (0.02 sec)?

可以看到我的mysql版本是5.7的,utf8mb4有一個(gè)使用限制,mysql版本必須是5.5以上,大家需要注意,我目前用的ubuntu系統(tǒng)是16.04的。當(dāng)前mysql的字符集配置如上表,我們的目的是更改成utf8mb4。?

3.找到mysql的配置文件,可用命令?

sudo find / -name my.cnf?

我的配置文件位置如下,個(gè)別的位置有所不同?

/etc/mysql/mysql.conf.d/mysqld.cnf

4.修改配置文件?

在原文中添加以下內(nèi)容:?

[client]?

default-character-set = utf8mb4?

[mysql]?

default-character-set = utf8mb4?

[mysqld]?

character-set-client-handshake = FALSE?

character-set-server = utf8mb4?

collation-server = utf8mb4_unicode_ci?

init_connect=’SET NAMES utf8mb4’?

原文件中無(wú)“[client]”和“[mysql]”,需要手動(dòng)添加上。?

……

Here is entries for some specific programs

The following values assume you have at least 32M ram

[client]?

default-character-set = utf8mb4?

[mysql]?

default-character-set = utf8mb4?

[mysqld_safe]?

socket = /var/run/mysqld/mysqld.sock?

nice = 0?

[mysqld]?

#

* Basic Settings

#?

user = mysql?

pid-file = /var/run/mysqld/mysqld.pid?

socket = /var/run/mysqld/mysqld.sock?

port = 3306?

basedir = /usr?

datadir = /var/lib/mysql?

tmpdir = /tmp?

lc-messages-dir = /usr/share/mysql?

skip-external-locking?

character-set-client-handshake = FALSE?

character-set-server = utf8mb4?

collation-server = utf8mb4_unicode_ci?

init_connect=’SET NAMES utf8mb4’?

#

Instead of skip-networking the default is now to listen only on

……

5.重啟mysql服務(wù)?

sudo service mysql restart

6.查看結(jié)果?

mysql SHOW VARIABLES WHERE Variable_name LIKE ‘character_set_%’ OR Variable_name LIKE ‘collation%’;?

ERROR 2006 (HY000): MySQL server has gone away?

No connection. Trying to reconnect…?

Connection id: 3?

Current database:?* NONE *?

+————————–+——————–+?

| Variable_name | Value |?

+————————–+——————–+?

| character_set_client | utf8mb4 |?

| character_set_connection | utf8mb4 |?

| character_set_database | utf8mb4 |?

| character_set_filesystem | binary |?

| character_set_results | utf8mb4 |?

| character_set_server | utf8mb4 |?

| character_set_system | utf8 |?

| collation_connection | utf8mb4_unicode_ci |?

| collation_database | utf8mb4_unicode_ci |?

| collation_server | utf8mb4_unicode_ci |?

+————————–+——————–+?

10 rows in set (0.00 sec)

ubuntu16.04 中怎么安裝mysql

但是按照這篇博客安裝后使用terminal終端沒(méi)法鏈接mysql數(shù)據(jù)庫(kù),也就是沒(méi)法使用mysql -u root -p 命令(但是server已經(jīng)安裝成功),如果各位也遇到這種情況,可以安裝一個(gè)客戶端軟件workbench:

命令: sudo apt-get install mysql-workbench,安裝完成之后再u(mài)buntu里面搜索workbench,即可找到該客戶端軟件。

我下載了wordpress個(gè)人博客的源碼,上傳好后提示要安裝MYSQL數(shù)據(jù)庫(kù),怎么安裝呢?

上傳?

傳到空間么?

你的空間在哪買(mǎi)的?還是你自己的本機(jī)?

如果是買(mǎi)的空間,應(yīng)該有Mysql服務(wù)器的,可能是你沒(méi)開(kāi)通

本機(jī)的話百度一下,去MYSQL的官網(wǎng)上下一個(gè)

那就開(kāi)通,在MYSQL管理那應(yīng)該有MYSQL地址的

然后安裝的時(shí)候把地址輸上就行了。

怎么樣使用yum來(lái)安裝mysql

mysql

yum install mysql mysql-server mysql-devel

啟動(dòng)mysql服務(wù):/etc/init.d/mysqld start

設(shè)置mysql密碼:

直接使用”mysql”進(jìn)入數(shù)據(jù)庫(kù)模式,

mysql USE mysql;

mysql UPDATE user SET Password=PASSWORD(‘newpassword’) WHERE user=’root';

mysql FLUSH PRIVILEGES;

登陸

mysql -u root -p

Enter Password:

創(chuàng)建一個(gè)用戶管理數(shù)據(jù)庫(kù)

mysql create database demo

mysql GRANT ALL PRIVILEGES ON demo.* TO ‘guest’@’localhost’ IDENTIFIED BY ‘guest’ WITH GRANT OPTION;

mysql UPDATE user SET Password=PASSWORD(‘guest’) WHERE user=’guest';

設(shè)置MySQL字符集,vi /etc/my.cnf

#MySQL字符集

default-character-set = utf8

character_set_server = utf8

[client]

default-character-set=utf8

參考:PHP程序員,雷雪松的個(gè)人博客--

CentOS 7.9 安裝MySQL 8.0.26 Community社區(qū)版

localhost為本機(jī)可訪問(wèn),%為所有機(jī)器可訪問(wèn)

參考文章:

CentOS7安裝MySQL8.0圖文教程_閏土的猹猹君的博客-CSDN博客_centos7安裝mysql8.0

Centos7離線安裝mysql8 - 大墨垂楊 - 博客園


文章題目:怎么安裝mysql博客 裝MySQL
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