一.下載安裝

1.官網下載

下載地址：https://dev.mysql.com/downloads/mysql/

2.找到5.7.31版本

3.選擇直接下載

4.安裝

5.記下資料庫臨時密碼，一路下一步完成安裝

二.配置環境變數

1.在 terminal 中切換到用戶的根目錄，編輯./.bash_profile 檔案

eternity@TheEternitydeMacBook-Pro ~ % cd ~
eternity@TheEternitydeMacBook-Pro ~ % pwd
/Users/eternity
eternity@TheEternitydeMacBook-Pro ~ % vim ./.bash_profile

2.進入 vim，配置 PATH 變數

export PATH=$PATH:/usr/local/mysql/bin
export PATH=$PATH:/usr/local/mysql/support-files
  
備注：
	第一行的是為了 mysql -u root -p 方便使用
  第二行的是為了使用命令列啟動停止資料庫使用

3.按下 esc 退出編輯模式，輸入:wq 保存并退出

:wq

4.重新加載組態檔，并驗證配置是否生效

eternity@TheEternitydeMacBook-Pro ~ % source ~/.bash_profile 
eternity@TheEternitydeMacBook-Pro ~ % echo $PATH 
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin:/usr/local/mysql/support-files
eternity@TheEternitydeMacBook-Pro /etc % mysql --version
mysql  Ver 14.14 Distrib 5.7.31, for macos10.14 (x86_64) using  EditLine wrapper

三.mysql 組態檔

1.在/etc 目錄下新建 my.cnf 組態檔，并賦予讀寫權限

eternity@TheEternitydeMacBook-Pro /etc % sudo touch my.cnf
Password:
eternity@TheEternitydeMacBook-Pro /etc % ls|grep cnf      
my.cnf
eternity@TheEternitydeMacBook-Pro /etc % sudo chmod 777 my.cnf

2.組態檔內容

# Example MySQL config file for medium systems.

#

# This is for a system with little memory (32M - 64M) where MySQL plays

# an important part, or systems up to 128M where MySQL is used together with

# other programs (such as a web server)

#

# MySQL programs look for option files in a set of

# locations which depend on the deployment platform.

# You can copy this option file to one of those

# locations. For information about these locations, see:

# http://dev.mysql.com/doc/mysql/en/option-files.html

#

# In this file, you can use all long options that a program supports.

# If you want to know which options a program supports, run the program

# with the "--help" option.

# The following options will be passed to all MySQL clients

[client]

default-character-set=utf8

#password = your_password

port = 3306

socket = /tmp/mysql.sock

# Here follows entries for some specific programs

# The MySQL server

[mysqld]

character-set-server=utf8

init_connect='SET NAMES utf8

port = 3306

socket = /tmp/mysql.sock

skip-external-locking

key_buffer_size = 16M

max_allowed_packet = 1M

table_open_cache = 64

sort_buffer_size = 512K

net_buffer_length = 8K

read_buffer_size = 256K

read_rnd_buffer_size = 512K

myisam_sort_buffer_size = 8M

character-set-server=utf8

init_connect='SET NAMES utf8'

# Don't listen on a TCP/IP port at all. This can be a security enhancement,

# if all processes that need to connect to mysqld run on the same host.

# All interaction with mysqld must be made via Unix sockets or named pipes.

# Note that using this option without enabling named pipes on Windows

# (via the "enable-named-pipe" option) will render mysqld useless!

#

#skip-networking

# Replication Master Server (default)

# binary logging is required for replication

log-bin=mysql-bin

# binary logging format - mixed recommended

binlog_format=mixed

# required unique id between 1 and 2^32 - 1

# defaults to 1 if master-host is not set

# but will not function as a master if omitted

server-id = 1

# Replication Slave (comment out master section to use this)

#

# To configure this host as a replication slave, you can choose between

# two methods :

#

# 1) Use the CHANGE MASTER TO command (fully described in our manual) -

# the syntax is:

#

# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,

# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;

#

# where you replace <host>, <user>, <password> by quoted strings and

# <port> by the master's port number (3306 by default).

#

# Example:

#

# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,

# MASTER_USER='joe', MASTER_PASSWORD='secret';

#

# OR

#

# 2) Set the variables below. However, in case you choose this method, then

# start replication for the first time (even unsuccessfully, for example

# if you mistyped the password in master-password and the slave fails to

# connect), the slave will create a master.info file, and any later

# change in this file to the variables' values below will be ignored and

# overridden by the content of the master.info file, unless you shutdown

# the slave server, delete master.info and restart the slaver server.

# For that reason, you may want to leave the lines below untouched

# (commented) and instead use CHANGE MASTER TO (see above)

#

# required unique id between 2 and 2^32 - 1

# (and different from the master)

# defaults to 2 if master-host is set

# but will not function as a slave if omitted

#server-id = 2

#

# The replication master for this slave - required

#master-host = <hostname>

#

# The username the slave will use for authentication when connecting

# to the master - required

#master-user = <username>

#

# The password the slave will authenticate with when connecting to

# the master - required

#master-password = <password>

#

# The port the master is listening on.

# optional - defaults to 3306

#master-port = <port>

#

# binary logging - not required for slaves, but recommended

#log-bin=mysql-bin

# Uncomment the following if you are using InnoDB tables

#innodb_data_home_dir = /usr/local/mysql/data

#innodb_data_file_path = ibdata1:10M:autoextend

#innodb_log_group_home_dir = /usr/local/mysql/data

# You can set .._buffer_pool_size up to 50 - 80 %

# of RAM but beware of setting memory usage too high

#innodb_buffer_pool_size = 16M

#innodb_additional_mem_pool_size = 2M

# Set .._log_file_size to 25 % of buffer pool size

#innodb_log_file_size = 5M

#innodb_log_buffer_size = 8M

#innodb_flush_log_at_trx_commit = 1

#innodb_lock_wait_timeout = 50

[mysqldump]

quick

max_allowed_packet = 16M

[mysql]

no-auto-rehash

# Remove the next comment character if you are not familiar with SQL

#safe-updates

default-character-set=utf8

[myisamchk]

key_buffer_size = 20M

sort_buffer_size = 20M

read_buffer = 2M

write_buffer = 2M

[mysqlhotcopy]

interactive-timeout

簡易版

[mysqld]
default-storage-engine=INNODB
character-set-server=utf8
port = 3306

[client]
default-character-set=utf8

3.恢復默認權限

eternity@TheEternitydeMacBook-Pro /etc % ls -l|grep cnf
-rwxrwxrwx   1 root  wheel    4886  8 17 10:09 my.cnf
eternity@TheEternitydeMacBook-Pro /etc % sudo chmod 644 my.cnf
eternity@TheEternitydeMacBook-Pro /etc % ls -l|grep cnf       
-rw-r--r--   1 root  wheel    4886  8 17 10:09 my.cnf

四.兩種啟動 mysql 的方式

1.一鍵啟動，偏好設定下一鍵啟動

①.找到 mysql 服務

②.啟動 mysql

3.啟動完成的狀態

2.命令列啟動

啟動MySQL服務
sudo mysql.server start

停止MySQL服務
sudo mysql.server stop

重啟MySQL服務
sudo mysql.server restart

查看MySQL服務狀態
sudo mysql.server status

備注：

注意：如果出現 ERROR! MySQL server PID file could not be found!，
或者ERROR! The server quit without updating PID file (/usr/local/mysql/data/maxdeMacBook-Pro.local.pid). 
可能是因為沒有/usr/local/mysql/data/檔案夾讀寫權限，如果遇到該問題，
執行sudo chown -R mysql:mysql /usr/local/mysql/data/*即可，

五.初始化配置及修改密碼

eternity@TheEternitydeMacBook-Pro /etc % sudo mysql.server start
Password:
Starting MySQL
.Logging to '/usr/local/mysql/data/TheEternitydeMacBook-Pro.local.err'.
 SUCCESS! 
eternity@TheEternitydeMacBook-Pro /etc % mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 22
Server version: 5.7.31-log

Copyright (c) 2000, 2020, 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> update user set authentication_string=password('123456') where user='root';
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> exit
Bye

六.使用homebrew安裝mysql及遇到的問題

安裝命令
```
brew install mysql
```
安裝完成之后，本地命令列輸入mysql命令，發現無此命令
```
commond not found
```

首先，檢查是否是安裝了

重新執行一遍 
brew install mysql
命令列提示：
Warning: mysql-5.7.10 already installed, it's just not linked

然后網上查找解決方法，最后解決方法是執行：
```
brew link --overwrite mysql
```

但是執行，卻報錯

Linking /usr/local/Cellar/mysql/5.7.10... 
Error: Could not symlink share/man/man8/mysqld.8
/usr/local/share/man/man8 is not writable.

又在網上各種查找解決方法，最后本地實驗以下陳述句執行成功
```
sudo chown -R 'yin' /usr/local
注意： yin是你電腦的用戶名
```

解決了問題后，重新執行：

brew link --overwrite mysql
提示：
Linking /usr/local/Cellar/mysql/5.7.10... 92 symlinks created

心想著，這下算是成功了吧，重新執行:

mysql -u root -p

但是又報錯：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

依次執行：

unset TMPDIR

bash mysql_install_db --verbose --user=root
--basedir="$(brew --prefix mysql)"--datadir=/usr/local/var/mysql --tmpdir=/tmp

接下來啟動mysql
bash mysql.server start

站在巨人肩膀上摘蘋果

https://www.cnblogs.com/nickchen121/p/11145123.html

https://blog.csdn.net/swcxy12315/article/details/84249606

https://www.cnblogs.com/xuyatao/p/6932885.html

https://www.jianshu.com/p/833f388da8e3

轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/193.html

標籤：OS X

上一篇：mac下高效安裝 homebrew 及完美避坑姿勢（親測有效）

下一篇：Mac下安裝Postgresql

Mac下安裝mysql5.7.31

目錄