本机mysql（mac）_mac本地mysql

1、mysql启动：source ~/.bash_profile，mysql -u root -p password

设置停止和启动mysql简称

cd ~

sudo vim ~/.bash_profile

alias mysqlstart='sudo /usr/local/mysql/support-files/mysql.server start'
alias mysqlstop='sudo /usr/local/mysql/support-files/mysql.server stop'

source ~/.bash_profile

mysqlsop

mysqlstart

2、show databases显示数据库；

use 库名;show tables显示数据表

3、首先输入代码 show variables like 'local_infile'; 查看是否开启本地文件导入权限 若Value为ON 则，本地文件导入权限开启。

否则输入代码 set global local_infile = 1;开启权限。 在workbench database菜单下的连接设置界面，advanced窗口的others里添加以下代 码 OPT_LOCAL_INFILE=1 

show variables like 'local_infile';
set global local_infile = 1;

 在workbench database菜单下的连接设置界面，advanced窗口的others里添加以下代 码 OPT_LOCAL_INFILE=1 

打开还是如此则在manage connections 中添加OPT_LOCAL_INFILE=1 

4、show variables like '%secure%'; 结果发现secure-file-priv为空，此时需要为它配置一个文件夹，处理办法：

打开终端，输入：cd /etc

输入以下代码：sudo vim my.cnf   

• 输入电脑密码
• 输入a，进入编辑模式
• 复制以下代码输入

# 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' 
  secure_file_priv=''
  require_secure_transport=on
  local_infile=on
  skip-grant-tables
# 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

• 点击esc，退出编辑模式
• 输入 :wq （冒号也要），按回车键确定，保存文件
• 输入代码，提升文件权限

sudo chmod 664 /etc/my.cnf

• 输入/etc，前往etc文件夹

  

• 检查my.cnf该文件是否存在于该文件夹中

5、exit 退出mysql，然后重启mysql服务

在mac 下重启mysql的命令如下：

启动MySQL服务

sudo /usr/local/MySQL/support-files/mysql.server start

停止MySQL服务

sudo /usr/local/mysql/support-files/mysql.server stop

重启MySQL服务

sudo /usr/local/mysql/support-files/mysql.server restart

需要输入电脑密码（非mysql密码）

6、重启mysql提升：The server quit without updating PID file (/usr/local/mysql/data/kangyongqingdeMacBook-Pro.local.pid)解决办法：

原因：这是因为苹果在OS X 10.11中引入的SIP特性使得即使加了sudo(也就是具有root权限)也无法修改系统级的目录，其中就包括了/usr/bin。要解决这个问题有两种做法：一种是比较不安全的就是关闭SIP，也就是rootless特性；另一种是将本要链接到/usr/bin下的改链接到/usr/local/bin下就好了。

解决：sudo ln -s /usr/local/mysql/bin/mysql /usr/local/bin

如果提示已存在，新开一个终端窗口，再次尝试，即可。

若提示command not find ，如果期间出现错误, 更多的是权限问题, 把 /usr/local/mysql/data 设置为读写：

sudo chmod -R 777 /usr/local/mysql/data

即可解决无法重启或停止mysql 的问题；

6、再次检查：进入mysql，输入show variables like '%secure%';

7、Mac 修改mysql root密码

①、停止mysql服务

sudo /usr/local/mysql/support-files/mysql.server stop

也可以：通常是在 '系统偏好设置' > MySQL > 'Stop MySQL Server' 但是有时候我操作无效

②、

sudo /usr/local/mysql/bin/mysqld_safe --skip-grant-tables

③、打开另一个新终端，输入:

sudo /usr/local/mysql/bin/mysql -u root

UPDATE mysql.user SET authentication_string=PASSWORD('新密码') WHERE User='root';

FLUSH PRIVILEGES;

\q

④  重启MySQL.
 

8、查询mac上文件位置，打开终端：sudo find / -name my.cnf

9、 调大了 connect_timeout 和 wait_timeout的值 show global variables like '%timeout';

set global INTERACTIVE_TIMEOUT=2880000; set global WAIT_TIMEOUT=2880000;

SQL语句太大了,查看一下允许的最大包大小：

show global variables like 'max_allowed_packet';

value/1024/1024为现在大小，修改参数值为256M（1024*1024*256）

set global max_allowed_packet=1073741824;