Mysql

install

docker

version: '3'
services:
  mysql:
    image: mysql:8
    container_name: mysql8
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: Mysql@2023
    ports:
      - "3306:3306"
    volumes:
      - ./data:/var/lib/mysql
      - ./my.cnf:/etc/my.cnf

使用

• 执行sql文件

ALERT TABLE Statement

alter table tbl_name add [COLUMN] (col_name column_definition,...)

日期函数

函数	说明
DATE_SUB(NOW(), INTERVAL 3 MONTH)	三个月

my.conf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.1/en/server-configuration-defaults.html

[mysqld]
#skip-grant-tables
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

# Remove leading # to revert to previous value for default_authentication_plugin,
# this will increase compatibility with older clients. For background, see:
# https://dev.mysql.com/doc/refman/8.1/en/server-system-variables.html#sysvar_default_authentication_plugin
# default-authentication-plugin=mysql_native_password
skip-host-cache
skip-name-resolve
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
secure-file-priv=/var/lib/mysql-files
user=mysql

pid-file=/var/run/mysqld/mysqld.pid
[client]
socket=/var/run/mysqld/mysqld.sock

!includedir /etc/mysql/conf.d/