mysql创建数据库指定字符集

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最新推荐文章于 2025-06-19 19:43:12 发布

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分类专栏： mysql

本文链接：https://blog.youkuaiyun.com/now19930616/article/details/104324635

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本文详细介绍了MySQL数据库的创建与表结构定义，包括使用UTF8MB4字符集和相关配置参数调整，如最大连接数设置，以及服务器启动时的字符集和校对规则指定。

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CREATE DATABASE IF NOT EXISTS db02 DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS `user` (
  `id` INT (11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR (20) CHARACTER SET latin1 DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE = INNODB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_unicode_ci

linux 字符配置文件

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
[client]
default-character-set=utf8mb4
[mysql]
default-character-set=utf8mb4
[mysqld]
#
# 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
lower_case_table_names=1
max_connections=1000

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

validate_password=off

character-set-server=utf8mb4
collation-server=utf8mb4_unicode_ci
init_connect='SET NAMES utf8mb4'