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芳華Youthred
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MySQL UTF-8 常用字符排序规则
排序规则 解释 utf8_general_ci 不区分大小写 utf8_general_cs 区分大小写 utf8_bin 区分大小写,字符串每个字符串用二进制数据编译存储,且支持存储二进制数据
Posted by youthred on April 15, 2021
Navicat转储SQL文中文数据乱码
用Navicat转储SQL文件,中文数据会这样乱码 1 2 3 4 5 6 7 8 -- ---------------------------- -- Records of sys_permission -- ---------------------------- INSERT INTO `sys_permission` VALUES (1, 'admin:user', '/admin...
Posted by youthred on April 15, 2021
Java生成64bit、32bit的ID
主要就是数字的位运算,这里以32位为例
主要就是数字的位运算,这里以32位为例。 完整代码 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6...
Posted by youthred on April 15, 2021
CentOS6.8 LAMP
配置LAMP运行环境
第一次配置LAMP运行环境,上网查询了很多资料,一边试命令一边学习。服务器重置了很多次。 虽然有OneinStack这个方便的网站一键命令部署,但知道这个网站却是我自己踩坑之后的事情了,故此记录。 1 安装Apache 1 2 3 4 5 6 7 8 yum -y install httpd # 设置开机启动chkconfig --list httpd查看 chkconfig http...
Posted by youthred on April 15, 2021
Centos7下MySQL8彻底卸载及安装
首先升级yum yum update 查看已安装的MySQL 1 2 3 4 5 6 7 [root@centos7 ~]# rpm -qa | grep -i mysql mysql80-community-release-el7-3.noarch mysql-community-client-8.0.22-1.el7.x86_64 mysql-community-common-8.0...
Posted by youthred on April 15, 2021
Demo
Demo post
MD here…
Posted by youthred on January 1, 1970
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