<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[tattonot的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/tattonot</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; tattonot]]></copyright><item><title><![CDATA[计算每天访问次数]]></title><link>https://blog.youkuaiyun.com/tattonot/article/details/103426551</link><guid>https://blog.youkuaiyun.com/tattonot/article/details/103426551</guid><author>tattonot</author><pubDate>Fri, 06 Dec 2019 17:09:32 +0800</pubDate><description><![CDATA[5.7官方文档 300页

章节名：3.6.8 Calculating Visits Per Day
BIT_COUNT()函数 与 BIT_OR()函数

文档原题


计算每天访问次数

CREATE TABLE t1 (year YEAR, month INT UNSIGNED,day INT UNSIGNED);
INSERT INTO t1 VALUES(2000,1,1),(2000,...]]></description><category></category></item><item><title><![CDATA[千金良方-第一章-总结]]></title><link>https://blog.youkuaiyun.com/tattonot/article/details/103023142</link><guid>https://blog.youkuaiyun.com/tattonot/article/details/103023142</guid><author>tattonot</author><pubDate>Tue, 12 Nov 2019 10:33:37 +0800</pubDate><description><![CDATA[1、mysql 初始化 两种方式
（1） mysql_install_db 工具
测试环境下，不可用
（2）mysqld --initialize OR mysqld --initialize-insecure
–initialize 会在日志中产生一个随机密码，可靠次密码进行登录
–initialize-insecure 不会产生随机密码
2、简单安全加固
（1）利用 mysql_secure_...]]></description><category></category></item></channel></rss>