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PHP学习必看的一些书 - IT书籍推荐 - 清泛网 - 专注C/C++及内核技术
...不错，对于框架介绍和开发来说
数据库相关（主要是Mysql）
《MySQL必知必会》 –极好的MySQL语法参考书
《深入浅出MySQL——数据库开发、优化与管理维护》 –很多实用的MySQL技巧
《MySQL性能调优与架构设计》 –关...
PHP学习必看的一些书 - PHP - 清泛IT论坛，有思想、有深度
...还不错，对于框架介绍和开发来说
数据库相关（主要是Mysql）《MySQL必知必会》 –极好的MySQL语法参考书《深入浅出MySQL——数据库开发、优化与管理维护》 –很多实用的MySQL技巧《MySQL性能调优与架构设计》 –关于很多架构和...
Dropping Unique constraint from MySQL table
How can I drop the "Unique Key Constraint" on a column of a MySQL table using phpMyAdmin?
10 Answers
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Is it a good idea to index datetime field in mysql?
...etime clause to select data. Is it a good idea to index datetime fields in mysql database?
2 Answers
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MySQL date format DD/MM/YYYY select query?
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You can use STR_TO_DATE() to convert your strings to MySQL date values and ORDER BY the result:
ORDER BY STR_TO_DATE(datestring, '%d/%m/%Y')
However, you would be wise to convert the column to the DATE data type instead of using strings.
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JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区，...
...了的东西，比如tomcat里的servlet就是线程，没有线程我们如何提供多用户访问呢？不过很多刚开始接触线程的开发攻城师却在这个上面吃了不少苦头。怎么做一套简便的线程开发模式框架让大家从单线程开发快速转入多线程开发...
Create a CSV File for a user in PHP
I have data in a MySQL database. I am sending the user a URL to get their data out as a CSV file.
19 Answers
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How to get the mysql table columns data type?
I want to get the column data type of a mysql table.
11 Answers
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Best data type for storing currency values in a MySQL database
What is the best SQL data type for currency values? I'm using MySQL but would prefer a database independent type.
9 Answer...
How to install trusted CA certificate on Android device?
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Prior to Android KitKat you have to root your device to install new certificates.
From Android KitKat (4.0) up to Nougat (7.0) it's possible and easy. I was able to install the Charles Web Debbuging Proxy cert on my un-rooted device and successfully sniff SSL ...