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Get the new record primary key ID from MySQL insert query?

Let's say I am doing a MySQL INSERT into one of my tables and the table has the column item_id which is set to autoincrement and primary key . ...
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Null vs. False vs. 0 in PHP

...or a data value that doesn't exist in the database or is unknown. See dev.mysql.com/doc/refman/5.0/en/working-with-null.html or en.wikipedia.org/wiki/Null_%28SQL%29. – Eli Dec 5 '12 at 3:39 ...
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How to create a trie in Python

...; _end = '_end_' >>> >>> def make_trie(*words): ... root = dict() ... for word in words: ... current_dict = root ... for letter in word: ... current_dict = current_dict.setdefault(letter, {}) ... current_dict[_end] = _end ... return ...
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NGinx Default public www location?

... have worked with Apache before, so I am aware that the default public web root is typically /var/www/ . 30 Answers ...
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单页web应用(SPA)的简单介绍 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 2.用pushsate记录浏览器的历史,驱动界面发送变化 如何搭建一个基础的SPA 首先,我们画出三个div,它们实际上是作为三个界面存在界面上的,body作为界面外框容器,限制着它们的大小。为了给每个界面配对一个hash地址...
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Get table column names in MySQL?

Is there a way to grab the columns name of a table in mysql? using php 19 Answers 19 ...
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App Inventor 2 列表代码块 · App Inventor 2 中文网

...用给定的变量名称 item 来引用当前列表项。 此处 是有关如何使用该块的教程。 创建过滤列表 通过保持输入列表中的每个项目满足测试来创建一个新列表。 主体是一个布尔表达式,用于检查项目是否通过...
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App Inventor 2 中文网原创内容 · App Inventor 2 中文网

...科普】App Inventor 2 添加超过10个屏幕会怎样? 【算法】如何计算1加到100的总和?(经典循环的写法) 【算法】App Inventor 2 算法之二分算法(Binary Search)实现,快速查找定位 组件用法 【微数据库】每次打开app时保持上一...
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How do MySQL indexes work?

I am really interested in how MySQL indexes work, more specifically, how can they return the data requested without scanning the entire table? ...
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How to use MySQL DECIMAL?

I can't quite get a grasp of MySQL's DECIMAL. I need the row to be able to contain a number anywhere from 00.0001 to 99.9999. How would I structure it to work like so? ...