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30岁之后，程序员该向什么方向发展？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...怕什么？
QA&3. 专注coding还是走向管理，程序员职场规划如何抉择？
严清：
我是选择了偏向 coding，但还是要做一定管理，我要带领小伙伴们提升技术，要推进公司的技术水平，这些还是需要管理的。可以说是管理技术不管产...
Which is more efficient: Multiple MySQL tables or one large table?
I store various user details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tabl...
How do I return rows with a specific value first?
...L Server, but that's because the syntax is non-standard and only works for MySQL. When using a CASE statement (which is standard SQL) SQL Server can very well use an expression in the ORDER BY clause. "too stupid to process equivalency tests" is simply wrong. If at all it should read: "does not supp...
MySQL Great Circle Distance (Haversine formula)
...script that gets Longitude and Latitude values and then inputs them into a MySQL query. I'd like to make it solely MySQL. Here's my current PHP Code:
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PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
...a pure UTF-8 stack all the way through to your database. I have been using MySQL's utf8mb4 encoding for tables, fields, and connections.
My situation boiled down to "I just want my sanitizers, validators, business logic, and prepared statements to deal with UTF-8 when data comes from HTML forms, or...
领域驱动设计系列（二）:领域Model？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...易让大家搞糊涂。 我觉得先抛开这些概念，后面再来说如何设计聚合，先简单来说。
模型
过去，我们在多层设计里定义了很多Model, 数据库的Model(DB Entity), 然后为了不依赖数据库，我们有设计了业务的Domain Model, 同时我们又设...
MySQL's now() +1 day
I'm using now() in MySQL query.
4 Answers
4
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Find rows that have the same value on a column in MySQL
... created what was essentially infinite recursion or something on mysql resulting in a dead database due to "too many connections" :-/
– huygir
Mar 5 '18 at 17:40
add...
不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tp.zebra.org/pub/zebra/zebra-0.95a.tar.gz 2、安装过程安装过程
[root@RS1 mnt]# gunzip zebra-0.95a.tar.gz
[root@RS1 mnt]# tar xvf zebra-0.95a.tar
会在当前目录下自动生成一个zebra-0.95a子目录，进入zebra-0.95a目录后执行以下命令安装
[root@RS1 zebra-0.95a]# ./co...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
...to the admin side of DBMS and was setting up a new database tonight (using MySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like
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