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Finding the number of days between two dates
...also hour-minute-second; same happpens with DATE type in databases such as MySQL), the widely used formula
(unix_timestamp(DATE2) - unix_timestamp(DATE1)) / 86400
or
floor(time() - strtotime($somedate)) / 86400
will return, say, 17 when DATE1 and DATE2 are in the same DST segment of the year...
How to think in data stores instead of databases?
...ays but when it comes to google products except google cloud SQL (which is mySQL) everything else is NoSQL.
How to get the text node of an element?
...w"), and iterate over just the text node children of the element.
var root = document.querySelector('p'),
iter = document.createNodeIterator(root, NodeFilter.SHOW_TEXT),
textnode;
// print all text nodes
while (textnode = iter.nextNode()) {
console.log(textnode.textContent)
}
...
How can I color Python logging output?
...install()
> logging.info("It works!")
2014-07-30 21:21:26 peter-macbook root[7471] INFO It works!
The default log format shown in the above example contains the date, time, hostname, the name of the logger, the PID, the log level and the log message. This is what it looks like in practice:
N...
Defining custom attrs
...lement. If I'm going to use an attr in more than one place I put it in the root element. Note, all attributes share the same global namespace. That means that even if you create a new attribute inside of a <declare-styleable> element it can be used outside of it and you cannot create another a...
What is the difference between an Azure Web Site and an Azure Web Role
..., (like WordPress, Joomla, Django, MediaWiki, etc.)
Use of SQL Database or MySQL
Simple and fast to scale from free tier to shared tier to dedicated tier
Web Jobs
Backups of Web Site content
Built-in web-based debugging tools (simple cmd/powershell debug console, process explorer, diagnostic tools l...
In Django, how does one filter a QuerySet with dynamic field lookups?
...ed on a poor design is more expensive and complex than necessary. Solving root-cause problems is better than solving other problems that stem from bad design decisions. I'm sorry you don't like root-cause analysis. But when something's really hard, it usually means you're trying the wrong thing t...
通信连接组件 · App Inventor 2 中文网
...
更多有关Activity启动器使用技巧请查看《Activity启动器如何查看并启动其他App》。
属性
Action
指定将用于启动Activity活动的操作。
Activity类名
指定将启动的特定组件的Class类部分。
Activity包名
指定将启动的特定组件...
Why can't I use Docker CMD multiple times to run multiple services?
...empts to stop a running container first by sending a SIGTERM signal to the root process (PID 1) in the container." Which process is docker tracking as PID 1 that will get the SIGTERM? Will it be SSH or Rabbit?? "According to the Unix process model, the init process -- PID 1 -- inherits all orphaned ...
Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
...ed a new site on a complete Sun open source stack (OpenSolaris, GlassFish, MySQL) and it was a great experience with only minor frustrations.
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