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MySQL “WITH” clause
...eature request for MySQL since January 2006: http://bugs.mysql.com/bug.php?id=16244
Other RDBMS products that support common table expressions:
Oracle 9i release 2 and later:
http://www.oracle-base.com/articles/misc/with-clause.php
Microsoft SQL Server 2005 and later:
http://msdn.microsoft.com/en-u...
HTTP status code for update and delete?
...hat should be the HTTP status code is the request sent by the client is valid (DELETE mySite/entity/123) and the entity to delete does not exist.
– Martin
Dec 30 '11 at 21:27
69
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Server is already running in Rails
...command it is showing A server is already running. Check C:/Sites/folder/Pids/Server.pids
14 Answers
...
What is the best way to implement nested dictionaries?
...is the best way to implement nested dictionaries in Python?
This is a bad idea, don't do it. Instead, use a regular dictionary and use dict.setdefault where apropos, so when keys are missing under normal usage you get the expected KeyError. If you insist on getting this behavior, here's how to shoo...
HTML5 Email Validation
It is said "With HTML5, we need no more js or a server side code to check if the user's input is a valid email or url address"
...
How to delete a file from SD card?
...delete all inner childs.See my answer below..
– AndroidGeek
May 15 '14 at 7:56
2
Unfortunately th...
Python != operation vs “is not”
...
== is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.)
is is an identity test. It checks whether the right hand side and the left hand side are the very same object. No methodcalls are d...
Comparing date ranges
...example, you can see that it matches those two rules.
You will need to decide wether the following periods are IN or OUTSIDE your ranges:
|-------------|
|-------| equal end with start of comparison period
|-----| equal start with end ...
Using CSS for a fade-in effect on page load
...n {
from { opacity: 0; }
to { opacity: 1; }
}
Demo
http://jsfiddle.net/SO_AMK/VV2ek/
Browser Support
All modern browsers and Internet Explorer 10 (and later): http://caniuse.com/#feat=css-animation
Method 2:
Alternatively, you can use jQuery (or plain JavaScript; see the third...
How can I set the default value for an HTML element?
...lect> element below would cause the <option> containing my provided "value" to be selected by default:
27 Ans...