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Insert, on duplicate update in PostgreSQL?
...mple 38-2. Exceptions with UPDATE/INSERT
This example uses exception handling to perform either UPDATE or INSERT, as appropriate:
CREATE TABLE db (a INT PRIMARY KEY, b TEXT);
CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS
$$
BEGIN
LOOP
-- first try to update the key...
How to Test Facebook Connect Locally
I use ASP .NET and Facebook Connect APIs. but when I run the app and press Connect button it's return to the Website not to the test local server which is ( http://localhost:xxxx/test.aspx )
So how I can test Facebook locally (i.e How I can change the callback url) ?
...
Website screenshots
...eally want to only use php, I suggest you HTMLTOPS, which renders the page and outputs it in a ps file (ghostscript), then, convert it in a .jpg, .png, .pdf.. can be little slower with complex pages (and don't support all the CSS).
Else, you can use wkhtmltopdf to output a html page in pdf, jpg, wh...
Joda-Time: what's the difference between Period, Interval and Duration?
... are defined e.g. this might be the interval between 20:00:00GMT yesterday and 09:00:00GMT this morning.
A duration in Joda-Time represents a duration of time measured in milliseconds. The duration is often obtained from an interval. i.e. we can subtract start from end of an interval to derive a du...
Scala: What is a TypeTag and how do I use it?
...hat they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
...
C++: What is the size of an object of an empty class?
... It surely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object?
...
Service Reference Error: Failed to generate code for the service reference
I have a Windows Service Solution and am trying to add a service reference to a Hermes(Opensource ebms message server) Web Service in VS2010.
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Valid to use (anchor tag) without href attribute?
I've been using Twitter Bootstrap to build a site, and a lot of its functionality depends on wrapping things in <a> , even if they're just going to execute Javascript. I've had problems with the href="#" tactic that Bootstrap's documentation recommends, so I was trying to find a different s...
Strip spaces/tabs/newlines - python
...lied: runs of consecutive whitespace are regarded as a single
separator, and the result will contain no empty strings at the start
or end if the string has leading or trailing whitespace.
Demo:
>>> myString.split()
['I', 'want', 'to', 'Remove', 'all', 'white', 'spaces,', 'new', 'line...
How to set -source 1.7 in Android Studio and Gradle
I'm getting following error when trying to compile my project in Android Studio:
8 Answers
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