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How to concatenate columns in a Postgres SELECT?
...xt):
SELECT a::text || b AS ab FROM foo;
Judging from your own answer, "does not work" was supposed to mean "returns NULL". The result of anything concatenated to NULL is NULL. If NULL values can be involved and the result shall not be NULL, use concat_ws() to concatenate any number of values (Po...
Why would a post-build step (xcopy) occasionally exit with code 2 in a TeamCity build?
...you provide the /Y switch with xcopy, you'll still get an error when xcopy doesn't know if the thing you are copying is a file or a directory. This error will appear as "exited with code 2". When you run the same xcopy at a command prompt, you'll see that xcopy is asking for a response of file or di...
What kinds of patterns could I enforce on the code to make it easier to translate to another program
... starting with some piece of technology with which they are familiar, that does a part of the job. (Python ASTs are great example). The good news, is that part of the job is done. The bad news is that machinery has a zillion assumptions built into it, most of which you won't discover until you try...
Removing all unused references from a project in Visual Studio projects
...esharper/webhelp/Refactorings__Remove_Unused_References.html
This feature does not correctly handle:
Dependency injected assemblies
Dynamically loaded assemblies (Assembly.LoadFile)
Native code assemblies loaded through interop
ActiveX controls (COM interop)
Other creative ways of loading assembl...
Accept server's self-signed ssl certificate in Java client
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Option 2
Disable Certificate Validation:
// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] {
new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new X5...
What is the difference between google tag manager and google analytics?
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does stuff like this still work then when placed in the code of my website: ga('send', 'event', { eventCategory: 'Form', eventAction: 'Subscribtion',eventLabel: 'Subscribtion [name]'});
– Meddie
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How do I purge a linux mail box with huge number of emails? [closed]
...nswered Aug 16 '11 at 9:38
EdoDodoEdoDodo
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Cannot hide status bar in iOS7
...eta version. Now when I run my app from Xcode 5 on this iPhone, status bar doesn’t hide, even though it should.
26 Answer...
Remove last character of a StringBuilder?
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Apache Commons does have another alternative to Guava's Joiner too in their StringUtils. commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/…, java.lang.String)
– GoRoS
Sep 28 '13 at 16:50
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What is HTML5 ARIA?
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Note the role attribute on the outer <ul> element. This attribute does not affect in any way how the markup is rendered on the screen by the browser; however, browsers that support ARIA will add OS-specific accessibility information to the rendered UI element, so that the screen reader can ...