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PostgreSQL query to return results as a comma separated list
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Found this useful just now. Thanks!
– gooddadmike
Aug 13 '13 at 14:15
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Should switch statements always contain a default clause?
...but can't remember what the justification was. It sounds fairly odd to me now.
21 Answers
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putting current class as return type annotation [duplicate]
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So now after a while I can say that decision I took was using -> 'Graph' instead of -> Graph. It does not make my IDE (PyCharm) able to recognize a type this way but it just works well enough for documentation purposes.
A...
Android phone orientation overview including compass
... sensors for a while.
I thought I understood it. Then I realised I didn't. Now I think (hope) I have a better feeling for it again but I am still not 100%. I will try and explain my patchy understanding of it and hopefully people will be able to correct me if I am wrong in parts or fill in any blank...
Converting Long to Date in Java returns 1970
...nt of whole seconds since the same epoch reference of 1970-01-01T00:00Z.
Know Your Data
People use various precisions in tracking time as a number since an epoch. So when you obtain some numbers to be interpreted as a count since an epoch, you must determine:
What epoch?Many epochs dates have been...
Why is it string.join(list) instead of list.join(string)?
...ace UCS2/4. To calculate total buffer length of UTF-8 strings it needs to know character coding rule.
At that time, Python had already decided on a common sequence interface rule where a user could create a sequence-like (iterable) class. But Python didn't support extending built-in types until 2.2....
How to include an '&' character in a bash curl statement
...t showed the URL uses the '&' as a delimeter for the GET variables, so now I am confused, in $[i] you have a piece of data that contains '&'? If that is the case you will need to URL encode it. & = %26
– Matt Clark
Nov 12 '12 at 17:47
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bash assign default value
...stead of the longer LONG_VARIABLE_NAME=${LONG_VARIABLE_NAME:-hello} , but now bash also tries to execute 'hello' and that gives a command not found. Any way to avoid that? Or will I have to stick to the latter? Can someone give an example where the assign default is actually useful?
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To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...ngs. But it will silently keep leaking memory. Not sure if that's good to know after all. Those kind of memory leaks are one of the major causes behind OutOfMemoryError issues during Tomcat hotdeployments.
Move the JDBC driver to Tomcat's /lib folder and have a connection pooled datasource to manage...
What's the strangest corner case you've seen in C# or .NET? [closed]
...ll is redirected to the proxy (MyFunnyProxyAttribute), which returns null. Now go and wash your eyes!
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edited Nov 25 '09 at 12:03
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