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PostgreSQL Crosstab Query
Does any one know how to create crosstab queries in PostgreSQL?
For example I have the following table:
6 Answers
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Flags to enable thorough and verbose g++ warnings
...re present:
I include -Wno-unused because I often have variables that I know I
will use later, but do not yet have the functionality written for.
Removing warnings about that allows me to write in my preferred style
of occasionally deferring the implementation of things. It is useful
to turn that ...
How exactly does __attribute__((constructor)) work?
... on dynamic library load and unload if they existed, but that's deprecated now, replaced by this better mechanism.
– ephemient
Jan 13 '10 at 5:16
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What does enctype='multipart/form-data' mean?
... then you need to start worrying about the format. You might also want to know about it for interest's sake.
application/x-www-form-urlencoded is more or less the same as a query string on the end of the URL.
multipart/form-data is significantly more complicated but it allows entire files to be i...
Titlecasing a string with exceptions
...id not hit your edge case. Ex: titlecase('one 4 two') -> 'One 4 Two'. Now titlecase('1one') -> '1one', but '1one'.title() -> '1One'. though this later case is an edge case and I'm not sure '1One' is the correct titling. I'm also not concerned enough to grab my grammar book.
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CSS center display inline block?
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This question was created before Flexbox but now this approach is better so, I accepted it as the answer.
– Jens Törnell
Mar 19 '18 at 7:32
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UICollectionView Set number of columns
I just started learning about UICollectionViews. I'm wondering if anyone knows how to specify the number of columns in a collectionview. The default is set to 3 (iPhone/portrait). I've looked at the documentation and can't seem to find a concise answer.
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How to handle Handler messages when activity/fragment is paused
... /**
* Store the message if we have been paused, otherwise handle it now.
*
* @param msg Message to handle.
*/
@Override
public final synchronized void handleMessage(Message msg) {
if (activity == null) {
final Message msgCopy = new Message();
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Do zombies exist … in .NET?
... "zombie thread" crashing a system. I routinely use locking and I didn't know what a "zombie thread" was, so I asked. The impression I got from his explanation is that a zombie thread is a thread that has terminated but somehow still holds onto some resources. An example he gave of how a zombie t...
How to set dialog to show in full screen? [closed]
...he dialog, the whole screen is the dialog's background color. Does anyone know of a workaround? I tried setting the statusBarColor of the dialog's window, to no effect. P.S.: navigation bar color gets killed too.
– androidguy
Dec 22 '16 at 8:39
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