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Count(*) vs Count(1) - SQL Server
... values. If one or more null values are
eliminated, then a completion condition is raised: warning-
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How to obtain the number of CPUs/cores in Linux from the command line?
...iq | awk '{print $4}'
which should return (for example) 8 (whereas the command above would return 16)
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Can I invoke an instance method on a Ruby module without including it?
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community wiki
2 revsdgtized
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How do I animate constraint changes?
... need to call layoutIfNeeded within the animation block. Apple actually recommends you call it once before the animation block to ensure that all pending layout operations have been completed
You need to call it specifically on the parent view (e.g. self.view), not the child view that has the con...
Performance differences between debug and release builds
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The C# compiler itself doesn't alter the emitted IL a great deal in the Release build. Notable is that it no longer emits the NOP opcodes that allow you to set a breakpoint on a curly brace. The big one is the optimizer that's bui...
Good tutorials on XMPP? [closed]
...at least it's technical: https://web.archive.org/web/20170916193014/http://www.adarshr.com/fun-with-xmpp-and-google-talk and the second part, https://web.archive.org/web/20171005104211/http://www.adarshr.com:80/fun-with-xmpp-and-google-talk-part-2
It explains what stanzas are, what types are availa...
.htm vs .html ? Which file extension naming is more correct? [closed]
...ince file extensions are typically 3 characters long.
AND MORE ON: http://www.sightspecific.com/~mosh/WWW_FAQ/ext.html or http://www.sightspecific.com/~mosh/WWW_FAQ/ext.htm
I think I should add this part here:
There is one single slight difference between .htm and .html files. Consider a path in ...
The model used to open the store is incompatible with the one used to create the store
...ES, NSInferMappingModelAutomaticallyOption:@YES} (actually provided in the commented code in that method)
Here you go, have fun!
P.S. This only applies for lightweight migration. For your migration to qualify as a lightweight migration, your changes must be confined
to this narrow band:
Add or r...
Passing Objects By Reference or Value in C#
...urse C# has pointers and custom value types, which makes it all a bit more complicated than in Java.
– Jon Skeet
Jun 3 '15 at 7:17
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