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Return a value if no rows are found in Microsoft tSQL
...thing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
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Paste in insert mode?
...lipboard
CTRL-R " (the unnamed register) inserts the last delete or yank.
To find this in vim's help type :h i_ctrl-r
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How to fully remove Xcode 4
I want to remove all existing SDK versions as well as Xcode 4.
7 Answers
7
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check android application is in foreground or not? [duplicate]
...f answers for this question.But it's all about single activity..How to check whether the whole app is running in foreground or not ?
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Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
First off, it may seem that I'm asking for subjective opinions, but that's not what I'm after. I'd love to hear some well-grounded arguments on this topic.
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Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...f_t arguments, Visual C++ for instance use %Iu and %Id respectively, I think that gcc will allow you to use %zu and %zd.
You could create a macro:
#if defined(_MSC_VER) || defined(__MINGW32__) //__MINGW32__ should goes before __GNUC__
#define JL_SIZE_T_SPECIFIER "%Iu"
#define JL_SSIZE_T_SPE...
What is the difference between Java RMI and RPC?
...ed into a server, in RMI you can have references to remote objects and invoke their methods, and also pass and return more remote object references that can be distributed among many JVM instances, so it's much more powerful.
RMI stands out when the need to develop something more complex than a pur...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
...u don't need to locate the user if you only need their country. You can look their IP address up in any IP-to-location service (like maxmind, ipregistry or ip2location). This will be accurate most of the time.
If you really need to get their location, you can get their lat/lng with that method, the...
How to export collection to CSV in MongoDB?
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@karoly-horvath has it right. Fields are required for csv.
According to this bug in the MongoDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not c...
Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's prototype contains additional properties for the object which are techni...