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Return a value if no rows are found in Microsoft tSQL
Using a Microsoft version of SQL, here's my simple query. If I query a record that doesn't exist then I will get nothing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
...
Why isn't ProjectName-Prefix.pch created automatically in Xcode 6?
...ting macros unless there is no other way (such as when you need __FILE__). If you do need macros, put them in a header and include it.
The prefix header was necessary for things that are huge and used by nearly everything in the whole system (like Foundation.h). If you have something that huge and ...
How to obtain the number of CPUs/cores in Linux from the command line?
...t both of these will end up counting twice as many cores as actually exist if you're on a system with hyperthreading (e.g, P4, or Core i7).
– duskwuff -inactive-
Jun 26 '11 at 0:04
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How do I pass parameters into a PHP script through a webpage?
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$argument1 = $_GET['argument1'];
$argument2 = $_GET['argument2'];
?>
If you want the script to run regardless of where you call it from (command line or from the browser) you'll want something like the following:
EDIT: as pointed out by Cthulhu in the comments, the most direct way to test whi...
How are booleans formatted in Strings in Python?
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>>> print "%r, %r" % (True, False)
True, False
This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work.
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How do I add 1 day to an NSDate?
...= [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
// now build a NSDate object for the next day
NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
[offsetComponents setDay:1];
NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate: [N...
ImportError: numpy.core.multiarray failed to import
...ved the faulty numpy version and raised the correct numpy version back to life...
– roy650
Jan 30 '17 at 19:48
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When and why should I use a namedtuple instead of a dictionary? [duplicate]
...n -- their key-equivalents, "field names", have to be strings.
Basically, if you were going to create a bunch of instances of a class like:
class Container:
def __init__(self, name, date, foo, bar):
self.name = name
self.date = date
self.foo = foo
self.bar = bar...
c++ 代码调用nsis安装包实现静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术
... the window will be hidden.
sei.nShow = SW_SHOWNORMAL;
if (!ShellExecuteEx(&sei)) {
DWORD dwStatus = GetLastError();
if (dwStatus == ERROR_CANCELLED) {
// The user refused to allow privileges elevation.
...
Google breakpad stackwalker无法加载符号 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...try:
os.makedirs(path)
except OSError as exception:
if exception.errno != errno.EEXIST:
raise
def main(argv):
if len(sys.argv) < 2:
print ("Please input binary files.")
sys.exit(2)
for i in range(1,len(sys.argv)):
binary = sys.argv[i]
...