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When/Why to use Cascading in SQL Server?
..., under what circumstances should you have it cascade on delete or update, and what is the reasoning behind it?
15 Answers
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How come a non-const reference cannot bind to a temporary object?
...ct,
which function getx() returns? Clearly, this is prohibited by C++ Standard
but I am interested in the purpose of such restriction, not a reference to the standard.
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pip issue installing almost any library
... new to coding, so I thought maybe this is something I've been doing wrong and have opted out to easy_install to get most of what I needed done, which has generally worked. However, now I'm trying to download the nltk library, and neither is getting the job done.
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Is it possible in Java to catch two exceptions in the same catch block? [duplicate]
I need to catch two exceptions because they require the same handling logic. I would like to do something like:
6 Answers
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Compare DATETIME and DATE ignoring time portion
... to the date-part of the day after DF2.
I.e. (DF1 >= CAST(DF2 AS DATE)) AND (DF1 < DATEADD(dd, 1, CAST(DF2 AS DATE)))
NOTE: It is very important that the comparison is >= (equality allowed) to the date of DF2, and (strictly) < the day after DF2. Also the BETWEEN operator doesn't work bec...
wkhtmltopdf: cannot connect to X server
...virtual X server in the static version . I have been using the static (stand-alone) version of the program and it works great! I would put the executable file in a folder, and run:
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How do I convert a double into a string in C++?
...y:
std::string str = boost::lexical_cast<std::string>(dbl);
The Standard C++ way:
std::ostringstream strs;
strs << dbl;
std::string str = strs.str();
Note: Don't forget #include <sstream>
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How to use SCNetworkReachability in Swift
...the Swift language, which made it a bit confusing. I have now rewritten it and removed everything which refers to Swift 1.x. The older code can
be found in the edit history if somebody needs it.)
This is how you would do it in Swift 2.0 (Xcode 7):
import SystemConfiguration
func connectedToNetwor...
Which Python memory profiler is recommended? [closed]
I want to know the memory usage of my Python application and specifically want to know what code blocks/portions or objects are consuming most memory.
Google search shows a commercial one is Python Memory Validator (Windows only).
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how do I check in bash whether a file was created more than x time ago?
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you can drop 'test' and the backticks. This is analogous to 'if (test == true)' vs 'if (test)'
– guns
Sep 9 '09 at 19:51
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