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Avoid duplicates in INSERT INTO SELECT query in SQL Server
...the three options, the LEFT JOIN/IS NULL is less efficient. See this link for more details.
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Is the practice of returning a C++ reference variable evil?
...nter:
std::unique_ptr<int> x = getInt();
References are also okay for accessing things where you know the lifetime is being kept open on a higher-level, e.g.:
struct immutableint {
immutableint(int i) : i_(i) {}
const int& get() const { return i_; }
private:
int i_;
};
H...
Declaration/definition of variables locations in ObjectiveC?
...and the best practice and situations where I'd want to use these locations for my variables and perhaps correct my present understanding?
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Are there conventions on how to name resources?
Are there conventions how to name resources in Android? For example, buttons, textViews, menus, etc.
15 Answers
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About catching ANY exception
...ip())
except IOError as (errno, strerror):
print "I/O error({0}): {1}".format(errno, strerror)
except ValueError:
print "Could not convert data to an integer."
except:
print "Unexpected error:", sys.exc_info()[0]
raise
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Add params to given URL in Python
...mple:
try:
import urlparse
from urllib import urlencode
except: # For Python 3
import urllib.parse as urlparse
from urllib.parse import urlencode
url = "http://stackoverflow.com/search?q=question"
params = {'lang':'en','tag':'python'}
url_parts = list(urlparse.urlparse(url))
query...
A Java API to generate Java source files [closed]
I'm looking for a framework to generate Java source files.
15 Answers
15
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Specifically, what's dangerous about casting the result of malloc?
Now before people start marking this a dup, I've read all the following, none of which provide the answer I'm looking for:
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Why can't Python parse this JSON data?
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Your data is not valid JSON format. You have [] when you should have {}:
[] are for JSON arrays, which are called list in Python
{} are for JSON objects, which are called dict in Python
Here's how your JSON file should look:
{
"maps": [
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How to make PDF file downloadable in HTML link?
I am giving link of a pdf file on my web page for download, like below
13 Answers
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