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postgresql return 0 if returned value is null
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182
use coalesce
COALESCE(value [, ...])
The COALESCE function returns the first of its argumen...
Why use try {} finally {} with an empty try block?
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From http://blog.somecreativity.com/2008/04/10/the-empty-try-block-mystery/:
This methodology guards against a
Thread.Abort call interrupting the
processing. The MSDN page of
Thread.Abort says that “Unexecuted
finally blocks are executed before the
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Replace words in a string - Ruby
... lucasarruda
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answered Jan 2 '13 at 18:05
srcspidersrcspider
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Check if a given key already exists in a dictionary and increment it
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edited Feb 2 '19 at 8:26
JamesThomasMoon1979
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Is \d not supported by grep's basic expressions?
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answered Aug 1 '11 at 16:08
DaenythDaenyth
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How can I tell when HttpClient has timed out?
...timeout, so they will NEVER throw.
string baseAddress = "http://localhost:8080/";
var client = new HttpClient()
{
BaseAddress = new Uri(baseAddress),
Timeout = TimeSpan.FromMilliseconds(1)
};
try
{
var s = await client.GetAsync();
}
catch(Exception e)
{
Console.WriteLine(e.Messa...
How to Pass Parameters to Activator.CreateInstance()
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answered Mar 16 '10 at 0:08
SLaksSLaks
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sqlite database default time value 'now'
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answered Oct 14 '08 at 8:01
OwenOwen
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json.dumps vs flask.jsonify
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edited Nov 8 '19 at 3:59
SuperShoot
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How to get all selected values from ?
... Felix KlingFelix Kling
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