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Find difference between timestamps in seconds in PostgreSQL
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Try:
SELECT EXTRACT(EPOCH FROM (timestamp_B - timestamp_A))
FROM TableA
Details here: EXTRACT.
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What does “%” (percent) do in PowerShell?
...at the % operation starts script blocks after the pipeline, although about_Script_Blocks indicates the % isn't necessary.
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Unix command-line JSON parser? [closed]
...sing modules built into the Perl core:
perl -MData::Dumper -MJSON::PP=from_json -ne'print Dumper(from_json($_))'
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Turn off autosuggest for EditText?
... want to make an EditText look like a textView.
– sir_k
Feb 12 '15 at 19:55
1
Doesn't work in a c...
Disable LESS-CSS Overwriting calc() [duplicate]
...at there should be an easier way to do this...
– gion_13
May 27 '14 at 7:03
2
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How can I read a large text file line by line using Java?
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Use StandardCharsets.UTF_8, use Stream<String> for conciseness, and avoid using forEach() and especially forEachOrdered() unless there's a reason.
– Aleksandr Dubinsky
Dec 15 '13 at 9:29
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Rails 4: assets not loading in production
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This works with me. use following command to pre-compile assets
RAILS_ENV=production bundle exec rake assets:precompile
Best of luck!
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How do you add an in-app purchase to an iOS application?
... view controller actions. developer.apple.com/library/ios/technotes/tn2387/_index.html
– Craig Pickering
Apr 18 '15 at 9:30
3
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Facebook Graph API, how to get users email?
...f your call to the Auth Dialog.
I'd recommend using an SDK instead of file_get_contents as it makes it far easier to perform the Oauth authentication.
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JSON formatter in C#?
...rtant: fixed some bugs.
class JsonHelper
{
private const string INDENT_STRING = " ";
public static string FormatJson(string str)
{
var indent = 0;
var quoted = false;
var sb = new StringBuilder();
for (var i = 0; i < str.Length; i++)
{
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