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Which timestamp type should I choose in a PostgreSQL database?
...a user’s time zone as a user preference (e.g. America/Los_Angeles, not -0700).
Have user events/time data submitted local to their frame of reference (most likely an offset from UTC, such as -0700).
In application, convert the time to UTC and stored using a TIMESTAMP WITH TIME ZONE column.
Return ...
List to array conversion to use ravel() function
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237
Use numpy.asarray:
import numpy as np
myarray = np.asarray(mylist)
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Counting the number of True Booleans in a Python List
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answered Oct 7 '12 at 3:13
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
667k127127 gold badges11911191 silver badges12501250 bronze badges
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How to properly compare two Integers in Java?
...== y);
This will print true, due to the rules of boxing (JLS section 5.1.7). It's still reference equality being used, but the references genuinely are equal.
If the value p being boxed is an integer literal of type int between
-128 and 127 inclusive (§3.10.1), or the boolean literal true o...
Using “super” in C++
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answered Oct 7 '08 at 22:00
Max LybbertMax Lybbert
18k33 gold badges4141 silver badges6868 bronze badges
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Environment variables for java installation
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Java SE Development Kit 8u112 on a 64-bit Windows 7 or Windows 8
Set the following user environment variables (== environment variables of type user variables)
JAVA_HOME : C:\Program Files\Java\jdk1.8.0_112
JDK_HOME : %JAVA_HOME%
JRE_HOME : %JAVA_HOME%\jre
CLASSPATH : ....
How to check Django version
... Django for our application. So I have two versions of Python, 2.6 and 2.7. Now I have installed Django. I could run the sample application for testing Django succesfuly. But how do I make sure whether Django uses the 2.6 or 2.7 version and what version of modules Django uses?
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Why do we copy then move?
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97
Before I answer your questions, one thing you seem to be getting wrong: taking by value in C++11...
Why is an int in OCaml only 31 bits?
...address space and a number of special objects like true, false, nil, the 127 ASCII characters, some commonly used short strings, the empty list, the empty object, the empty array and so on near the 0 address.
For example, in the MRI, YARV and Rubinius Ruby interpreters, integers are encoded the way...