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Redis: possible to expire an element in an array or sorted set?
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What is the most efficient way to store a list in the Django models?
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edited Feb 17 '17 at 13:19
Community♦
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answered Jul 10 '09 at 15:23
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Find difference between timestamps in seconds in PostgreSQL
I have a table in PostgreSQL 8.3 with 2 timestamp columns. I would like to get the difference between these timestamps in seconds. Could you please help me how to get this done?
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Classes residing in App_Code is not accessible
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Kevin Panko
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answered Aug 3 '09 at 13:14
StevenMcDStevenMcD
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How to print last two columns using awk
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codaddictcodaddict
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Java: method to get position of a match in a String?
...ward (or backward) starting at the specified index].
String text = "0123hello9012hello8901hello7890";
String word = "hello";
System.out.println(text.indexOf(word)); // prints "4"
System.out.println(text.lastIndexOf(word)); // prints "22"
// find all occurrences forward
for (int i = -1; (i = te...
How to install Android SDK Build Tools on the command line?
...you need to install multiple packages do:
android update sdk -u -a -t 1,2,3,4,..,n
Where 1,2,..,n is the package number listed with the list command above
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“is” operator behaves unexpectedly with integers
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403
Take a look at this:
>>> a = 256
>>> b = 256
>>> id(a)
9987148
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Hexadecimal To Decimal in Shell Script
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To convert from hex to decimal, there are many ways to do it in the shell or with an external ...