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In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
In my experience, getting dates/times right when programming is always fraught with danger and difficulity.
3 Answers
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Measure the time it takes to execute a t-sql query
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One simplistic approach to measuring the "elapsed time" between events is to just grab the current date and time.
In SQL Server Management Studio
SELECT GETDATE();
SELECT /* query one */ 1 ;
SELECT GETDATE();
SELECT /* query two */ 2 ;
SELECT GETDATE();
To calculate el...
java get file size efficiently
...ode below:
For runs = 1 and iterations = 1 the URL method is fastest most times followed by channel. I run this with some pause fresh about 10 times. So for one time access, using the URL is the fastest way I can think of:
LENGTH sum: 10626, per Iteration: 10626.0
CHANNEL sum: 5535, per Iteration...
Why is Swift compile time so slow?
... berzek.
Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that Apple added real-time compilation feedback over the files it compiles, so Xcode 6 GM now shows which Swift files are being compiled and the status of compilation in real time as you can ...
How do I get the current Date/time in DD/MM/YYYY HH:MM format?
How can I get the current date and time in DD/MM/YYYY HH:MM format and also increment the month?
4 Answers
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PostgreSQL database default location on Linux
What is the default directory where PostgreSQL will keep all databases on Linux?
8 Answers
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...1;
// Delay execution of my block for 10 seconds.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSLog(@"parameter1: %d parameter2: %f", parameter1, parameter2);
});
More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_af...
What's the simplest way to print a Java array?
In Java, arrays don't override toString() , so if you try to print one directly, you get the className + '@' + the hex of the hashCode of the array, as defined by Object.toString() :
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How to format Joda-Time DateTime to only mm/dd/yyyy?
...8:00:00 ", I want to format it to " 11/15/2013 ", what is the correct DateTimeFormatter pattern?
9 Answers
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`find -name` pattern that matches multiple patterns
I was trying to get a list of all python and html files in a directory with the command find Documents -name "*.{py,html}" .
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