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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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Matplotlib discrete colorbar

I am trying to make a discrete colorbar for a scatterplot in matplotlib 7 Answers 7 ...
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How to Generate unique file names in C#

...ll generate unique names for files that will save on hard drive. I'm appending DateTime : Hours,Minutes,Second and Milliseconds but still it generates duplicate name of files because im uploading multiple files at a time. ...
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List columns with indexes in PostgreSQL

I would like to get the columns that an index is on in PostgreSQL. 23 Answers 23 ...
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Shorten string without cutting words in JavaScript

I'm not very good with string manipulation in JavaScript, and I was wondering how you would go about shortening a string without cutting any word off. I know how to use substring, but not indexOf or anything really well. ...
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xcodebuild says does not contain scheme

... You are definitely on the right track with respect to the .xcscheme file -- I had this problem appear while setting up my own projects! For posterity, or at least anyone getting here from a search, here are two versions of things -- th...
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What Product Flavor does Android Studio build by default in build.gradle?

...io as a development tool. When there are several product flavors specified in build.gradle , we notice that Android Studio builds the first one specified alphabetically. Is there a way to tell Android Studio to build and test only a specific product flavor during development? ...
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Android App Not Install. An existing package by the same name with a conflicting signature is alread

In my emulator, when I try to do an upgrade of my apk programmatically. I get: 14 Answers ...
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How to print a linebreak in a python function?

I have a list of strings in my code; 8 Answers 8 ...
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Publish to S3 using Git?

Does anyone know how to do this? So far I haven't been able to find anything useful via Google. 8 Answers ...