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Server is already running in Rails
When I am starting rails server using rails s command it is showing A server is already running. Check C:/Sites/folder/Pids/Server.pids
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rgdal package installation
The issue here is not exactly how to plot maps through R, as I have found already a pretty nice example here , but rather how to make it work. In fact, I am unable to load library rgdal :
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Warning: push.default is unset; its implicit value is changing in Git 2.0
I've been using Git for a while now and have recently downloaded an update only to find this warning message come up when I try to push .
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How to get the size of a JavaScript object?
I want to know the size occupied by a JavaScript object.
20 Answers
20
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Xcode: Build Failed, but no error messages
Using Xcode 4.5.1. Our project has been building fine for the last three months, but suddenly, when I try to build, it says "Build failed", but does not show any errors on the triangle exclamation mark tab, nor does it give a reason when it pops up build failed.
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How can I set a custom date time format in Oracle SQL Developer?
By default, Oracle SQL developer displays date values as 15-NOV-11 . I would like to see the time part (hour/minute/second) by default.
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Developing for Android in Eclipse: R.java not regenerating
I've found out that my R.java is never updated, so it doesn't contain information about my new resources, so I decided to delete it and thought that Eclipse would generate a new one. But that didn't happen, and I don't have R.java now. How can I regenerate one?
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Runtime vs. Compile time
What is the difference between run-time and compile-time?
28 Answers
28
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Best data type to store money values in MySQL
I want to store many records in a MySQL database. All of them contains money values. But I don't know how many digits will be inserted for each one.
Which data type do I have to use for this purpose?
VARCHAR or INT (or other numeric data types)?
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Dilemma: when to use Fragments vs Activities:
I know that Activities are designed to represent a single screen of my application, while Fragments are designed to be reusable UI layouts with logic embedded inside of them.
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