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Computed / calculated / virtual / derived columns in PostgreSQL

...hese solutions are pretty much useless (without huge code changes to a codebase with no test cases) when migrating from oracle to postgres. Are there any solutions from the migration perspective ? – happybuddha Oct 3 '16 at 0:41 ...
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Regular expression to match URLs in Java

...EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java : /* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in co...
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How to optimize for-comprehensions and loops in Scala?

...ween run times of 2.5s and 0.7s were entirely due to whether the 32-bit or 64-bit JVMs were being used. Scala from the command line uses whatever is set by JAVA_HOME, while Java uses 64-bit if available regardless. IDEs have their own settings. Some measurements here: Scala execution times in Eclips...
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Read binary file as string in Ruby

... You can probably encode the tar file in Base64. Base 64 will give you a pure ASCII representation of the file that you can store in a plain text file. Then you can retrieve the tar file by decoding the text back. You do something like: require 'base64' file_cont...
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Firebase Storage How to store and Retrieve images [closed]

How to store and view images on firebase? 6 Answers 6 ...
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jQuery scroll() detect when user stops scrolling

...triggered'); }, 250); http://yckart.github.com/jquery.unevent.js/ (this demo uses resize instead of scroll, but who cares?!) share | improve this answer | follow ...
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Practical usage of setjmp and longjmp in C

...mp supports the implementation of corroutines (as much as I see it doesn't base on any non-standard or new behaviour). EDIT: It could be that it actually is undefined behaviour to do a longjmp down the callstack (see comment of MikeMB; though I have not yet had opportunity to verify that). #includ...
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The name 'model' does not exist in current context in MVC3

...ystem.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <pages pageBaseType="System.Web.Mvc.WebViewPage"> <namespaces> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespac...
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“/usr/bin/ld: cannot find -lz”

...lib1g-dev did not fix it. Installing lib32z1-dev got me past it. I have a 64 bit system and it seems like it wanted the 32 bit library. share | improve this answer | follow ...
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Pagination on a list using ng-repeat

... Hi, this demo came so handy for a project I got involved. I needed to add the option to view all, or toggle pagination as well as show each page. So I extended the demo. thanks a lot. jsfiddle.net/juanmendez/m4dn2xrv ...