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unable to install pg gem

I tried using gem install pg but it doesnt seem to work gem install pg gives this error Temporarily enhancing PATH to include DevKit Building native extensions

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Use email address as primary key

Is email address a bad candidate for primary when compared to auto incrementing numbers Our web application needs the email address to be unique in the system

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Using AjaxBeginForm with ASPNET MVC 3 Razor

Is there a tutorial or code example of using AjaxBeginForm within Aspnet MVC 3 where unobtrusive validation and Ajax exist This is an elusive topic for MVC 3

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What does at symbol colon mean in a Makefile

What does the following do in a Makefile rule deps I cant seem to find this in the make

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What is the difference between Lucene and Elasticsearch

I know ElasticSearch is built upon Apache Lucene but I want to know the significant differences between the

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What is the difference between UTC and GMT

I have a few queries regarding the Time zones Can the time be captured in UTC alone Is UTC 6 and GMT 6 the same and does that mean it is US local time Say I

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What is the dual table in Oracle

Ive heard people referring to this table and was not sure what it was

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What is the opposite of evtpreventDefault

Once Ive fired an evtpreventDefault how can I resume default actions

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What should I do when svn cleanup fails

I have a lot of changes in a working folder and something screwed up trying to do an update Now when I issue an svn cleanup I get gtsvn cleanup svn In

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