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Efficiently convert rows to columns in sql server

I'm looking for an efficient way to convert rows to columns in SQL server, I heard that PIVOT is not very fast, and I need to deal with lot of records. ...
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'sudo gem install' or 'gem install' and gem locations

Running ' sudo gem list --local ' and ' gem list --local ' give me differing results. My gem path is set to my home folder and only contains the gems from ' gem list --local '. ...
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How to use my view helpers in my ActionMailer views?

I want to use the methods I defined in app/helpers/annotations_helper.rb in my ReportMailer views ( app/views/report_mailer/usage_report.text.html.erb ). How do I do this? ...
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Iterate through pairs of items in a Python list [duplicate]

Is it possible to iterate a list in the following way in Python (treat this code as pseudocode)? 5 Answers ...
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How to call a method defined in an AngularJS directive?

I have a directive, here is the code : 13 Answers 13 ...
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What good are SQL Server schemas?

I'm no beginner to using SQL databases, and in particular SQL Server. However, I've been primarily a SQL 2000 guy and I've always been confused by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment? ...
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Using Java to find substring of a bigger string using Regular Expression

If I have a string like this: 12 Answers 12 ...
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Maven does not find JUnit tests to run

I have a maven program, it compiles fine. When I run mvn test it does not run any tests (under TESTs header says There are no tests to run. ). ...
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Remove elements from collection while iterating

AFAIK, there are two approaches: 8 Answers 8 ...
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Google Map API v3 — set bounds and center

I've recently switched to Google Maps API V3. I'm working of a simple example which plots markers from an array, however I do not know how to center and zoom automatically with respect to the markers. ...