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Difference between Select Unique and Select Distinct

...is synonymous with SELECT DISTINCT. Use SELECT DISTINCT because this is standard SQL, and SELECT UNIQUE is non-standard, and in database brands other than Oracle, SELECT UNIQUE may not be recognized at all. share |...
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Rails server says port already used, how to kill that process?

...rectory to the following file tmp/pids/server.pid – tandy Feb 15 '14 at 19:29 This can happen if you're running debugg...
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Multiprocessing vs Threading Python [duplicate]

I am trying to understand the advantages of multiprocessing over threading . I know that multiprocessing gets around the Global Interpreter Lock, but what other advantages are there, and can threading not do the same thing? ...
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Update parent scope variable in AngularJS

... You need to use an object (not a primitive) in the parent scope and then you will be able to update it directly from the child scope Parent: app.controller('ctrlParent',function($scope){ $scope.parentprimitive = "someprimitive"; $scope.parentobj = {}; $scope.parentobj.parent...
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Why does instanceof return false for some literals?

Array literals and Object literals match... 10 Answers 10 ...
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Easier way to debug a Windows service

...code than to start the service through the Windows Service Control Manager and then attaching the debugger to the thread? It's kind of cumbersome and I'm wondering if there is a more straightforward approach. ...
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Iterate over each line in a string in PHP

...ts of the file into a textarea. I can easily differentiate between the two and put whichever one they entered into a string variable, but where do I go from there? ...
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Is there a JavaScript strcmp()?

...eCompare() looked good, but it looked like it was MS-only, or not in the standard at best. – jonathan Jul 24 '09 at 18:49 10 ...
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What's the difference between including files with JSP include directive, JSP include action and usi

...se are Java coding elements such as declarations, expressions, scriptlets, and comments. Objects and scopes: JSP objects can be created either explicitly or implicitly and are accessible within a given scope, such as from anywhere in the JSP page or the session. Actions: These create objects or affe...
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Why is processing a sorted array faster than processing an unsorted array?

...e long distance or radio communication. You are the operator of a junction and you hear a train coming. You have no idea which way it is supposed to go. You stop the train to ask the driver which direction they want. And then you set the switch appropriately. Trains are heavy and have a lot of inert...