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Rails 3 execute custom sql query without a model

... – Leigh McCulloch Jan 6 '15 at 16:07 github.com/igorkasyanchuk/execute_sql less code is needed plus you can do it in...
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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query

... answered Apr 26 '10 at 15:26 Peter LangPeter Lang 49.3k2626 gold badges138138 silver badges152152 bronze badges ...
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How to create index on JSON field in Postgres?

... sdgluck 15.7k22 gold badges4848 silver badges7070 bronze badges answered Jul 23 '13 at 11:25 rlibrlib 5,29633 gold badges242...
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Is there a performance difference between a for loop and a for-each loop?

... answered Nov 2 '08 at 12:47 Vijay DevVijay Dev 23k2020 gold badges7070 silver badges9696 bronze badges ...
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Convert UNIX epoch to Date object

...ntegers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion? ...
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Defining a percentage width for a LinearLayout? [duplicate]

I want to define a percentage width (70%) for a LinearLayout that contains some buttons, so that I can center it and so that the child buttons can fill_parent. Here's a picture showing what I mean: ...
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Calculating sum of repeated elements in AngularJS ng-repeat

...</td> In Controller $scope.getTotal = function(){ var total = 0; for(var i = 0; i < $scope.cart.products.length; i++){ var product = $scope.cart.products[i]; total += (product.price * product.quantity); } return total; } ...
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Get an element by index in jQuery

... answered Mar 27 '12 at 10:18 gdoron is supporting Monicagdoron is supporting Monica 132k4848 gold badges268268 silver badges333333 bronze badges ...
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Reading a binary file with python

...ython. Can you give me a hand? I need to read this file, which in Fortran 90 is easily read by 6 Answers ...
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How to insert a row in an HTML table body in JavaScript

... 220 If you want to add a row into the tbody, get a reference to it and add it there. var tableRef =...